oj.uz

Submission #1060407

# Submission time Handle Problem Language Result Execution time Memory
1060407 2024-08-15T13:56:42 Z Jarif_Rahman Gift (IZhO18_nicegift) C++17
7 / 100
 321 ms 70316 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n, k; cin >> n >> k;
    vector<ll> A(n);
    for(ll &x: A) cin >> x;
    priority_queue<pair<ll, int>> pq;
    for(int i = 0; i < n; i++) pq.push({A[i], i});

    vector<pair<ll, vector<int>>> ans;
    while(pq.size() >= k){
        vector<int> cur;
        for(int i = 0; i < k; i++) cur.push_back(pq.top().second), pq.pop();
        ll lim = 0;
        //if(!pq.empty()) lim = pq.top().first-1;
        ll mn = 1e18+5;
        for(int x: cur) mn = min(mn, A[x]-lim);
        for(int x: cur) A[x]-=mn;
        ans.push_back({mn, cur});
        for(int x: cur) if(A[x]) pq.push({A[x], x});
    }

    if(pq.size() != 0){
        cout << "-1\n";
        exit(0);
    }
    cout << ans.size() << "\n";
    for(auto [x, v]: ans){
        cout << x << " ";
        for(int i: v) cout << i+1 << " ";
        cout << "\n";
    }
}

Compilation message

nicegift.cpp: In function 'int main()':
nicegift.cpp:15:21: warning: comparison of integer expressions of different signedness: 'std::priority_queue<std::pair<long long int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   15 |     while(pq.size() >= k){
      |           ~~~~~~~~~~^~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB n=4
2 Correct 0 ms 348 KB n=3
3 Correct 0 ms 348 KB n=3
4 Correct 0 ms 348 KB n=4
5 Correct 0 ms 348 KB n=4
6 Correct 0 ms 344 KB n=2

Subtask #2
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB n=4
2 Correct 0 ms 348 KB n=3
3 Correct 0 ms 348 KB n=3
4 Correct 0 ms 348 KB n=4
5 Correct 0 ms 348 KB n=4
6 Correct 0 ms 344 KB n=2
7 Correct 1 ms 344 KB n=5
8 Correct 0 ms 344 KB n=8
9 Incorrect 0 ms 348 KB Jury has the answer but participant has not
10 Halted 0 ms 0 KB -

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB n=4
2 Correct 0 ms 348 KB n=3
3 Correct 0 ms 348 KB n=3
4 Correct 0 ms 348 KB n=4
5 Correct 0 ms 348 KB n=4
6 Correct 0 ms 344 KB n=2
7 Correct 1 ms 344 KB n=5
8 Correct 0 ms 344 KB n=8
9 Incorrect 0 ms 348 KB Jury has the answer but participant has not
10 Halted 0 ms 0 KB -

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 321 ms 70316 KB n=1000000
2 Correct 204 ms 48156 KB n=666666
3 Correct 116 ms 26300 KB n=400000
4 Incorrect 61 ms 17092 KB Jury has the answer but participant has not
5 Halted 0 ms 0 KB -

Subtask #5
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB n=4
2 Correct 0 ms 348 KB n=3
3 Correct 0 ms 348 KB n=3
4 Correct 0 ms 348 KB n=4
5 Correct 0 ms 348 KB n=4
6 Correct 0 ms 344 KB n=2
7 Correct 1 ms 344 KB n=5
8 Correct 0 ms 344 KB n=8
9 Incorrect 0 ms 348 KB Jury has the answer but participant has not
10 Halted 0 ms 0 KB -