oj.uz

Submission #644420

# Submission time Handle Problem Language Result Execution time Memory
644420 2022-09-24T16:39:15 Z Do_you_copy Gift (IZhO18_nicegift) C++17
100 / 100
 1327 ms 108240 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 0 ms 212 KB n=4
2 Correct 0 ms 212 KB n=3
3 Correct 0 ms 212 KB n=3
4 Correct 0 ms 212 KB n=4
5 Correct 0 ms 212 KB n=4
6 Correct 0 ms 212 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 0 ms 212 KB n=3
4 Correct 0 ms 212 KB n=4
5 Correct 0 ms 212 KB n=4
6 Correct 0 ms 212 KB n=2
7 Correct 0 ms 212 KB n=5
8 Correct 0 ms 212 KB n=8
9 Correct 0 ms 212 KB n=14
10 Correct 0 ms 212 KB n=11
11 Correct 30 ms 3936 KB n=50000
12 Correct 23 ms 3528 KB n=50000
13 Correct 0 ms 212 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 0 ms 212 KB n=3
4 Correct 0 ms 212 KB n=4
5 Correct 0 ms 212 KB n=4
6 Correct 0 ms 212 KB n=2
7 Correct 0 ms 212 KB n=5
8 Correct 0 ms 212 KB n=8
9 Correct 0 ms 212 KB n=14
10 Correct 0 ms 212 KB n=11
11 Correct 30 ms 3936 KB n=50000
12 Correct 23 ms 3528 KB n=50000
13 Correct 0 ms 212 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 1 ms 340 KB n=989
18 Correct 1 ms 340 KB n=563
19 Correct 1 ms 340 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 811 ms 73476 KB n=1000000
2 Correct 545 ms 39424 KB n=666666
3 Correct 304 ms 22076 KB n=400000
4 Correct 207 ms 13700 KB n=285714
5 Correct 14 ms 1096 KB n=20000
6 Correct 132 ms 9216 KB n=181818
7 Correct 7 ms 724 KB n=10000
8 Correct 6 ms 572 KB n=6666
9 Correct 3 ms 468 KB n=4000
10 Correct 5 ms 596 KB n=2857
11 Correct 2 ms 340 KB n=2000

Subtask #5
51.0 / 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 0 ms 212 KB n=3
4 Correct 0 ms 212 KB n=4
5 Correct 0 ms 212 KB n=4
6 Correct 0 ms 212 KB n=2
7 Correct 0 ms 212 KB n=5
8 Correct 0 ms 212 KB n=8
9 Correct 0 ms 212 KB n=14
10 Correct 0 ms 212 KB n=11
11 Correct 30 ms 3936 KB n=50000
12 Correct 23 ms 3528 KB n=50000
13 Correct 0 ms 212 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 1 ms 340 KB n=989
18 Correct 1 ms 340 KB n=563
19 Correct 1 ms 340 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 811 ms 73476 KB n=1000000
24 Correct 545 ms 39424 KB n=666666
25 Correct 304 ms 22076 KB n=400000
26 Correct 207 ms 13700 KB n=285714
27 Correct 14 ms 1096 KB n=20000
28 Correct 132 ms 9216 KB n=181818
29 Correct 7 ms 724 KB n=10000
30 Correct 6 ms 572 KB n=6666
31 Correct 3 ms 468 KB n=4000
32 Correct 5 ms 596 KB n=2857
33 Correct 2 ms 340 KB n=2000
34 Correct 18 ms 2320 KB n=23514
35 Correct 20 ms 2404 KB n=23514
36 Correct 1 ms 340 KB n=940
37 Correct 0 ms 212 KB n=2
38 Correct 53 ms 5820 KB n=100000
39 Correct 62 ms 5764 KB n=100000
40 Correct 0 ms 212 KB n=10
41 Correct 1 ms 312 KB n=100
42 Correct 3 ms 468 KB n=1000
43 Correct 937 ms 98492 KB n=1000000
44 Correct 1327 ms 108240 KB n=1000000
45 Correct 934 ms 63764 KB n=666666
46 Correct 490 ms 38096 KB n=400000
47 Correct 10 ms 1108 KB n=2336
48 Correct 650 ms 54636 KB n=285714
49 Correct 568 ms 50820 KB n=181818
50 Correct 53 ms 3120 KB n=40000
51 Correct 22 ms 1600 KB n=20000
52 Correct 12 ms 1104 KB n=10000
53 Correct 49 ms 5936 KB n=6666
54 Correct 6 ms 616 KB n=4000
55 Correct 189 ms 20864 KB n=2857
56 Correct 4 ms 452 KB n=2000