Submission #1252321

#	Time	Username	Problem	Language	Result	Execution time	Memory
1252321		walrusramen21	Triple Peaks (IOI25_triples)	C++20	8.17 / 100	2092 ms	1864 KiB

triples

#include "triples.h"
#include <algorithm>
#include <array>
#include <iterator>

long long count_triples(std::vector<int> H) {
	int N = H.size();
	long long ans = 0;
	for (int i = 0; i < N; i++) {
		for (int j = i+1; j < N; j++) {
			for (int k = j+1; k < N; k++) {
				std::array<int, 3> a = {j-i, k-i, k-j};
				std::array<int, 3> b = {H[i], H[j], H[k]};
				std::sort(a.begin(), a.end());
				std::sort(b.begin(), b.end());
				if (a[0]==b[0] && a[1]==b[1] && a[2]==b[2]) ++ans;
			}
		}
	}
	return ans;
}

std::vector<int> construct_range(int M, int K) {
	return {1, 1, 2};
}

• Subtask 0: 0 / 0
• Subtask 1: 8 / 8
• Subtask 2: 0 / 6
• Subtask 3: 0 / 10
• Subtask 4: 0 / 11
• Subtask 5: 0 / 16
• Subtask 6: 0 / 19
• Subtask 7: 0.1667 / 5
• Subtask 8: 0.0025 / 5
• Subtask 9: 0.0001 / 5
• Subtask 10: 0 / 5
• Subtask 11: 0 / 5
• Subtask 12: 0 / 5