代码

#include <algorithm>
void exchange(unsigned & x, unsigned & y) {
	unsigned t = x;
	x = y;
	y = t;
}
void sort(unsigned * a, int n) {
    for (int i = n - 1; i > 0; i--) {
        for (int j = 0; j < i; j++) {
            if (a[j] > a[j + 1]) {
                std::swap(a[j], a[j + 1]);
            }
        }
    }
}

评测结果