以下程序执行后控制台输出为（）
#include <stdio.h>
void g1(int *a, int n, int i){
while (2 * i <= n){
int j = 2 * i;
int v = a[j - 1];
if (j < n && v < a[j]){
v = a[j];
j += 1;
}
if (a[i - 1] < v){
int tmp = a[i - 1];
a[i - 1] = v;
a[j - 1] = tmp;
i = j;
} else{
break;
}
}
}
int g2(int *a, int n, int m){
int i;
for (i = n / 2; i > 0; --i)
g1(a, n, i);
for (i = 0; i < n && a[i] != m; ++i);
int j = 0;
for (++i; i > 0; i /= 2)
++j;
return j;
}
int main(int argc, char* argv[]){
int a[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
int n = sizeof(a) / sizeof(a[0]);
printf("%d", g2(a, n, 8));
return 0;
} 
