oj.uz

Submission #651942

# Submission time Handle Problem Language Result Execution time Memory
651942 2022-10-20T16:29:27 Z vovik Gift (IZhO18_nicegift) C++17
100 / 100
 1120 ms 108400 KB 
//I wrote this code 4 u today
#include <bits/stdc++.h>
 
#define vc vector
 
#define nd node*
#define pnd pair<nd, nd>
 
using namespace std;
typedef long long ll;
typedef vector<ll> vll;
typedef pair<ll, ll> pll;
typedef vc<pll> vpll;
typedef vc<vll> vvll;
typedef vc<vpll> vvpll;
 
template<const ll MOD>
struct mod_mul : std::multiplies<const ll> {
    ll operator()(const ll a, const ll b) {
        return (a * b) % MOD;
    }
};
 
 
template<typename T>
inline void sort(T &a) {
    sort(a.begin(), a.end());
}
 
template<typename T>
inline void unique(T &a) {
    a.resize(unique(a.begin(), a.end()) - a.begin());
}
 
template<typename T>
inline void reverse(T &a) {
    reverse(a.begin(), a.end());
}
 
const ll INF = 9023372036854775808ll;
const ll MOD = 1000000007ll;
 
#define int ll
 
int32_t main() {
    cin.tie(nullptr)->ios_base::sync_with_stdio(false);
    int n, k;
    cin >> n >> k;
    vc<ll> a(n);
    ll sm = 0, mx = 0;
    for (auto &i : a) cin >> i, sm += i, mx = max(mx, i);
    if (sm % k || mx > sm / k) return cout << "-1\n", 0;
    priority_queue<pair<int, int>> alive;
    for (int i = 0; i < n; ++i) if (a[i]) alive.emplace(a[i], i);
    vc<vc<int>> ans;
    while (!alive.empty()) {
        vc<int> inds(k);
        for (int i = k - 1; i >= 0; --i) inds[i] = alive.top().second, alive.pop();
        if (!a[inds.back()]) break;
        int d = min(sm / k - (alive.empty() ? 0 : alive.top().first), a[inds[0]]);
        ans.push_back({d});
        for (auto i : inds) ans.back().push_back(i + 1), a[i] -= d, alive.emplace(a[i], i);
        sm -= k * d;
    }
    cout << ans.size() << '\n';
    for (auto v : ans) {
        for (auto &i : v) cout << i << ' ';
        cout << '\n';
    }
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB n=4
2 Correct 1 ms 316 KB n=3
3 Correct 1 ms 212 KB n=3
4 Correct 1 ms 212 KB n=4
5 Correct 1 ms 320 KB n=4
6 Correct 1 ms 212 KB n=2

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB n=4
2 Correct 1 ms 316 KB n=3
3 Correct 1 ms 212 KB n=3
4 Correct 1 ms 212 KB n=4
5 Correct 1 ms 320 KB n=4
6 Correct 1 ms 212 KB n=2
7 Correct 1 ms 212 KB n=5
8 Correct 1 ms 212 KB n=8
9 Correct 1 ms 340 KB n=14
10 Correct 1 ms 316 KB n=11
11 Correct 23 ms 4124 KB n=50000
12 Correct 23 ms 3656 KB n=50000
13 Correct 1 ms 316 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 1 ms 320 KB n=4
2 Correct 1 ms 316 KB n=3
3 Correct 1 ms 212 KB n=3
4 Correct 1 ms 212 KB n=4
5 Correct 1 ms 320 KB n=4
6 Correct 1 ms 212 KB n=2
7 Correct 1 ms 212 KB n=5
8 Correct 1 ms 212 KB n=8
9 Correct 1 ms 340 KB n=14
10 Correct 1 ms 316 KB n=11
11 Correct 23 ms 4124 KB n=50000
12 Correct 23 ms 3656 KB n=50000
13 Correct 1 ms 316 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 316 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 526 ms 87104 KB n=1000000
2 Correct 300 ms 48636 KB n=666666
3 Correct 165 ms 27664 KB n=400000
4 Correct 116 ms 17756 KB n=285714
5 Correct 7 ms 1368 KB n=20000
6 Correct 70 ms 11500 KB n=181818
7 Correct 4 ms 852 KB n=10000
8 Correct 4 ms 724 KB n=6666
9 Correct 2 ms 540 KB n=4000
10 Correct 4 ms 724 KB n=2857
11 Correct 1 ms 340 KB n=2000

Subtask #5
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB n=4
2 Correct 1 ms 316 KB n=3
3 Correct 1 ms 212 KB n=3
4 Correct 1 ms 212 KB n=4
5 Correct 1 ms 320 KB n=4
6 Correct 1 ms 212 KB n=2
7 Correct 1 ms 212 KB n=5
8 Correct 1 ms 212 KB n=8
9 Correct 1 ms 340 KB n=14
10 Correct 1 ms 316 KB n=11
11 Correct 23 ms 4124 KB n=50000
12 Correct 23 ms 3656 KB n=50000
13 Correct 1 ms 316 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 316 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 526 ms 87104 KB n=1000000
24 Correct 300 ms 48636 KB n=666666
25 Correct 165 ms 27664 KB n=400000
26 Correct 116 ms 17756 KB n=285714
27 Correct 7 ms 1368 KB n=20000
28 Correct 70 ms 11500 KB n=181818
29 Correct 4 ms 852 KB n=10000
30 Correct 4 ms 724 KB n=6666
31 Correct 2 ms 540 KB n=4000
32 Correct 4 ms 724 KB n=2857
33 Correct 1 ms 340 KB n=2000
34 Correct 15 ms 2508 KB n=23514
35 Correct 15 ms 2468 KB n=23514
36 Correct 1 ms 320 KB n=940
37 Correct 1 ms 212 KB n=2
38 Correct 44 ms 5784 KB n=100000
39 Correct 39 ms 5896 KB n=100000
40 Correct 1 ms 324 KB n=10
41 Correct 1 ms 324 KB n=100
42 Correct 3 ms 468 KB n=1000
43 Correct 623 ms 98464 KB n=1000000
44 Correct 1120 ms 108400 KB n=1000000
45 Correct 710 ms 63644 KB n=666666
46 Correct 372 ms 38088 KB n=400000
47 Correct 13 ms 1108 KB n=2336
48 Correct 589 ms 54688 KB n=285714
49 Correct 530 ms 50912 KB n=181818
50 Correct 28 ms 3140 KB n=40000
51 Correct 14 ms 1644 KB n=20000
52 Correct 9 ms 1060 KB n=10000
53 Correct 52 ms 6064 KB n=6666
54 Correct 5 ms 596 KB n=4000
55 Correct 200 ms 20772 KB n=2857
56 Correct 3 ms 468 KB n=2000