#include "triples.h"
#include <vector>
#include <algorithm>
long long count_triples(std::vector<int> H) {
long long res = 0;
int n = H.size();
for (int i = 0; i < n; i++)
for (int j = i + 1; j < n; j++)
for (int k = j + 1; k < n; k++) {
std::vector<int> height = {H[i], H[j], H[k]};
std::vector<int> dist = {j - i, k - i, k - j};
std::sort(height.begin(), height.end());
std::sort(dist.begin(), dist.end());
if (height == dist) res++;
}
return res;
}
std::vector<int> construct_range(int M, int K) {
return {1, 1, 2}; // Đảm bảo hợp lệ: 3 phần tử, mỗi giá trị ∈ [1, N-1]
}
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