+ 3

How there is a output 14?

int f(int*a,int n) { if(n<=0) return 0; else if(*a%2==0) return *a + f(a+1,n-1); else return *a - f(a+1,n-1); } int main(){ int a[] = {12,7,5}; printf("%i",f(a,3)); }

12th Jun 2019, 7:39 AM
Pragati Khodave
Pragati Khodave - avatar
1 Resposta
+ 5
You're calling f() with int *a = 12 and n = 3. f(12, 3) n <= 0 ? false *a % 2 == 0? true => return 12 + f(13, 2) f(13, 2) n <= 0 ? false *a % 2 == 0? false => return 13 - f(14, 1) f(14, 1) n <= 0 ? false *a % 2 == 0? true => return 14 + f(15, 0) f(15, 0) n <= 0 ? true => return 0 ==> return 14 + 0 = 14
12th Jun 2019, 7:49 AM
Anna
Anna - avatar