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  1. #include <stdio.h>
  2. #include<stdlib.h>
  3.  
  4.     int penalty_shoot(char* s){
  5.         int count=0,i=0;
  6.         while(s[i]!='\0'){
  7.            if(s[i]=='2')
  8.                 if(s[i+1]=='1')
  9.                     count++;
  10.         i++;
  11.         }
  12.         return count;
  13.     }
  14.  
  15.     int main() {
  16.         int t;
  17.         int i=0;
  18.         scanf("%d ",&t);           //t is for number of test cases.
  19.         while(t--){
  20.             char *str, c;
  21.             str = (char*)malloc(1*sizeof(char));
  22.             while(c = getc(stdin),c!='\n'&&c!=EOF)
  23.             {
  24.                 str[i] = c;
  25.                 i++;
  26.                 str=realloc(str,(i+1)*sizeof(char));
  27.             }
  28.             str[i] ='\0';
  29.             printf("%s\n",str);
  30.             printf("%d\n",penalty_shoot(str));
  31.  
  32.             free(str);
  33.             str=NULL;
  34.             i=0;
  35.         }
  36.         return 0;
  37.     }
Success #stdin #stdout 0s 4480KB
comments ()
stdin
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3
101201212110
10101
2120
stdout
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101201212110
2
10101
0
2120
1
https://ideone.com/8iHtPo
language:
C (gcc 8.3)
created:
6 years ago
visibility:
public

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