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Submission #856133

# Submission time Handle Problem Language Result Execution time Memory
856133 2023-10-02T17:25:55 Z vjudge1 Sirni (COCI17_sirni) C++17
42 / 140
 5000 ms 15280 KB 
//author: Ahmet Alp Orakci
#include <bits/stdc++.h>
using namespace std;
using i64 = long long;

struct DSU {
    int n;
    vector <int> par;
    DSU(int n) : n(n) {
        par.resize(n);
        iota(par.begin(), par.end(), 0);
    }

    inline int get(int a) {
        return par[a] = (par[a] == a ? a : get(par[a]));
    }

    bool same(int u, int v) {
        return get(u) == get(v);
    }

    bool unite(int u, int v) {
        if(same(u, v))
            return false;

        par[get(u)] = get(v);
        return true;
    }
};

#define ONLINE_JUDGE
void solve() {
    int n;
    cin >> n;

    vector <int> vec(n);
    for(int &i : vec)
        cin >> i;
        
    priority_queue <tuple <int, int, int>, vector <tuple <int, int, int>>, greater <tuple <int, int, int>>> pq;
    for(int i = 0; i < n; i++)
        for(int j = i +1; j < n; j++)
            if(n <= int(1E3) || rand() % 1000 == 0) 
                pq.emplace(min(vec[i] % vec[j], vec[j] % vec[i]), i, j);

    i64 res = 0;
    DSU dsu(n);
    while(!pq.empty()) {
        auto [c, u, v] = pq.top();
        pq.pop();

        if(dsu.unite(u, v)) {
            res += c;
        }
    }

    cout << res;
    
    return;
}

signed main() {
    #ifndef ONLINE_JUDGE
        freopen(".in", "r", stdin);
        freopen(".out", "w", stdout);
    #endif

    ios_base::sync_with_stdio(false);
    cin.tie(NULL); cout.tie(NULL);

    int t = 1; //cin >> t;
    for(int i = 1; i <= t; i++) {
        solve();
    }

    return 0;
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 71 ms 7880 KB Output is correct
2 Correct 86 ms 8392 KB Output is correct
3 Correct 83 ms 7628 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 86 ms 8392 KB Output is correct
2 Correct 91 ms 7884 KB Output is correct
3 Correct 86 ms 8392 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 88 ms 6856 KB Output is correct
2 Correct 67 ms 7264 KB Output is correct
3 Correct 85 ms 7116 KB Output is correct

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5067 ms 13608 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 14.0

# Verdict Execution time Memory Grader output
1 Incorrect 710 ms 2496 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5097 ms 13852 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5075 ms 14552 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #8
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5007 ms 14144 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #9
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5062 ms 15280 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #10
0 / 14.0

# Verdict Execution time Memory Grader output
1 Incorrect 1411 ms 3592 KB Output isn't correct
2 Halted 0 ms 0 KB -