题解 | #字符的个数#

#include <iostream>
using namespace std;

int main() {
    // 字符串 并接受用户的输入
    string str;
    cin>>str;
    int countA,countB,countC; //定义并初始化三个计次变量
    countA = 0;
    countB = 0;
    countC = 0;
    // 开始遍历字符串
    for(int i = 0;i<str.length();i++){
        if(str[i]=='a'){countA++;}
        if(str[i]=='b'){countB++;}
        if(str[i]=='c'){countC++;}
    }
    // 输出
    cout<<countA<<" "<<countB<<" "<<countC;
}