代码

# include <cstddef>
void sort(unsigned *a, int n) {
	for (int i = n - 1; i > 0; i--) {
        for (size_t j = 0; j < i; j++) {
            if (a[j] > a[j + 1]) {
            	unsigned u = a[j], v = a[j + 1];
            	asm volatile ("movl %3, 0(%0,%1,4)" : : "r"(a), "r"(j), "r"(u), "r"(v));
            	asm volatile ("movl %2, 4(%0,%1,4)" : : "r"(a), "r"(j), "r"(u), "r"(v));
            }
        }
    }
}

评测结果