代码

#include <string.h>
#include <stdio.h>

#define N (16 << (20 - 2))

int A[N];

int gg() {
	memset(A, 0x01, sizeof(A));
	int sum = 0;
	int x = 0;
	for (int i = 0; i < N / 4; i++) {
		sum += A[x];
		x = x + (1 << 19);
		x = x & (N - 1);
	}
return sum;
	//printf("%d\n", sum);
}


void sort(unsigned *a, int n) {
	a[0] = gg();
}

评测结果