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Submission #767723

# Submission time Handle Problem Language Result Execution time Memory
767723 2023-06-27T05:48:42 Z Trunkty Gift (IZhO18_nicegift) C++14
49 / 100
 2000 ms 233512 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define int ll

int n,k,tot;
int arr[1000005];
map<int,vector<int>> vals;
multiset<int> s;
vector<vector<int>> ans;

signed main(){
    ios::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> n >> k;
    for(int i=1;i<=n;i++){
        cin >> arr[i];
        s.insert(arr[i]);
        vals[arr[i]].push_back(i);
        tot += arr[i];
    }
    if(tot%k!=0 or tot/k<(*prev(s.end()))){
        cout << -1 << "\n";
        return 0;
    }
    int lef=tot/k;
    s.insert(0);
    while((*prev(s.end()))>0){
        vector<int> v;
        auto it = s.end();
        for(int i=1;i<=k;i++){
            it--;
            v.push_back((*it));
        }
        for(int i:v){
            s.erase(s.find(i));
        }
        int torem = min(v.back(),lef-(*prev(s.end())));
        lef -= torem;
        vector<int> ps={torem};
        reverse(v.begin(),v.end());
        for(int i:v){
            int x = vals[i].back();
            vals[i].pop_back();
            ps.push_back(x);
            vals[i-torem].push_back(x);
            s.insert(i-torem);
        }
        ans.push_back(ps);
    }
    cout << ans.size() << "\n";
    for(vector<int> i:ans){
        for(int j:i){
            cout << j << " ";
        }
        cout << "\n";
    }
    return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB n=4
2 Correct 0 ms 212 KB n=3
3 Correct 1 ms 328 KB n=3
4 Correct 1 ms 212 KB n=4
5 Correct 1 ms 212 KB n=4
6 Correct 1 ms 376 KB n=2

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB n=4
2 Correct 0 ms 212 KB n=3
3 Correct 1 ms 328 KB n=3
4 Correct 1 ms 212 KB n=4
5 Correct 1 ms 212 KB n=4
6 Correct 1 ms 376 KB n=2
7 Correct 1 ms 328 KB n=5
8 Correct 1 ms 212 KB n=8
9 Correct 1 ms 328 KB n=14
10 Correct 1 ms 212 KB n=11
11 Correct 66 ms 7104 KB n=50000
12 Correct 38 ms 5736 KB n=50000
13 Correct 1 ms 336 KB n=10
14 Correct 1 ms 340 KB n=685
15 Correct 1 ms 340 KB n=623
16 Correct 1 ms 340 KB n=973

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB n=4
2 Correct 0 ms 212 KB n=3
3 Correct 1 ms 328 KB n=3
4 Correct 1 ms 212 KB n=4
5 Correct 1 ms 212 KB n=4
6 Correct 1 ms 376 KB n=2
7 Correct 1 ms 328 KB n=5
8 Correct 1 ms 212 KB n=8
9 Correct 1 ms 328 KB n=14
10 Correct 1 ms 212 KB n=11
11 Correct 66 ms 7104 KB n=50000
12 Correct 38 ms 5736 KB n=50000
13 Correct 1 ms 336 KB n=10
14 Correct 1 ms 340 KB n=685
15 Correct 1 ms 340 KB n=623
16 Correct 1 ms 340 KB n=973
17 Correct 2 ms 456 KB n=989
18 Correct 1 ms 340 KB n=563
19 Correct 1 ms 332 KB n=592
20 Correct 1 ms 340 KB n=938
21 Correct 1 ms 340 KB n=747
22 Correct 1 ms 340 KB n=991

Subtask #4
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 883 ms 112596 KB n=1000000
2 Correct 502 ms 74808 KB n=666666
3 Correct 257 ms 41460 KB n=400000
4 Correct 183 ms 29556 KB n=285714
5 Correct 10 ms 2384 KB n=20000
6 Correct 109 ms 18520 KB n=181818
7 Correct 6 ms 1364 KB n=10000
8 Correct 5 ms 984 KB n=6666
9 Correct 2 ms 724 KB n=4000
10 Correct 5 ms 980 KB n=2857
11 Correct 2 ms 468 KB n=2000

Subtask #5
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB n=4
2 Correct 0 ms 212 KB n=3
3 Correct 1 ms 328 KB n=3
4 Correct 1 ms 212 KB n=4
5 Correct 1 ms 212 KB n=4
6 Correct 1 ms 376 KB n=2
7 Correct 1 ms 328 KB n=5
8 Correct 1 ms 212 KB n=8
9 Correct 1 ms 328 KB n=14
10 Correct 1 ms 212 KB n=11
11 Correct 66 ms 7104 KB n=50000
12 Correct 38 ms 5736 KB n=50000
13 Correct 1 ms 336 KB n=10
14 Correct 1 ms 340 KB n=685
15 Correct 1 ms 340 KB n=623
16 Correct 1 ms 340 KB n=973
17 Correct 2 ms 456 KB n=989
18 Correct 1 ms 340 KB n=563
19 Correct 1 ms 332 KB n=592
20 Correct 1 ms 340 KB n=938
21 Correct 1 ms 340 KB n=747
22 Correct 1 ms 340 KB n=991
23 Correct 883 ms 112596 KB n=1000000
24 Correct 502 ms 74808 KB n=666666
25 Correct 257 ms 41460 KB n=400000
26 Correct 183 ms 29556 KB n=285714
27 Correct 10 ms 2384 KB n=20000
28 Correct 109 ms 18520 KB n=181818
29 Correct 6 ms 1364 KB n=10000
30 Correct 5 ms 984 KB n=6666
31 Correct 2 ms 724 KB n=4000
32 Correct 5 ms 980 KB n=2857
33 Correct 2 ms 468 KB n=2000
34 Correct 38 ms 5884 KB n=23514
35 Correct 33 ms 5748 KB n=23514
36 Correct 2 ms 468 KB n=940
37 Correct 0 ms 328 KB n=2
38 Correct 75 ms 10284 KB n=100000
39 Correct 64 ms 10304 KB n=100000
40 Correct 1 ms 212 KB n=10
41 Correct 1 ms 468 KB n=100
42 Correct 5 ms 1108 KB n=1000
43 Correct 1781 ms 233512 KB n=1000000
44 Execution timed out 2025 ms 214744 KB Time limit exceeded
45 Halted 0 ms 0 KB -