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I'm trying to make a function that takes the first and last letters of a string, divides them for the modulus and stores them in an array spot related to the modulus number. However I don't know how I would get the first and last letters of the string.
Assuming std::string str, you can use either:
str.front() and str.back() (C++11 and later only).
str[0] and str[str.size()-1], if str is not empty.
You can have the first letter of your string by just using yourString[0] and to get the last latter you can use yourString[yourString.size()-1]
EDIT
As said in the comments, assuming you're using std::string
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I have string that could come in several forms
“PSM000216556880035450088|TRF”
“VNM000216556880035450088|TRF FROM MACK”
“NXG000216556880035450088”
“Transfer from josh SL000216556880035450088 to jack”
“X00000216556880035450088 0098123 TRANSFER 789121”
I need a Regex pattern that could get the string that starts with PSM, VNM, NXG, SL00 or X00.
i.e. in 1, I need “PSM000216556880035450088”. This string is the reference and it is what I need. It can be found in any position in a sentence and sometimes the reference might not be separated from the other words by a space. Sometimes a special character can be used as a separator. i…e. in 2 “VNM000216556880035450088|TRF FROM MACK”.
I will be using the Regex in my VB.NET code.
What about this with multiline flag?
((?:PSM|VNM|NXG|(SL|X)00)\d+)
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I have a string stored in a variable - "Input_value:123_Output".
I want to split this string with underscore(_) and Double colon(:). So that the indexing of my output string will be like this : [0]-Input, [1]-value, [2]-123, [3]-Output.
Thanks!
Try splitting on the regex character class [:-]. This would split on either a colon or an underscore, which is the behavior you want.
In addition to [:-] looking like a smiley face, it is also very compact and easy to read.
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If I have two strings:
string str1 = "Something about the way that you walked into my living room";
string str2 = "Something about the way that you walked into my living room";
How do I write a function to return that these two strings are the same thing?
Firstly, you can replace multiple consecutive spaces with single space as given here
Replace multiple spaces with one space in a string
Then compare the strings
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Replace the two dots by code, which will return "over" from string yay to string variable over.
string yay = “semester almost over”;
string over = ..
Confused by the question, the previous q's used .find() and it was simple, this one isn't even compiling.
Not sure what it is that is not compiling for you, but this is what you want:
string over = yay.substr(yay.find("over"),4);
To break it down: yay.find("over") returns index of the first letter of "over" in 'yay', which is 16. yay.substr(16,4) extracts 4 characters from 'yay' starting at index 16.
string over = yay.find("over");
Does not work because yay.find does not return a string, it returns an index
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Hey I'm trying to make a function, the function its self finds the word with the highest score and then list that word, I'm currently using a vector to find the word with the highest score but I wish to get the word from my dictionary.
The vector you store your words in is a vector of std::string, and not a vector of Word pointers. So you can't use compare_by_score as it expects the latter kind of arguments and not the first.
Either store Word pointers in the vector, or change the compare_by_score function to take const std::string& arguments and then in the function convert it to Word objects.