Question

How to input comma separated values having integers in c++?

Answer 1

If your list is something like this

1,2,501,69,48,153629,6666

you can do this algorithm

Read the entire line in a buffer

Separate in tokens by “,”

For each token, call atoi(token)

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

int main()

{

int array[1024];

int length=0;

char buffer[1024];

char *aux;

fgets(buffer,1023,stdin);

aux=strtok(buffer, ",");

while(aux)

{

array[length]=atoi(aux);

length++;

aux=strtok(NULL, ",");

}

for(int i=0;i<length;i++)

{

printf("%d ",array[i]);

}

}

This will read all your comma separated numbers and store them in an array of int and then print them.

I recommend learning about strtok() and atoi().

Btw, the program above works well in most cases, when it won’t work?

Answer 2

Answer:

How to input a comma separated string?

Get the string to be taken as input in stringstream.

Take each character of the string one by one from the stream.

Check if this character is a comma (', ').

If yes, then ignore that character.

Else, Insert this character in the vector which stores the words.

hope it helps you

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