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  1. #include<stdio.h>
  2. int main()
  3. {
  4.     int t;
  5.     scanf("%d",&t);
  6.     while(t>0)
  7.     {
  8.         char st[4];
  9.         int ch,rep[100],count=0,i;
  10.         scanf("%s",&st);
  11.         for(i=0; i<4; i++)
  12.         {
  13.             ch=st[i];
  14.             if(rep[ch]==3)
  15.                 count=3;
  16.             else if(rep[ch]==2)
  17.                 count=2;
  18.             else if(rep[ch]==1)
  19.                 count=1;
  20.             else
  21.                 count=1;
  22.  
  23.             rep[ch]++;
  24.  
  25.         }
  26.         if(count==3)
  27.             printf("-1\n");
  28.         else if(count==2)
  29.             printf("6\n");
  30.         else if(count==1)
  31.             printf("4\n");
  32.         t--;
  33.     }
  34. }
Success #stdin #stdout 0.01s 5320KB
comments (?)
stdin 
3
0000
9876
3313
stdout 
4
4
4
https://ideone.com/2JgSKk
language:
C (gcc 8.3)
created:
6 days ago
visibility:
public

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