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

    return 0;
}