제출 #418950

#제출 시각아이디문제언어결과실행 시간메모리
418950FlippenFazArranging Shoes (IOI19_shoes)C++14
0 / 100
22 ms1848 KiB
#include "shoes.h"
#include <bits/stdc++.h>

long long sum_to_N(long long inp) {
    return (inp*inp+1)/2;
}

long long count_swaps(std::vector<int> s) {
	
    return sum_to_N(s.size()/2-1);

}
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