Submission #1302040

#	Time	Username	Problem	Language	Result	Execution time	Memory
1302040		lunarecho	Arranging Shoes (IOI19_shoes)	C++20	0 / 100	1 ms	340 KiB

shoes

#include "shoes.h"
using namespace std;
long long count_swaps(std::vector<int> s) {
	long long n = (long long)s.size();
	return ((n-1)*(n-2))/2;
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 15