题解 | #字符的个数#

#include<bits/stdc++.h>
using namespace std;
int main(){
    string s;
    cin>>s;
    // write your code here......
    int count_a=0;
    int count_b=0;
    int count_c=0;
    int i=0;
    while(s[i]!='\0')
    {
        switch(s[i])  
        {
            case 'a':
            count_a+=1;
            break;
             case 'b':
            count_b+=1;
            break;
             case 'c':
            count_c+=1;
            break;
        } 
        i+=1;  
    }
    cout<<count_a<<" "<<count_b<<" "<<count_c;

    return 0;
}