Question

It always comes out 0 and 0, I’m just trying to count the Gs and Cs (and non-Gs and Cs) in the string given by a user. I know this is a beginner problem, sorry about that 🙁

#include <iostream>
#include <string>
using namespace std;

int main()
{

int x = 0
int y = 0

string s;

cout << "Enter a sequence" << endl;
cin >> s;

for (int i = 0; i > 100; i++)
    if (s[i] == 'g' || s[i] == 'c')
        x += 1;
    else
        y += 1;

cout << x << endl;
cout << y << endl;

}

Answer 1

You do realise

for (int i = 0; i > 100; i++)

never runs, right?

You’re saying – “let i be 0… as long as i > 100 (lol – never) do something”.

You probably meant

for (int i = 0; i < s.size(); i++)

or you can use std::count_if.