题解 | #统计字符串中各字母字符对应的个数#

#include <cctype>
#include <iostream>
// write your code here......
#include <map>
using namespace std;

int main() {

    char str[100] = { 0 };
    cin.getline(str, sizeof(str));

    // write your code here......

    map<char,int> maps;
    for(int i=0; str[i]!='\0'; i++){
        if(isalpha(str[i])){
            maps[str[i]]++;
        }
    }
    for(auto it = maps.begin(); it != maps.end(); it++){
        cout << it->first << ":" << it->second <<endl;
    }

    return 0;
}