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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int A[5], N, i, j, k2, res;
  5. 	scanf("%d", &N);
  6.     res=0; k2=0;
  7.     for (i=0; i<4; i++){
  8.     	scanf("%d", &A[i]);
  9.     }
  10.     for (i=4; i<N; i++){
  11.     	scanf("%d", &A[4]);
  12.     	if (A[0]%2==0)
  13.     	   k2++;
  14.     	if (A[4]%2==0)
  15.     	   res=res+k2;
  16.     	else
  17.     	   res=res+i-4;
  18.     	for (j=0; j<4; j++){
  19.     		A[j] = A[j+1];
  20.     	}
  21.     }
  22.  
  23. printf("%d ", res);
  24. return 0;
  25. }
Success #stdin #stdout 0s 9424KB
comments (?)
stdin
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9 
5 3 7 8 4 2 12 36 3
stdout
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5
https://ideone.com/vuts5K
language:
C (gcc 8.3)
created:
4 years ago
visibility:
public

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