oj.uz

Submission #700942

# Submission time Handle Problem Language Result Execution time Memory
700942 2023-02-19T13:05:20 Z Farbod Constellation 3 (JOI20_constellation3) C++17
35 / 100
 564 ms 524288 KB 
/*
*  In the name of God
*
*  Author: Farbod Doost
*  Last Modified: Sun, 19 Feb 2023 (16:27:05)
*
*/
#include <bits/stdc++.h>
using namespace std;

#pragma GCC optimize("Ofast")
//#pragma GCC optimize("no-stack-protector")
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("O3")
//#pragma GCC optimize("fast-math")
//#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")

const int N = 2e5 + 5;
const long long inf = 1e18;

int pw[N];

int n, m, a[N], dp[N][20];
long long s[N];
vector <pair <int, int>> adj[N];

vector <int> v;

int mx(int l, int r)
{
    if (a[dp[l][pw[r - l + 1]]] > a[dp[r - (1 << pw[r - l + 1]) + 1][pw[r - l + 1]]])
        return dp[l][pw[r - l + 1]];
    return dp[r - (1 << pw[r - l + 1]) + 1][pw[r - l + 1]];
}

int mn(int i, int x)
{
    int j = upper_bound(adj[i].begin(), adj[i].end(), make_pair(x + 1, 0)) - adj[i].begin();
    j--;

    if (j < 0)
        return 0;
    return adj[i][j].second;
}

void f(int l, int r, vector <long long> &ans)
{
    if (l > r) {
        for (int i = 0; i < v.size(); i++)
            ans.push_back(0);
        v.pop_back();

        return;
    }
    if (l == r) {
        for (int i = 0; i < v.size(); i++) 
            ans.push_back(s[l] - mn(l, v[i]));
        v.pop_back();

        return;
    }

    int mid = mx(l, r);

    vector <long long> ansL, ansR;
    v.push_back(a[mid]), f(l, mid - 1, ansL);
    v.push_back(a[mid]), f(mid + 1, r, ansR);

    for (int i = 0; i < v.size(); i++) {
        long long Ans = inf;

        Ans = min(Ans, ansL[i] + ansR.back() + s[mid]),
        Ans = min(Ans, ansL.back() + ansR[i] + s[mid]),
        Ans = min(Ans, ansL.back() + ansR.back() + s[mid] - mn(mid, v[i]));

        ans.push_back(Ans);
    }

    ansL.clear(), ansR.clear();

    v.pop_back();

    return;
}

signed main()
{
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);

    pw[1] = 0;
    for (int i = 2; i < N; i++)
        pw[i] = pw[i / 2] + 1;

    cin >> n;
    for (int i = 0; i < n; i++)
        cin >> a[i], dp[i][0] = i;

    for (int j = 1; j < 20; j++)
        for (int i = 0; i < n; i++) {
            if (a[dp[i][j - 1]] > a[dp[min(n - 1, i + (1 << (j - 1)))][j - 1]])
                dp[i][j] = dp[i][j - 1];
            else
                dp[i][j] = dp[min(n - 1, i + (1 << (j - 1)))][j - 1];
        }
                

    cin >> m;
    for (int i = 0; i < m; i++) {
        int x, y, c;
        cin >> x >> y >> c, x--;
        
        s[x] += c;
        adj[x].push_back({y, c});
    }

    for (int i = 0; i < n; i++) {
        sort(adj[i].begin(), adj[i].end());
        for (int j = 1; j < adj[i].size(); j++)
            adj[i][j].second = max(adj[i][j].second, adj[i][j - 1].second);
    }

    vector <long long> ans;

    v.push_back(n), f(0, n - 1, ans);

    cout << ans.back();

    return 0;
}

Compilation message

constellation3.cpp: In function 'void f(int, int, std::vector<long long int>&)':
constellation3.cpp:49:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   49 |         for (int i = 0; i < v.size(); i++)
      |                         ~~^~~~~~~~~~
constellation3.cpp:56:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |         for (int i = 0; i < v.size(); i++)
      |                         ~~^~~~~~~~~~
constellation3.cpp:69:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   69 |     for (int i = 0; i < v.size(); i++) {
      |                     ~~^~~~~~~~~~
constellation3.cpp: In function 'int main()':
constellation3.cpp:118:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  118 |         for (int j = 1; j < adj[i].size(); j++)
      |                         ~~^~~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5844 KB Output is correct
2 Correct 3 ms 5844 KB Output is correct
3 Correct 3 ms 5820 KB Output is correct
4 Correct 3 ms 5844 KB Output is correct
5 Correct 3 ms 5820 KB Output is correct
6 Correct 3 ms 5844 KB Output is correct
7 Correct 3 ms 5844 KB Output is correct
8 Correct 4 ms 5844 KB Output is correct
9 Correct 3 ms 5808 KB Output is correct
10 Correct 3 ms 5972 KB Output is correct
11 Correct 4 ms 5844 KB Output is correct
12 Correct 3 ms 5844 KB Output is correct
13 Correct 4 ms 5844 KB Output is correct
14 Correct 3 ms 5844 KB Output is correct
15 Correct 4 ms 5844 KB Output is correct
16 Correct 5 ms 5844 KB Output is correct
17 Correct 4 ms 5812 KB Output is correct
18 Correct 5 ms 5972 KB Output is correct
19 Correct 3 ms 5820 KB Output is correct
20 Correct 4 ms 5844 KB Output is correct
21 Correct 4 ms 5948 KB Output is correct
22 Correct 4 ms 5844 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5844 KB Output is correct
2 Correct 3 ms 5844 KB Output is correct
3 Correct 3 ms 5820 KB Output is correct
4 Correct 3 ms 5844 KB Output is correct
5 Correct 3 ms 5820 KB Output is correct
6 Correct 3 ms 5844 KB Output is correct
7 Correct 3 ms 5844 KB Output is correct
8 Correct 4 ms 5844 KB Output is correct
9 Correct 3 ms 5808 KB Output is correct
10 Correct 3 ms 5972 KB Output is correct
11 Correct 4 ms 5844 KB Output is correct
12 Correct 3 ms 5844 KB Output is correct
13 Correct 4 ms 5844 KB Output is correct
14 Correct 3 ms 5844 KB Output is correct
15 Correct 4 ms 5844 KB Output is correct
16 Correct 5 ms 5844 KB Output is correct
17 Correct 4 ms 5812 KB Output is correct
18 Correct 5 ms 5972 KB Output is correct
19 Correct 3 ms 5820 KB Output is correct
20 Correct 4 ms 5844 KB Output is correct
21 Correct 4 ms 5948 KB Output is correct
22 Correct 4 ms 5844 KB Output is correct
23 Correct 5 ms 6040 KB Output is correct
24 Correct 6 ms 6100 KB Output is correct
25 Correct 5 ms 5972 KB Output is correct
26 Correct 5 ms 6084 KB Output is correct
27 Correct 6 ms 6036 KB Output is correct
28 Correct 5 ms 6080 KB Output is correct
29 Correct 5 ms 5972 KB Output is correct
30 Correct 5 ms 6084 KB Output is correct
31 Correct 6 ms 6092 KB Output is correct
32 Correct 18 ms 10964 KB Output is correct
33 Correct 14 ms 8768 KB Output is correct
34 Correct 15 ms 8032 KB Output is correct
35 Correct 12 ms 7380 KB Output is correct
36 Correct 17 ms 6364 KB Output is correct
37 Correct 18 ms 6440 KB Output is correct
38 Correct 32 ms 6524 KB Output is correct
39 Correct 5 ms 6100 KB Output is correct
40 Correct 22 ms 12372 KB Output is correct
41 Correct 6 ms 6100 KB Output is correct
42 Correct 5 ms 6036 KB Output is correct
43 Correct 23 ms 12484 KB Output is correct
44 Correct 7 ms 6084 KB Output is correct

Subtask #3
0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5844 KB Output is correct
2 Correct 3 ms 5844 KB Output is correct
3 Correct 3 ms 5820 KB Output is correct
4 Correct 3 ms 5844 KB Output is correct
5 Correct 3 ms 5820 KB Output is correct
6 Correct 3 ms 5844 KB Output is correct
7 Correct 3 ms 5844 KB Output is correct
8 Correct 4 ms 5844 KB Output is correct
9 Correct 3 ms 5808 KB Output is correct
10 Correct 3 ms 5972 KB Output is correct
11 Correct 4 ms 5844 KB Output is correct
12 Correct 3 ms 5844 KB Output is correct
13 Correct 4 ms 5844 KB Output is correct
14 Correct 3 ms 5844 KB Output is correct
15 Correct 4 ms 5844 KB Output is correct
16 Correct 5 ms 5844 KB Output is correct
17 Correct 4 ms 5812 KB Output is correct
18 Correct 5 ms 5972 KB Output is correct
19 Correct 3 ms 5820 KB Output is correct
20 Correct 4 ms 5844 KB Output is correct
21 Correct 4 ms 5948 KB Output is correct
22 Correct 4 ms 5844 KB Output is correct
23 Correct 5 ms 6040 KB Output is correct
24 Correct 6 ms 6100 KB Output is correct
25 Correct 5 ms 5972 KB Output is correct
26 Correct 5 ms 6084 KB Output is correct
27 Correct 6 ms 6036 KB Output is correct
28 Correct 5 ms 6080 KB Output is correct
29 Correct 5 ms 5972 KB Output is correct
30 Correct 5 ms 6084 KB Output is correct
31 Correct 6 ms 6092 KB Output is correct
32 Correct 18 ms 10964 KB Output is correct
33 Correct 14 ms 8768 KB Output is correct
34 Correct 15 ms 8032 KB Output is correct
35 Correct 12 ms 7380 KB Output is correct
36 Correct 17 ms 6364 KB Output is correct
37 Correct 18 ms 6440 KB Output is correct
38 Correct 32 ms 6524 KB Output is correct
39 Correct 5 ms 6100 KB Output is correct
40 Correct 22 ms 12372 KB Output is correct
41 Correct 6 ms 6100 KB Output is correct
42 Correct 5 ms 6036 KB Output is correct
43 Correct 23 ms 12484 KB Output is correct
44 Correct 7 ms 6084 KB Output is correct
45 Correct 256 ms 33400 KB Output is correct
46 Correct 249 ms 33060 KB Output is correct
47 Correct 267 ms 32960 KB Output is correct
48 Correct 239 ms 33256 KB Output is correct
49 Correct 253 ms 32752 KB Output is correct
50 Correct 242 ms 32672 KB Output is correct
51 Correct 228 ms 32664 KB Output is correct
52 Correct 226 ms 33416 KB Output is correct
53 Correct 257 ms 33208 KB Output is correct
54 Runtime error 564 ms 524288 KB Execution killed with signal 9
55 Halted 0 ms 0 KB -