题解 | #统计字符串中各字母字符对应的个数#

#include <iostream>
#include <map>
// write your code here......

using namespace std;

int main() {

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

    // write your code here......
    map<char, int> mp;
    for (int i = 0; str[i] != '\0'; i++) {
        mp[str[i]]++;
    }
    for (auto& kv: mp) {
        if (!isalpha(kv.first)) continue;
        cout<<kv.first<<":"<<kv.second<<endl;
    }

    return 0;
}