| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 1303728 | JahonaliX | Arranging Shoes (IOI19_shoes) | C++20 | 19 ms | 1952 KiB |
#include "shoes.h"
long long count_swaps(std::vector<int> s) {
long long n = s.size();
n /= 2;
return n * (n - 1) / 2;
}
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