求大佬解题，我在dev里面例题运行成功，但是提交却是无法编译

#include<iostream>
#include<cstdio>
#include<cstring>
using namespace std;
int main() {
	int nummber[26] = { 0 };//创建数组记录字母出现次数
	int max = 0;
	char s1[50];
	for (int i = 0; i < 4;i++) {//循环输入
		gets(s1);
		for (int j = 0; j < strlen(s1); j++) {
			if (s1[j] >= 'A'&&s1[j] <= 'Z')
				nummber[s1[j] - 'A']++;
		}
	}
	for (int i = 0; i < 26; i++) {
		if (nummber[i] >= max)
			max = nummber[i];
	}
	for (int i = max-1; i>=0 ; i--) {
		for (int j =0; j <26; j++) {
			if (i < nummber[j]) 
				cout << "*";
			else
				cout << " ";
		}
		cout << endl;
	}
	for (int i = 0; i < 26; i++)
		printf("%c", i + 'A');
}