#include <algorithm>
#include <iostream>
int main() {
int a[7] = {1, 2, 3, 4, 5, 6, 7};
srand(time(NULL));
std::random_shuffle(std::begin(a), std::end(a));
for (int item : a) {
std::cout << item << " ";
}
std::cout << std::endl;
}
I2luY2x1ZGUgPGFsZ29yaXRobT4KI2luY2x1ZGUgPGlvc3RyZWFtPgoKaW50IG1haW4oKSB7CglpbnQgYVs3XSA9IHsxLCAyLCAzLCA0LCA1LCA2LCA3fTsKCQoJc3JhbmQodGltZShOVUxMKSk7CglzdGQ6OnJhbmRvbV9zaHVmZmxlKHN0ZDo6YmVnaW4oYSksIHN0ZDo6ZW5kKGEpKTsKCQoJZm9yIChpbnQgaXRlbSA6IGEpIHsKCQlzdGQ6OmNvdXQgPDwgaXRlbSA8PCAiICI7Cgl9CglzdGQ6OmNvdXQgPDwgc3RkOjplbmRsOwp9