题解 | #字母统计#

#include<iostream>
#include<string.h>
#include<bits/stdc++.h>
using namespace std;

int main() {
    string str;
    int cnt[26];
    while (getline(cin, str)) {
        memset(cnt, 0, sizeof(cnt));
        for (int i = 0; i < str.length(); i++) {
            if (str[i] >= 'A' && str[i] <= 'Z') {
                cnt[str[i] - 'A']++;
            }
        }
        for (int i = 0; i < 26; i++) {
            cout << char('A' + i) << ':' << cnt[i] << endl;
        }
    }
}