Submission #1290826

#	Time	Username	Problem	Language	Result	Execution time	Memory
1290826		ecen30	Triple Peaks (IOI25_triples)	C++20	Compilation error	0 ms	0 KiB

triples

//testing AI code
#include <vector>
#include <algorithm>
using namespace std;

// Count mythical triples (brute-force; only efficient for N ≤ 100)
long long count_triples(const std::vector<int>& H) {
    int N = H.size();
    long long result = 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::vector<int> dists = {j - i, k - i, k - j};
                std::vector<int> heights = {H[i], H[j], H[k]};
                std::sort(dists.begin(), dists.end());
                std::sort(heights.begin(), heights.end());
                if (dists == heights)
                    result++;
            }
        }
    }
    return result;
}

// Naive stub for range construction (Part II)
std::vector<int> construct_range(int M, int K) {
    int N = std::min(M, 10); // For testing, you can change this logic
    std::vector<int> H(N);
    for (int i = 0; i < N; ++i)
        H[i] = i + 1;
    return H;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccRiwGwq.o: in function `main':
grader.cpp:(.text.startup+0x367): undefined reference to `count_triples(std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status