oj.uz

Submission #409575

# Submission time Handle Problem Language Result Execution time Memory
409575 2021-05-21T05:44:30 Z tengiz05 Fireworks (APIO16_fireworks) C++17
19 / 100
 32 ms 696 KB 
#include <bits/stdc++.h>
using i64 = long long;
constexpr int N = 305;
int n, m;
std::vector<std::pair<int, int>> e[N];
int dp[N][N];
void dfs(int u){
    if (e[u].empty()) {
        dp[u][0] = 0;
        return;
    }
    for (auto [v, w] : e[u]) {
        dfs(v);
    }
    for (int i = 0; i < N; i++) {
        dp[u][i] = 0;
        for (auto [v, w] : e[u]) {
            int ans = 1e9;
            for (int t = 0; t <= i; t++) {
                ans = std::min(ans, abs(w - t) + dp[v][i - t]);
            }
            dp[u][i] += ans;
            dp[u][i] = std::min(dp[u][i], int(1e9));
        }
    }
}
int main(){
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
    std::cin >> n >> m;
    for (int i = 1; i < n + m; i++) {
        int p, w;
        std::cin >> p >> w;
        p--;
        e[p].emplace_back(i, w);
    }
    memset(dp, 0x3f, sizeof dp);
    dfs(0);
    int ans = 1e9;
    for (int i = 0; i < N; i++) {
        ans = std::min(ans, dp[0][i]);
    }
    std::cout << ans << '\n';
    return 0;
}

Subtask #1
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 588 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 588 KB Output is correct
2 Correct 3 ms 588 KB Output is correct
3 Correct 7 ms 580 KB Output is correct
4 Correct 10 ms 692 KB Output is correct
5 Correct 10 ms 588 KB Output is correct
6 Correct 9 ms 588 KB Output is correct
7 Correct 13 ms 692 KB Output is correct
8 Correct 12 ms 588 KB Output is correct
9 Correct 12 ms 692 KB Output is correct
10 Correct 20 ms 588 KB Output is correct
11 Correct 15 ms 692 KB Output is correct
12 Correct 17 ms 692 KB Output is correct
13 Correct 19 ms 692 KB Output is correct
14 Correct 25 ms 692 KB Output is correct
15 Correct 19 ms 588 KB Output is correct
16 Correct 32 ms 588 KB Output is correct
17 Correct 19 ms 672 KB Output is correct
18 Correct 19 ms 580 KB Output is correct
19 Correct 19 ms 696 KB Output is correct

Subtask #3
0 / 29.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 588 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 45.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 588 KB Output isn't correct
2 Halted 0 ms 0 KB -