题解--都能看懂

#include <bits/stdc++.h>
using namespace std;
int zimu[101];
int main(){
char a;
while(cin >> a){
if(a >= 'a' && a <= 'z'){
a =a-32;
}
zimu[a - 'A'];
}
for(int i = 0; i <= 25; i){
if(zimu[i]>0){
cout << char(i + 'a') << ':' << zimu[i] << endl;
}
}
return 0;
}