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  1. #include<stdio.h>
  2. int f(int *a, int n){
  3. if(n<=0) return 0;
  4. else if (*a%2==0) return *a+f(a+1, n-1);
  5. else return *a-f(a+1, n-1);
  6.  
  7. }
  8. int main(){
  9. int a[]={12, 7, 13, 4, 11, 6};
  10. printf("\n%d\n", f(a,6));
  11. return 0;
  12. }
Success #stdin #stdout 0s 4300KB
stdin
Standard input is empty
stdout
15