Submission #1208821

#	Time	Username	Problem	Language	Result	Execution time	Memory
1208821		sula2	Nile (IOI24_nile)	C++20	Compilation error	0 ms	0 KiB

nile

#include <bits/stdc++.h>
#define all(a) a.begin(), a.end()
#define popcount(x) __builtin_popcountll(x)
using namespace std;
using namespace chrono;

long long solve(vector<int> W, vector<int> A,
                vector<int> B, int D) {
    int n = W.size();
    vector<int> ind(n);
    iota(all(ind), 0);
    sort(all(ind), [&](int i, int j) { return W[i] < W[j]; });
    vector<long long> dp(n);
    dp[0] = A[ind[0]];
    for (int i = 1; i < n; i++) {
        dp[i] = dp[i-1] + A[ind[i]];
        long long sum = 0;
        for (int j = i-1; j >= 0 && W[ind[i]] - W[ind[j]] <= D; j--) {
            dp[i] = min(dp[i], (j == 0 ? 0 : dp[j-1]) + B[ind[j]] + B[ind[i]] + sum);
            sum += A[ind[j]];
        }
    }
    return dp[n-1];
}

vector<long long> calculate_costs(
        vector<int> W, vector<int> A,
        vector<int> B, vector<int> E
        ) {
    int n = W.size(), q = E.size();
    vector<long long> res(q);
    for (int i = 0; i < q; i++) {
        res[i] = solve(W, A, B, E[i]);
    }
    return res;
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    for (auto x : calculate_costs({15, 12, 2, 10, 21},
    {5, 4, 5, 6, 3},
    {1, 2, 2, 3, 2},
    {5, 1, 9})) cout << x << "\n";
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccigVAbI.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cciGZrne.o:nile.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status