C求字符串中出现次数最多的数还有出现的次数

#include <stdio.h>
const int N = 1000000;
char ch[N];
int main(){
    gets(ch);
    int count[127]={0};
    for(int i=0; ch[i]; i++) count[ch[i]]++;
    int max = -1;
    char c;
    int sum = 0;
    for(int i=0; i<127; i++){
        if(count[i] > max){
            max = count[i];
            c = (char)i;
        }
    }
    for(int i = 0;ch[i]!='\0';i++){
        if(ch[i] == c) sum++;
    }
    printf("%c\n", c);
    printf("%d",sum);
    return 0;
}