oj.uz

답안 #739278

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
739278 2023-05-10T09:33:39 Z Alihan_8 Fireworks (APIO16_fireworks) C++17
19 / 100
 18 ms 1076 KB 
#include <bits/stdc++.h>

using namespace std;

#define all(x) x.begin(), x.end()
#define pb push_back
#define ln '\n'
#define int long long

template <class _T>
bool chmin(_T &x, const _T &y){
    bool flag = false;
    if ( x > y ){
        x = y; flag |= true;
    }
    return flag;
}

template <class _T>
bool chmax(_T &x, const _T &y){
    bool flag = false;
    if ( x < y ){
        x = y; flag |= true;
    }
    return flag;
}

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

    int n, m; cin >> n >> m;
    vector <pair<int,int>> g[n + m], op;
    for ( int i = 1; i < n + m; i++ ){
        int x, w; cin >> x >> w;
        g[--x].pb({i, w});
    }
    const int inf = 1e15 + 1, N = 3e2 + 1;
    vector <vector<int>> dp(N, vector <int> (N, inf));
    function <void(int)> dfs = [&](int x){
        if ( g[x].empty() ){
            dp[x][0] = 0;
            return;
        }
        for ( auto [to, w]: g[x] ){
            dfs(to);
        }
        for ( int i = 0; i < N; i++ ){
            dp[x][i] = 0;
            for ( auto [to, w]: g[x] ){
                int Mn = inf;
                for ( int t = 0; t <= i; t++ ){
                    chmin(Mn, abs(t - w) + dp[to][i - t]);
                }
                dp[x][i] = min(inf, dp[x][i] + Mn);
            }
        }
    };
    dfs(0);
    int Mn = inf;
    for ( int i = 0; i < N; i++ ){
        chmin(Mn, dp[0][i]);
    }
    cout << Mn;

    cout << '\n';
}

Subtask #1
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 980 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 3 ms 980 KB Output is correct
3 Correct 4 ms 980 KB Output is correct
4 Correct 6 ms 980 KB Output is correct
5 Correct 7 ms 980 KB Output is correct
6 Correct 7 ms 980 KB Output is correct
7 Correct 8 ms 964 KB Output is correct
8 Correct 10 ms 1044 KB Output is correct
9 Correct 10 ms 980 KB Output is correct
10 Correct 13 ms 1044 KB Output is correct
11 Correct 13 ms 1044 KB Output is correct
12 Correct 13 ms 1052 KB Output is correct
13 Correct 16 ms 984 KB Output is correct
14 Correct 15 ms 1076 KB Output is correct
15 Correct 17 ms 1052 KB Output is correct
16 Correct 18 ms 980 KB Output is correct
17 Correct 16 ms 980 KB Output is correct
18 Correct 16 ms 964 KB Output is correct
19 Correct 16 ms 1048 KB Output is correct

Subtask #3
0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 980 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 45.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 980 KB Output isn't correct
2 Halted 0 ms 0 KB -