Submission #967980

#	Time	Username	Problem	Language	Result	Execution time	Memory
967980		TAhmed33	Fireworks (APIO16_fireworks)	C++98	0 / 100	3 ms	7516 KiB

fireworks

#include <bits/stdc++.h>
using namespace std;
#define int long long
const int MAXN = 3e5 + 25;
vector <pair <int, int>> adj[MAXN];
int dp[MAXN], n, m;
void dfs (int pos) {
    for (auto j : adj[pos]) {
        dfs(j.first);
    }
    dp[pos] = 1e18;
    for (int i = 0; i <= 300; i++) {
        int sum = 0;
        for (auto j : adj[pos]) {
            sum += abs(i - j.second) + dp[j.first];
        }
        dp[pos] = min(dp[pos], sum);
    }
}
signed main () {
    cin >> n >> m;
    n += m;
    for (int i = 2; i <= n; i++) {
        int x, y; cin >> x >> y;
        adj[x].push_back({i, y});
    }
    dfs(1);
    cout << dp[1];
}

• Subtask 1: 0 / 7
• Subtask 2: 0 / 19
• Subtask 3: 0 / 29
• Subtask 4: 0 / 45