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Submission #679849

# Submission time Handle Problem Language Result Execution time Memory
679849 2023-01-09T12:34:40 Z AnsarYesma Gift (IZhO18_nicegift) C++14
7 / 100
 2000 ms 524288 KB 
#include <bits/stdc++.h>
#define int long long
#define fi first
#define se second
using namespace std;
using ll = long long;
using pii = pair <int, int>;
#define pb push_back
const int maxN = 1e6 + 10;
const int maxOP = 3e6;
int n, k;
int a[maxN];
priority_queue <pii> PQ;

vector <vector <int>> e;
void Init(){
    cin >> n >> k;
    ll sum = 0;
    for (int i = 1; i <= n; ++i){
        cin >> a[i];
        sum += a[i];
        PQ.push({a[i], i});
    }
    if (sum % k || PQ.top().fi > sum / k){
        cout << -1; return;
    }
    while (sum){
        vector <int> pos;
        for (int j = 0; j < k; ++j){
            pos.pb(PQ.top().se);
            PQ.pop();
        }
        int add = a[pos.back()];
        // if (!PQ.empty()) add = min(add, sum / k - PQ.top().fi);
        sum -= add * k;
        e.pb({add});
        for (int j = 0; j < k; ++j){
            e.back().pb(pos[j]);
            a[pos[j]] -= add;
            PQ.push({a[pos[j]], pos[j]});
        }
    }
    cout << e.size() << "\n";
    for (auto &i: e){
        for (auto &j: i) cout << j << " ";
        cout << "\n";
    }
}

signed main() {
    Init();
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB n=4
2 Correct 0 ms 212 KB n=3
3 Correct 1 ms 312 KB n=3
4 Correct 1 ms 308 KB n=4
5 Correct 0 ms 312 KB n=4
6 Correct 0 ms 212 KB n=2

Subtask #2
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB n=4
2 Correct 0 ms 212 KB n=3
3 Correct 1 ms 312 KB n=3
4 Correct 1 ms 308 KB n=4
5 Correct 0 ms 312 KB n=4
6 Correct 0 ms 212 KB n=2
7 Correct 0 ms 308 KB n=5
8 Correct 0 ms 212 KB n=8
9 Runtime error 1671 ms 524288 KB Execution killed with signal 9
10 Halted 0 ms 0 KB -

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB n=4
2 Correct 0 ms 212 KB n=3
3 Correct 1 ms 312 KB n=3
4 Correct 1 ms 308 KB n=4
5 Correct 0 ms 312 KB n=4
6 Correct 0 ms 212 KB n=2
7 Correct 0 ms 308 KB n=5
8 Correct 0 ms 212 KB n=8
9 Runtime error 1671 ms 524288 KB Execution killed with signal 9
10 Halted 0 ms 0 KB -

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 828 ms 87080 KB n=1000000
2 Correct 578 ms 48616 KB n=666666
3 Correct 316 ms 27676 KB n=400000
4 Execution timed out 2094 ms 273584 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #5
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB n=4
2 Correct 0 ms 212 KB n=3
3 Correct 1 ms 312 KB n=3
4 Correct 1 ms 308 KB n=4
5 Correct 0 ms 312 KB n=4
6 Correct 0 ms 212 KB n=2
7 Correct 0 ms 308 KB n=5
8 Correct 0 ms 212 KB n=8
9 Runtime error 1671 ms 524288 KB Execution killed with signal 9
10 Halted 0 ms 0 KB -