I want to write a program that finds a word that the user entered I think my solution is right but when I Run it, the program shows nothing in the console
anybody can fix it?
int main()
{
char sen[200],del[200],maybedel[200];
cout<<"enter sentence :"<<endl;
cin.getline(sen,200);
cout<<"which word do you want to delete ?";
cin.getline(del,200);
int len = strlen(sen);
for(int i=0;i<=len;i++)
{
if(sen[i]==' ')
{
for(int j=i;j<=len;j++)
if(sen[j]==' ' || sen[j]=='\0')
for(int k=i+1,t=0;k<j;k++,t++)
maybedel[t]=sen[k];
if(maybedel==del)
cout<<maybedel;
}
}
return 0;
}
The line if(sen[i]==' '), line 12 of your code , prevents code from entering the block unless the sentence begins with (' ')!
I changed the code a bit and now it works fine.
char sen[200], del[200], maybedel[200];
cout << "enter sentence :" << endl;
cin.getline(sen, 200);
cout << "which word do you want to delete ?" << endl;
cin.getline(del, 200);
int len = strlen(sen);
int t = 0;
for(int i = 0; i <= len; i++) {
if(sen[i] == ' ' || sen[i] == '\0') {
maybedel[t] = '\0';
t = 0;
if(strcmp(del,maybedel)==0) {
cout << maybedel << endl;
}
}
else
{
maybedel[t] = sen[i];
t++;
}
}
The major reason for no output is
if (maybedel == del) // <<< this will *never* be true
cout << maybedel; // will never run
Since comparing "strings" in arrays needs help from std::strcmp(maybedel,del) == 0 would be better.
UPDATE:
Another attack method is to avoid raw loops and utilize the STL to your favor. Here's a more robust solution:
#include <algorithm>
#include <iostream>
#include <iterator>
#include <sstream>
#include <vector>
using namespace std;
int main() {
cout << "enter sentence :\n";
string sen;
if (!getline(cin, sen)) throw std::runtime_error("Unable to read sentence");
cout << "which word do you want to delete ? ";
string del;
if (!(cin >> del)) throw std::runtime_error("Unable to read delete word");
istringstream stream_sen(sen);
vector<string> arrayofkeptwords;
remove_copy_if(istream_iterator<string>(stream_sen), istream_iterator<string>(),
back_inserter(arrayofkeptwords),
[&del](auto const &maybedel) { return maybedel == del; });
copy(begin(arrayofkeptwords), end(arrayofkeptwords),
ostream_iterator<string>(cout, " "));
cout << '\n';
}
Related
I am trying to make a program in which a user enters a string and i will print out the second word in the string with its size.
The delimiter's are space( ), comma(,) and tab( ).
I have used a character array and fgets to read from user and a character pointer that points to the first element of the array.
source code:
#include"iostream"
#include<stdio.h>
#include<string>
using namespace std;
// extract the 2nd word from a string and print it with its size(the number of characters in 2nd word)
int main()
{
char arr[30], arr1[30];
char *str = &arr1[0];
cout<<"Enter a string: ";
fgets(str, 30, stdin);
int i = 0, j, count = 1, p = 0; // count is used to find the second word
// j points to the next index where the first delimiter is found.
// p is used to store the second word found in character array 'arr'
while(*(str+i) != '\n')
{
if(*(str+i) == ' ' || *(str+i) == ',' || *(str+i) == ' ')
{
count++;
if(count == 2)
{
// stroing 2nd word in arr character array
j = i+1;
while(*(str+j) != ' ' || *(str+j) != ',' || *(str+j) != ' ')
{
arr[p] = *(str+j);
cout<<arr[p];
p++;
i++;
j++;
}
break;
}
}
i++;
}
arr[p+1] = '\0'; // insert NULL at end
i = 0;
while(arr[i] != '\0')
{
cout<<arr[i];
i++;
}
cout<<"("<<i<<")"<<endl;
return 0;
}
Help me out with this.
To start, don't use std::cin for testing. Just set a value in your code for consistency and ease of development. Use this page for a reference.
#include <iostream>
#include <string>
int main() {
std::string str("this and_that are the tests");
auto start = str.find_first_of(" ,\n", 0);
auto end = str.find_first_of(" ,\n", start + 1);
std::cout << str.substr(start, end - start);
return 0;
}
And this is still somewhat of a hack, it just depends where you are going. For instance the Boost library is rich with extended string manipulation. If you are going to parse out more than just one word it can still be done with string manipulations, but ad-hoc parsers can get out of hand. There are other tools like Boost Spirit to keep code under control.
The delimiters used when extracting from a stream depends on the locale currently in effect. One (cumbersome) way to change the extraction behaviour is to create a new locale with a special facet in which you specify your own delimiters. In the below example the new locale is used to imbue a std::stringstream instead of std::cin directly. The facet creation part is mostly copy/paste from other answers here on SO, so you'll find plenty of other examples.
#include <iostream>
#include <locale> // std::locale, std::ctype<char>
// https://en.cppreference.com/w/cpp/locale/ctype_char
#include <sstream> // std::stringstream
#include <algorithm> // std::copy_n
#include <vector> // a container to store stuff in
// facet to create our own delimiters
class my_facet : public std::ctype<char> {
mask my_table[table_size];
public:
my_facet(size_t refs = 0)
: std::ctype<char>(&my_table[0], false, refs)
{
// copy the "C" locales table to my_table
std::copy_n(classic_table(), table_size, my_table);
// and create our delimiter specification
my_table[' '] = (mask)space;
my_table['\t'] = (mask)space;
my_table[','] = (mask)space;
}
};
int main() {
std::stringstream ss;
// create a locale with our special facet
std::locale loc(std::locale(), new my_facet);
// imbue the new locale on the stringstream
ss.imbue(loc);
while(true) {
std::string line;
std::cout << "Enter sentence: ";
if(std::getline(std::cin, line)) {
ss.clear(); // clear the string stream from prior errors etc.
ss.str(line); // assign the line to the string stream
std::vector<std::string> words; // std::string container to store all words in
std::string word; // for extracting one word
while(ss>>word) { // extract one word at a time using the special facet
std::cout << " \"" << word << "\" is " << word.size() << " chars\n";
// put the word in our container
words.emplace_back(std::move(word));
}
if(words.size()>=2) {
std::cout << "The second word, \"" << words[1] << "\", is " << words[1].size() << " chars\n";
} else {
std::cout << "did not get 2 words or more...\n";
}
} else break;
}
}
#include"iostream"
#include<stdio.h>
#include<string>
#include <ctype.h>
using namespace std;
int main()
{
char c;
string str;
char emp = ' ';
cout<<"Enter a string: ";
getline (cin,str);
int j = 0, count = 1, counter = 0;
for (int i = 0; i < str.length() && count != 2; i++)
{
cout<< str[i] <<endl;
if( isspace(str[i]) || str[i] == ',' || str[i] == '\t' )
{
count++;
if(count == 2)
{
j = i+1;
while(j < str.length())
{
if (isspace(str[j]) || str[j] == ',' || str[j] == '\t')
{
break;
}
cout<<str[j];
counter++;
j++;
}
cout<<endl;
}
}
}
cout<<"size of the word: "<<counter<<endl;
return 0;
}
This is a simple answer to what you want, hope to help you.
// Paul Adrian P. Delos Santos - BS Electronics Engineering
// Exercise on Strings
#include <iostream>
#include <sstream>
using namespace std;
int main(){
// Opening Message
cout << "This program will display the second word and its length.\n\n";
// Ask for a string to the user.
string input;
cout << "Now, please enter a phrase or sentence: ";
getline(cin, input);
// Count the number of words to be used in making a string array.
int count = 0;
int i;
for (i=0; input[i] != '\0'; i++){
if (input[i] == ' ')
count++;
}
int finalCount = count + 1;
// Store each word in a string array.
string arr[finalCount];
int j = 0;
stringstream ssin(input);
while (ssin.good() && j < finalCount){
ssin >> arr[j];
j++;
}
// Display the second word and its length.
string secondWord = arr[1];
cout << "\nResult: " << arr[1] << " (" << secondWord.size() << ")";
return 0;
}
This program is suppose to generate passwords and compare to what the user inputed, if they match it breaks the while loop and outputs the user's input, but for some reason, the generated passwords are just one characters. I am new to C++, I just started like last Friday.
#include <iostream>
#include <unistd.h>
using namespace std;
int main()
{
string Password, Passwords;
cout << "Enter a password: ";
getline(cin, Password);
sleep(.7);
system("clear");
while(Password.compare(Passwords)!= 0)
{
for (int x = 0; x <= Password.length(); x++)
{
for (char Alpha = 'a'; Alpha <= 'z'; Alpha++)
{
if(Alpha == 'z')
{
Alpha = 'a';
}
for(int I=0; I <= 10; I++)
{
Passwords = Alpha + I;
system("clear");
sleep(.7);
cout << Passwords <<endl;
}
}
}
}
cout << "Password found: " << Passwords <<endl;
return 0;
}
After a long back and forward in the comments, the OP explained what was his purpose. To generate random words of the same size as input and stop when it matched the input.
This code does what you want. It's in c++14 so you need a recent compiler and to set the c++14 option. Please note the actual use of random.
#include <iostream>
#include <string>
#include <random>
#include <algorithm>
using std::cin;
using std::cout;
using std::cerr;
using std::endl;
class RandomCharGenerator {
private:
static std::string s_chars_;
private:
std::random_device rd_{};
std::default_random_engine r_eng_{rd_()};
std::uniform_int_distribution<int> char_dist_{
0, static_cast<int>(s_chars_.size())};
public:
RandomCharGenerator() = default;
auto getRandomChar() -> char { return s_chars_[char_dist_(r_eng_)]; }
auto setRandomString(std::string &str) -> void {
std::generate(std::begin(str), std::end(str),
[this] { return this->getRandomChar(); });
}
};
std::string RandomCharGenerator::s_chars_ = "abcdefghijklmnopqrstuvwxyz";
auto main() -> int {
RandomCharGenerator rand_char;
auto input = std::string{};
cin >> input;
auto generated = std::string(input.size(), ' ');
do {
rand_char.setRandomString(generated);
cout << generated << endl;
} while (input != generated);
cout << "We generated what you input" << endl;
return 0;
}
For input longer than 4 characters it takes a long time to generate the input.
Ideone demo
To understand why you had only 1 char in your Passwords:
Passwords = Alpha + I;
Alpha is a char, I is an int. Their sum is an int. This is converted to char when assigning to Passwords which is a string. So Passwords is now a string composed of only one char.
It's not clear what that actual line of code was supposed to do, so can't tell you what would have been the fix. Maybe you meant to append to Passwords. Then you should have written Passwords += Alpha + I.
The code below is an example of what I am trying to make. I did not make the code below, am just giving you and example of what am trying to do in the code above
#include <iostream>
#include <string>
#include <unistd.h>
using namespace std;
int main()
{
string password;
string Generated;
cout << "Password to find: ";
cin >> password;
char Alpha[]={'a'-1,'a','a','a','a','a','a','a','a','a'};
while( password.compare(Generated) != 0 )
{
Alpha[0]++;
for(int x=0;x<password.length();x++)
{
if (Alpha[x] == 'z'+1)
{
Alpha[x] = 'a';
Alpha[x + 1]++;
}
}
Generated=Alpha[password.length()-1];
for(int i=password.length()-2; i>=0 ; i-- )
Generated+= Alpha[i];
system("clear");
cout << "Trying: "<< Generated << endl;
}
system("clear");
sleep(1);
cout <<"Access Granted: "<< Generated << endl;
return 0;
}
how can I print a single word from a string in each line with the number of characters right next to it and the average of the characters together? I'm suppose to use a string member function to convert the object into a c string. The function countWords accepts the c string and returns an int. The function is suppose to read in each word and their lengths including the average of characters. I have done how much words are in the string except I don't know how continue the rest.
For example: super great cannon boys
super 5
great 5
cannon 6
boys 4
average of characters: 5
This is my program so far:
#include <iostream>
#include <string>
#include <cstring>
using namespace std;
int countWords(char *sentence);
int main()
{
const int size=80;
char word[size];
double average=0;
cout<<"Enter words less than " <<size-1<<" characters."<<endl;
cin.getline(word, size);
cout <<"There are "<<countWords(word)<<" words in the sentence."<<endl;
return 0;
}
int countWords(char *sentence)
{
int words= 1;
while(*sentence != '\0')
{
if(*sentence == ' ')
words++;
sentence++;
}
return words;
}
Unless this is something like homework that prohibits doing so, you almost certainly want to use std::string along with the version of std::getline that works with a std::string instead of a raw buffer of char:
std::string s;
std::getline(std::cin, s);
Then you can count the words by stuffing the line into a std::istringstream, and reading words out of there:
std::istringstream buffer(s);
auto word_count = std::count(std::istream_iterator<std::string>(s),
std::istream_iterator<std::string());
To print out the words and their lengths as you go, you could (for example) use std::for_each instead:
int count = 0;
std::for_each(std::istream_iterator<std::string>(s),
std::istream_iterator<std::string>(),
[&](std::string const &s) {
std::cout << s << " " << s.size();
++count;});
This should not be far from you requirements - I only did minimal modification to your present code.
Limits :
you'd better use
string line;
getline(cin, line);
to read the line to be able to accept lines of any size
my present code assumes
no spaces at beginning or end of line
one single space between 2 words
it should be improved to cope with extra spaces, but I leave that to you as an exercise :-)
The code :
#include <iostream>
#include <string>
#include <cstring>
using namespace std;
int countWords(char *sentence, double& average);
int main()
{
const int size=80;
char word[size];
double average=0;
cout<<"Enter words less than " <<size-1<<" characters."<<endl;
cin.getline(word, size);
cout <<"There are "<<countWords(word, average)<<" words in the sentence."<<endl;
cout << "Average of the sentence " << average << endl;
return 0;
}
int countWords(char *sentence, double& average)
{
int words= 1;
int wordlen;
char *word = NULL;
while(*sentence != '\0')
{
if(*sentence == ' ') {
words++;
wordlen = sentence - word;
average += wordlen;
*sentence = '\0';
cout << word << " " << wordlen<< endl;
word = NULL;
}
else if (word == NULL) word = sentence;
sentence++;
}
wordlen = sentence - word;
average += wordlen;
cout << word << " " << wordlen<< endl;
average /= words;
return words;
}
For input : super great cannon boys
Output is :
Enter words less than 79 characters.
super great cannon boys
super 5
great 5
cannon 6
boys 4
There are 4 words in the sentence.
Average of the sentence 5
You can inspire here. Basically use std::getline to read from std::cin to std::string.
#include <iostream>
#include <string>
#include <cctype>
inline void printWordInfo(std::string& word) {
std::cout << "WORD: " << word << ", CHARS: " << word.length() << std::endl;
}
void printInfo(std::string& line) {
bool space = false;
int words = 0;
int chars = 0;
std::string current_word;
for(std::string::iterator it = line.begin(); it != line.end(); ++it) {
char c = *it;
if (isspace(c)) {
if (!space) {
printWordInfo(current_word);
current_word.clear();
space = true;
words++;
}
}
else {
space = false;
chars++;
current_word.push_back(c);
}
}
if (current_word.length()) {
words++;
printWordInfo(current_word);
}
if (words) {
std::cout << "AVERAGE:" << (double)chars/words << std::endl;
}
}
int main(int argc, char * argv[]) {
std::string line;
std::getline(std::cin, line);
printInfo(line);
return 0;
}
Going along the lines of what you already have:
You could define a countCharacters function, like your countWords:
int countCharacters(char *sentence)
{
int i;
char word[size];
for(i = 0; sentence[i] != ' '; i++) //iterate via index
{
word[i] = sentence[i]; //save the current word
i++;
}
cout <<word<< <<i<<endl; //print word & number of chars
return i;
}
which you can call inside your countWords function
int countWords(char *sentence)
{
int words = 1;
for(int i; sentence[i] != '\0';) //again this for loop, but without
//increasing i automatically
{
if(sentence[i] == ' ') {
i += countCharacters(sentence[++i]); //move i one forward to skip
// the space, and then move
// i with the amount of
// characters we just counted
words++;
}
else i++;
}
return words;
}
Hopefully I can explain exactly what's going on, but basically I have a map of words and their corresponding line numbers on a document that is read in by the program. I can output the map and everything with the words and their line numbers but I'm confused on how to change how they output. So here is the code:
here is the main:
#include <iostream>
#include <string>
#include <vector>
#include <set>
#include <algorithm>
#include <fstream>
#include "dictionary.h"
#include "document.h"
using namespace std;
void sentancetoword(string sentance, set<string> words, int lineNum)
{
dictionary d;
document doc;
bool wordCheck;
string word;
stringstream ss(sentance);
while (ss >> word)
{
wordCheck = d.findWord(word, words);
if(!wordCheck)
{
doc.missingMap(word, lineNum);
}
}
doc.displayMap();
}
string letterCheck(string sentance)
{
for(unsigned i = 0; i < sentance.length(); i++)
{
if (!isalpha(sentance[i]))
{
sentance[i] = ' ';
}
}
return sentance;
}
int main(int argc, char* argv[])
{
dictionary dic;
document doc;
set<string> words;
set<string>::iterator it;
string doc_word;
int lineNum = 1;
ifstream in;
in.open(argv[1]);
string word;
while (in >> word)
{
transform(word.begin(), word.end(), word.begin(), ::tolower);
words.insert(word);
}
in.close();
//dic.makeSet(words);
ifstream in2;
in2.open(argv[2]);
while (getline(in2, doc_word))
{
transform(doc_word.begin(), doc_word.end(), doc_word.begin(), ::tolower);
doc_word = letterCheck(doc_word);
sentancetoword(doc_word, words, lineNum);
lineNum++;
}
in2.close();
system("pause");
return 0;
}
#include "document.h"
document::document(void){}
document::~document(void){}
void document::missingMap(string word, int lineNum)
{
misspelled[word].push_back(lineNum);
}
void document::displayMap()
{
for (map<string, vector<int>>::iterator i = misspelled.begin(); i != misspelled.end(); i++)
{
cout << i->first << ": ";
for (vector<int>::iterator j = i->second.begin(); j != i->second.end(); j++)
{
cout << *j << endl;
}
}
}
so the last function is doing the outputting of the map and it outputs as follows:
debugging: 1
process: 2
removing: 2
programming: 3
process: 4
putting: 4
but i need it to output like this:
debugging: 1
process: 2 4
programming: 3
putting: 4
removing: 2
is there something I'm doing wrong in the code or do i need to add a sort function to sort it by the words? I'm honestly lost and don't know where to go from here to get it to output only the word one time followed by the line numbers it appears on. If anyone could help that would be great, and if any more information is needed I'll be happy to add it to the question! Thanks!
Your output doesn't make sense, though I think you will want to do this:
cout << i->first << ": ";
for (vector<int>::iterator j = i->second.begin(); j != i->second.end(); j++)
{
cout << *j << " ";
}
cout << "\n"; //endl is okay, but I prefer only for I really do need to flush the stream
I'm working on this project and I'm fairly new to C++. Its kind of hard to explain what I'm trying to do but I shall try. So I'm working with a file called flix.txt and in it looks like the following:
1 A 5
1 B 4
1 D 3
1 F 5
2 A 1
3 E 3
3 F 1
4 A 2
The first column are people(my objects), second columns are movies, and the third are the ratings given by the objects.
I'm trying to first extract the first int from every line and create an object using an 'operator new'. Then I'm taking a movie and turning it into an int so I can plug the rating into an array. Sorry if it sounds confusing. Heres the code I have now:
//flix program
#include <iostream>
#include <string>
#include <fstream>
#include <sstream>
#define NUMBER_OF_MOVIES 6
using namespace std;
int tokenize(string line);
int getMovieNum(char movie);
void resetPos(istream& flix);
class Matrix{
public:
int movieRate[NUMBER_OF_MOVIES];
};
int main(){
int distinctCount = 0;
int checker = -1;
int check = 0;
string line;
int personNum;
char movie;
int rating;
int movieNum;
ifstream flix("flix.txt");
ofstream flick("flix1.txt");
//identify distinct account numbers in file
while(getline(flix, line)){
check = tokenize(line);
if(check != checker)
distinctCount++;
checker = check;
check = 0;
}
//reset position in file
resetPos(flix);
//create objects in accordance with distinct numbers
Matrix* person = new Matrix[distinctCount];
for(int i = 0; i < distinctCount; i++){
for(int j = 0; j < NUMBER_OF_MOVIES; j++){
person[i].movieRate[j] = 0;
cout << i + 1 << ' ' << person[i].movieRate[j] << endl;
}
cout << "\n";
}
//reset position in file
resetPos(flix);
//get data from file and put into respective variables
while(getline(flix, line)){
flix >> personNum >> movie >> rating;
cout << personNum << ' ' << movie << ' ' << rating << endl;
//changes the char into an int
movieNum = getMovieNum(movie);
person[personNum].movieRate[movieNum] = rating;
}
//reset position in file
resetPos(flix);
//input ratings into movie array
for(int i = 0; i < distinctCount; i++){
for(int j = 0; j < NUMBER_OF_MOVIES; j++){
cout << i + 1 << ' ' << person[i].movieRate[j] << endl;
flick << i + 1 << ' ' << person[i].movieRate[j] << endl;
}
}
//write data to text file
//??
flick.close();
//free memory
delete[] person;
system("pause");
return 0;
}
int tokenize(string line){
string myText(line);
istringstream iss(myText);
string token;
getline(iss, token, ' ');
int strInt = atoi(token.c_str());
return strInt;
}
int getMovieNum(char movie){
int movieNum = 0;
switch(movie){
case 'A':
movieNum = 1;
break;
case 'B':
movieNum = 2;
break;
case 'C':
movieNum = 3;
break;
case 'D':
movieNum = 4;
break;
case 'E':
movieNum = 5;
break;
case 'F':
movieNum = 6;
break;
default:
movieNum = 0;
break;
}
return movieNum;
}
void resetPos(istream& flix){
flix.clear();
flix.seekg(0);
}
I also apologize in advance if there are noobish mistakes here.
I think the problem is somewhere in the while loop, that's where it keeps locking up. I spent hours on this and I can't figure out why it doesn't work. In the while loop, I'm trying to access every line of the file, snag the data from the line, take the movie char and turn it into an int, and then plug the data into the array within the object. When I did have it working, all the data was wrong too. Any input is highly appreciated. Thanks in advance.
You need to change a little in your program and i'l paste only the changed part.
Somewhere after you reset the person[].movieRate[] to zero,you have written this while loop
resetPos(flix);
int k = NUMBER_OF_MOVIES + 2; //this is the variable that i have declared
//get data from file and put into respective variables
while(k){ //do you see that instead of getline() i have used the variable k. i'l tell you why later
flix >> personNum >> movie >> rating;
//personNum = tokenize(line,1);
cout << personNum << ' ' << movie << ' ' << rating << endl;
//changes the char into an int
movieNum = getMovieNum(movie);
person[personNum - 1].movieRate[movieNum] = rating; //this is personNum-1 and NOT personNum the most common mistake while indexing array.
k--;
}
this code seems to work as your criteria.
the reason that i removed getline() is, if u call getline then the get pointer position will be incremented. so after this you call flix >> something... , this reads the data from the second line. your first line 1 A 5 is lost. this was the cause of the trouble. change it n let me know.
Okay, let me try to give at least some idea of a simple starting point:
#include <iostream>
#include <iterator>
#include <vector>
#include <fstream>
struct rater {
std::vector<int> ratings;
rater() : ratings(6) {}
friend std::istream &operator>>(std::istream &is, rater &r) {
char movie;
is >> movie;
return is >> r.ratings[movie-'A'];
}
friend std::ostream &operator<<(std::ostream &os, rater const &r) {
for (int i=0; i<r.ratings.size(); i++) {
os << char(i + 'A') << ":" << r.ratings[i] << "\t";
}
return os;
}
};
int main() {
std::ifstream in("flix.txt");
std::vector<rater> ratings(5);
int i;
while (in >> i)
in >> ratings[i-1];
i=1;
for (auto r : ratings)
std::cout << i++ << "-> " << r << "\n";
}
Here's a bit of a clean up. It uses std::map to keep track of the Person and Movie keys, which is more flexible as textual strings of any kind (sans whitespace) can be used. You've added a comment saying you specifically want to list movies people didn't rate in their outputs - that can be done by using a std::set and ensuring each movie name encountered is inserted, then using an iteration over the set to guide lookups in each person's ratings: left as an exercise.
#include <iostream>
#include <string>
#include <fstream>
#include <sstream>
#include <map>
using namespace std;
typedef std::map<std::string, int> Movie_Ratings;
typedef std::map<std::string, Movie_Ratings> Persons_Movie_ratings;
int main()
{
if (!ifstream flix("flix.txt"))
{
std::cerr << "error opening input\n";
exit(1);
}
if (!ofstream flick("flix1.txt"))
{
std::cerr << "error opening output\n";
exit(1);
}
Persons_Movie_Ratings ratings;
std::string line;
while (getline(flix, line))
{
istringstream iss(line);
string person, movie;
int rating;
if (line >> person >> movie >> rating)
ratings[person][movie] = rating;
}
// input ratings into movie array
for (Persons_Movie_Ratings::const_iterator i = ratings.begin();
i != ratings.end(); ++i)
{
for (Movie_Ratings::const_iterator j = i->second.begin();
j != i->second.end(); ++j)
{
cout << i->first << ' ' << j->second << endl;
flick << i->first << ' ' << j->second << endl;
}
}
system("pause");
}