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Submission #523461

# Submission time Handle Problem Language Result Execution time Memory
523461 2022-02-07T17:07:18 Z RaresFelix Gift (IZhO18_nicegift) C++17
49 / 100
 2000 ms 117008 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")

#define MN 1207171

using namespace std;
using ll = long long;

ll n, k, A[MN];
set<pair<ll, ll> > S;
vector<pair<ll, vector<ll>>> O;
int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cin >> n >> k;
    ll sum = 0;
    for(ll i = 1; i <= n; ++i)
        cin >> A[i], S.insert({A[i], i}), sum += A[i];
    if(S.rbegin()->first > sum / k || sum % k) {
        cout << "-1\n";
        return 0;
    }
    ll vmin, suma_ramasa, delta;
    vector<ll> PU;
    while(!S.empty()) {
        suma_ramasa = sum;
        for(ll i = 1; i <= k; ++i)
            PU.push_back(S.rbegin()->second), suma_ramasa -= S.rbegin()->first, S.erase(*S.rbegin());
        if(!S.empty())
            delta = min(A[PU.back()], sum / k - S.rbegin()->first);
        else delta = A[PU.back()];
        O.push_back({delta, PU});
        for(auto it : PU){
            A[it] -= delta;
            sum -= delta;
            if(A[it])
                S.insert({A[it], it});
        }
        PU.clear();
    }
    cout << O.size() << "\n";
    for(auto [c, v] : O) {
        cout << c << " ";
        for(auto it : v)
            cout << it << " ";
        cout << "\n";
    }
    return 0;
}

Compilation message

nicegift.cpp: In function 'int main()':
nicegift.cpp:24:8: warning: unused variable 'vmin' [-Wunused-variable]
   24 |     ll vmin, suma_ramasa, delta;
      |        ^~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB n=4
2 Correct 0 ms 204 KB n=3
3 Correct 1 ms 324 KB n=3
4 Correct 1 ms 320 KB n=4
5 Correct 0 ms 204 KB n=4
6 Correct 1 ms 320 KB n=2

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB n=4
2 Correct 0 ms 204 KB n=3
3 Correct 1 ms 324 KB n=3
4 Correct 1 ms 320 KB n=4
5 Correct 0 ms 204 KB n=4
6 Correct 1 ms 320 KB n=2
7 Correct 1 ms 204 KB n=5
8 Correct 1 ms 204 KB n=8
9 Correct 0 ms 320 KB n=14
10 Correct 1 ms 204 KB n=11
11 Correct 27 ms 5432 KB n=50000
12 Correct 35 ms 5192 KB n=50000
13 Correct 1 ms 204 KB n=10
14 Correct 1 ms 332 KB n=685
15 Correct 1 ms 332 KB n=623
16 Correct 1 ms 332 KB n=973

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB n=4
2 Correct 0 ms 204 KB n=3
3 Correct 1 ms 324 KB n=3
4 Correct 1 ms 320 KB n=4
5 Correct 0 ms 204 KB n=4
6 Correct 1 ms 320 KB n=2
7 Correct 1 ms 204 KB n=5
8 Correct 1 ms 204 KB n=8
9 Correct 0 ms 320 KB n=14
10 Correct 1 ms 204 KB n=11
11 Correct 27 ms 5432 KB n=50000
12 Correct 35 ms 5192 KB n=50000
13 Correct 1 ms 204 KB n=10
14 Correct 1 ms 332 KB n=685
15 Correct 1 ms 332 KB n=623
16 Correct 1 ms 332 KB n=973
17 Correct 1 ms 316 KB n=989
18 Correct 1 ms 320 KB n=563
19 Correct 1 ms 320 KB n=592
20 Correct 1 ms 316 KB n=938
21 Correct 1 ms 332 KB n=747
22 Correct 1 ms 332 KB n=991

Subtask #4
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 739 ms 114596 KB n=1000000
2 Correct 431 ms 64308 KB n=666666
3 Correct 253 ms 37888 KB n=400000
4 Correct 174 ms 28260 KB n=285714
5 Correct 15 ms 2128 KB n=20000
6 Correct 101 ms 16944 KB n=181818
7 Correct 5 ms 1228 KB n=10000
8 Correct 4 ms 840 KB n=6666
9 Correct 2 ms 588 KB n=4000
10 Correct 5 ms 624 KB n=2857
11 Correct 1 ms 460 KB n=2000

Subtask #5
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB n=4
2 Correct 0 ms 204 KB n=3
3 Correct 1 ms 324 KB n=3
4 Correct 1 ms 320 KB n=4
5 Correct 0 ms 204 KB n=4
6 Correct 1 ms 320 KB n=2
7 Correct 1 ms 204 KB n=5
8 Correct 1 ms 204 KB n=8
9 Correct 0 ms 320 KB n=14
10 Correct 1 ms 204 KB n=11
11 Correct 27 ms 5432 KB n=50000
12 Correct 35 ms 5192 KB n=50000
13 Correct 1 ms 204 KB n=10
14 Correct 1 ms 332 KB n=685
15 Correct 1 ms 332 KB n=623
16 Correct 1 ms 332 KB n=973
17 Correct 1 ms 316 KB n=989
18 Correct 1 ms 320 KB n=563
19 Correct 1 ms 320 KB n=592
20 Correct 1 ms 316 KB n=938
21 Correct 1 ms 332 KB n=747
22 Correct 1 ms 332 KB n=991
23 Correct 739 ms 114596 KB n=1000000
24 Correct 431 ms 64308 KB n=666666
25 Correct 253 ms 37888 KB n=400000
26 Correct 174 ms 28260 KB n=285714
27 Correct 15 ms 2128 KB n=20000
28 Correct 101 ms 16944 KB n=181818
29 Correct 5 ms 1228 KB n=10000
30 Correct 4 ms 840 KB n=6666
31 Correct 2 ms 588 KB n=4000
32 Correct 5 ms 624 KB n=2857
33 Correct 1 ms 460 KB n=2000
34 Correct 19 ms 3208 KB n=23514
35 Correct 19 ms 3272 KB n=23514
36 Correct 1 ms 448 KB n=940
37 Correct 1 ms 204 KB n=2
38 Correct 56 ms 9132 KB n=100000
39 Correct 66 ms 9108 KB n=100000
40 Correct 0 ms 204 KB n=10
41 Correct 1 ms 332 KB n=100
42 Correct 5 ms 460 KB n=1000
43 Correct 890 ms 116256 KB n=1000000
44 Execution timed out 2036 ms 117008 KB Time limit exceeded
45 Halted 0 ms 0 KB -