题解

#include<bits/stdc++.h>
using namespace std;
int main(){
    string string;
    int Letters = 0 ,Digits = 0 ,Others = 0;
    getline(cin ,string);
    for (int i = 0 ; i <= string.size() - 2 ; i++){
    	if ((string[i] >= 'a' && string[i] <= 'z') || (string[i] >= 'A' && string[i] <= 'Z'))
    		Letters++;
    	else if (string[i] >= '0' && string[i] <= '9')
    		Digits++;
    	else
    		Others++;
	}
	printf("Letters=%d\nDigits=%d\nOthers=%d\n" ,Letters ,Digits ,Others);  //奇妙の输出
    return 0;
}