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Submission #793171

# Submission time Handle Problem Language Result Execution time Memory
793171 2023-07-25T15:06:24 Z ToniB Fireworks (APIO16_fireworks) C++17
0 / 100
 15 ms 524 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int MAXN = 505;

int n, m, L[MAXN], R[MAXN];
vector<pair<int, int> > adj[MAXN];
int walk[MAXN], dp[MAXN][MAXN];

void precalc(int node){
	for(pair<int, int> x : adj[node]){
		walk[x.first] = walk[node] + x.second;
		precalc(x.first);
	}
}

void dfs(int node){
	if(adj[node].empty()){
		for(int i = 0; i < MAXN; ++i) dp[node][i] = abs(i - walk[node]);
	}
	for(pair<int, int> x : adj[node]){
		dfs(x.first);
		for(int i = 0; i < MAXN; ++i){
			int mini = 1e9;
			for(int j = 0; j < MAXN; ++j){
				mini = min(mini, dp[x.first][j] + abs(i - j));
			}
			dp[node][i] += mini;
		}
	}
}

int main(){
	cin >> n >> m;
	for(int i = 1; i < n + m; ++i){
		int p, c;
		cin >> p >> c, --p;
		adj[p].push_back({i, c});
	}
	precalc(0);
	dfs(0);
	int ans = 1e9;
	for(int i = 0; i < MAXN; ++i) ans = min(ans, dp[0][i]);
	cout << ans;
	return 0;
}

Subtask #1
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 340 KB Output is correct
2 Correct 9 ms 396 KB Output is correct
3 Incorrect 15 ms 524 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 29.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 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 212 KB Output isn't correct
2 Halted 0 ms 0 KB -