题解 | #统计字符串中各字母字符对应的个数#

#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 & map : maps) {
        cout << map.first << ":" << map.second << endl;
    }


    return 0;
}