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  1. #include <string.h>
  2. int main(){
  3.     char str[1000004];
  4.     scanf("%s",&str);
  5.     int arr[26]={0,};
  6.     int d =strlen(str);
  7.     for(int i=0;d>i;i++){
  8.         if((int)str[i]>96 && (int)str[i]<123)
  9.             arr[(int)str[i]-97]++;
  10.         else if((int)str[i]>64 && (int)str[i]<91)
  11.             arr[(int)str[i]-65]++;
  12.     }
  13.     char re="";
  14.     int j=0;
  15.     for(int i=0;26>i;i++){
  16.        if(arr[i]>j){
  17.            j=arr[i];
  18.            re=i+65;
  19.        }
  20.        else if(arr[i]==j)
  21.            re="?";
  22.     }
  23.     printf("%c\n",re);
  24.     return 0;
  25.  
  26. }
Success #stdin #stdout 0.01s 5308KB
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https://ideone.com/Cm88gw
language:
C (gcc 8.3)
created:
13 days ago
visibility:
public

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