| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 520976 | szekelymilan | Arranging Shoes (IOI19_shoes) | C++14 | 20 ms | 1740 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "shoes.h"
long long count_swaps(std::vector<int> s) {
int n = s.size() / 2;
if (n == 1) return s[0] > 0;
return n * (n - 1) / 2;
}
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