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Submission #495218

# Submission time Handle Problem Language Result Execution time Memory
495218 2021-12-18T06:49:21 Z Nalrimet Gift (IZhO18_nicegift) C++17
30 / 100
 2000 ms 524292 KB 
#include<bits/stdc++.h>

using namespace std;

const int N = 1e6 + 5;
const int inf = 1000000000;

#define F first
#define S second
#define pb push_back

priority_queue<pair<int, int>> q;

int n, k, a[N];
vector<int> v;
vector<vector<int>> ans;

int main() {

    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    cin >> n >> k;

    for(int i = 1; i <= n; ++i){
        cin >> a[i];
        q.push({a[i], i});
    }

    while(!q.empty()){
        if(q.size() < k){
            cout << -1;
            exit(0);
        }
        for(int i = 1; i <= k; ++i){
            v.push_back(q.top().S);
            q.pop();
        }
        ans.pb(v);
        for(int i = 0; i < k; ++i){
            a[v[i]]--;
            if(a[v[i]] != 0) q.push({a[v[i]], v[i]});
        }
        v.clear();
    }

    cout << ans.size() << '\n';

    for(auto to : ans){
        cout << 1 << ' ';
        for(auto to1 : to){
            cout << to1 << ' ';
        }
        cout << '\n';
    }

    return 0;

}

Compilation message

nicegift.cpp: In function 'int main()':
nicegift.cpp:32:21: warning: comparison of integer expressions of different signedness: 'std::priority_queue<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   32 |         if(q.size() < k){
      |            ~~~~~~~~~^~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB n=4
2 Correct 1 ms 204 KB n=3
3 Correct 0 ms 204 KB n=3
4 Correct 0 ms 204 KB n=4
5 Correct 0 ms 204 KB n=4
6 Correct 1 ms 328 KB n=2

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB n=4
2 Correct 1 ms 204 KB n=3
3 Correct 0 ms 204 KB n=3
4 Correct 0 ms 204 KB n=4
5 Correct 0 ms 204 KB n=4
6 Correct 1 ms 328 KB n=2
7 Correct 0 ms 204 KB n=5
8 Correct 1 ms 972 KB n=8
9 Correct 6 ms 1160 KB n=14
10 Correct 4 ms 972 KB n=11
11 Correct 28 ms 4412 KB n=50000
12 Correct 28 ms 4496 KB n=50000
13 Correct 20 ms 3392 KB n=10
14 Correct 23 ms 3020 KB n=685
15 Correct 27 ms 3328 KB n=623
16 Correct 16 ms 1924 KB n=973

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB n=4
2 Correct 1 ms 204 KB n=3
3 Correct 0 ms 204 KB n=3
4 Correct 0 ms 204 KB n=4
5 Correct 0 ms 204 KB n=4
6 Correct 1 ms 328 KB n=2
7 Correct 0 ms 204 KB n=5
8 Correct 1 ms 972 KB n=8
9 Correct 6 ms 1160 KB n=14
10 Correct 4 ms 972 KB n=11
11 Correct 28 ms 4412 KB n=50000
12 Correct 28 ms 4496 KB n=50000
13 Correct 20 ms 3392 KB n=10
14 Correct 23 ms 3020 KB n=685
15 Correct 27 ms 3328 KB n=623
16 Correct 16 ms 1924 KB n=973
17 Correct 21 ms 2512 KB n=989
18 Correct 10 ms 976 KB n=563
19 Correct 17 ms 1292 KB n=592
20 Correct 17 ms 1360 KB n=938
21 Correct 13 ms 1020 KB n=747
22 Correct 15 ms 1092 KB n=991

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2037 ms 524292 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB n=4
2 Correct 1 ms 204 KB n=3
3 Correct 0 ms 204 KB n=3
4 Correct 0 ms 204 KB n=4
5 Correct 0 ms 204 KB n=4
6 Correct 1 ms 328 KB n=2
7 Correct 0 ms 204 KB n=5
8 Correct 1 ms 972 KB n=8
9 Correct 6 ms 1160 KB n=14
10 Correct 4 ms 972 KB n=11
11 Correct 28 ms 4412 KB n=50000
12 Correct 28 ms 4496 KB n=50000
13 Correct 20 ms 3392 KB n=10
14 Correct 23 ms 3020 KB n=685
15 Correct 27 ms 3328 KB n=623
16 Correct 16 ms 1924 KB n=973
17 Correct 21 ms 2512 KB n=989
18 Correct 10 ms 976 KB n=563
19 Correct 17 ms 1292 KB n=592
20 Correct 17 ms 1360 KB n=938
21 Correct 13 ms 1020 KB n=747
22 Correct 15 ms 1092 KB n=991
23 Execution timed out 2037 ms 524292 KB Time limit exceeded
24 Halted 0 ms 0 KB -