题解 | 字符的个数

#include<bits/stdc++.h>
#include <string>
using namespace std;
int main(){
    string s;
    cin>>s;
    // write your code here......
    int a_count = 0, b_count = 0, c_count;
    for (int i = 0; i < s.size(); i ++) {
        if (s[i] == 'a')
            a_count ++;
        else if (s[i] == 'b')
            b_count ++;
        else if (s[i] == 'c')
            c_count ++;
    }
    cout << a_count << " " << b_count << " " << c_count;
    return 0;
}