Problem with appending words with letter A to file text c++ - c++

Question

So basically I want to find in my text file "NAPIS.txt" every line which has 2 letter "A" in it and then append number of these lines and lines themselves to new text file "wynika.txt". For some reason these lines append multiple times and there is too much of them.
here is code:
#include <iostream>
#include<vector>
#include<fstream>
using namespace std;
vector <string> t;
int main()
{
ifstream plikwe("NAPIS.txt");
ofstream pliwky_a("wynika.txt");
ofstream pliwky_b("wynikb.txt");
string temp;
int licz=0;
int licznik=0;
while(!plikwe.eof())
{
plikwe>>temp;
t.push_back(temp);
}
for(int i=0;i<t.size()-1;i++)
{
cout<<t[i]<<endl;
}
for(int i=0;i<t.size()-1;i++)
{
licz=0;
for(int j=0;j<t[i].size();j++)
{
if(t[i].at(j)=='A')
{
licz++;
}
if(licz==2)
{
licznik++;
pliwky_a<<t[i]<<endl;
}
}
}
pliwky_a<<licznik<<endl;
cout<<licznik<<endl;
return 0;
}
NAPIS text file
wynika text file

Answer 1

The below given complete working example shows what you want. It reads "NAPIS.txt" line by line and then checks if that line contains the character 'A' exactly 2 times or not. If the the line just read contains the character 'A' exactly 2 times then that line with corresponding line number is written to "wynika.txt" .
#include <iostream>
#include <fstream>
#include <algorithm>
int main()
{
std::ifstream inputFile("NAPIS.txt");
std::string line; //this will be used to read the line from the file
int currentLineNum = 0;//this will be used to write the current line number and write in output file
if(inputFile)
{
std::ofstream outputFile("wynika.txt");
while(std::getline(inputFile, line, '\n'))//read into line
{
++currentLineNum;
//check if line contains 2 'A' or not.
if(std::count(line.begin(), line.end(), 'A') == 2)
{
//std::cout<<"A found"<<std::endl;
//write the line number into wynika.txt
outputFile << currentLineNum << ' '; //you can skip this if you don't want to write the line number into the output file
//write the line into wynika.txt
outputFile << line << '\n';
}
}
//dont forget to close the file
outputFile.close();
}
else
{
std::cout<<"Input file cannot be opened"<<std::endl;
}
inputFile.close();
return 0;
}
The output of the above program can be seen here.
If you don't want to write the line number then you can comment(that is remove) the statement:
outputFile << currentLineNum << ' ';
from the above code.