oj.uz

Submission #543062

# Submission time Handle Problem Language Result Execution time Memory
543062 2022-03-29T03:13:56 Z amunduzbaev Fireworks (APIO16_fireworks) C++17
26 / 100
 26 ms 1144 KB 
#include "bits/stdc++.h"
using namespace std;

#define ar array
#define int long long
const int N = 305;
const int inf = 1e18;
vector<ar<int, 2>> edges[N];
int dp[N][N];

void dfs(int u){
	for(auto x : edges[u]){
		dfs(x[0]);
		for(int j=0;j<N;j++){
			int pre = dp[u][j]; dp[u][j] = inf;
			for(int l=0;l<=j;l++){
				dp[u][j] = min(dp[u][j], pre + dp[x[0]][l] + abs(j - l - x[1]));
			}
		}
	}
	
	if(edges[u].empty()){
		memset(dp[u], 63, sizeof dp[u]);
		dp[u][0] = 0;
	}
}

signed main(){
	ios::sync_with_stdio(0); cin.tie(0); 

	int n, m; cin>>n>>m;
	for(int i=1;i<n+m;i++){
		int p, c; cin>>p>>c;
		edges[--p].push_back({i, c});
	}
	
	if(n == 1){
		sort(edges[0].begin(), edges[0].end(), [&](auto& a, auto& b){
			return a[1] < b[1];
		});
		
		int C = edges[0][m / 2][1];
		long long res = 0;
		for(auto x : edges[0]) res += abs(C - x[1]);
		cout<<res<<"\n";
		return 0;
	}
	
	dfs(0);
	int i = 1;
	while(i < N && dp[0][i] <= dp[0][i-1]) i++;
	cout<<dp[0][i-1]<<"\n";
	while(i < N && dp[0][i] > dp[0][i-1]) i++;
	assert(i == N);
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 3 ms 340 KB Output is correct
3 Correct 4 ms 460 KB Output is correct
4 Correct 6 ms 468 KB Output is correct
5 Correct 8 ms 596 KB Output is correct
6 Correct 9 ms 592 KB Output is correct
7 Correct 10 ms 596 KB Output is correct
8 Correct 12 ms 744 KB Output is correct
9 Correct 12 ms 724 KB Output is correct
10 Correct 13 ms 724 KB Output is correct
11 Correct 16 ms 852 KB Output is correct
12 Correct 17 ms 840 KB Output is correct
13 Correct 17 ms 920 KB Output is correct
14 Correct 26 ms 1000 KB Output is correct
15 Correct 20 ms 980 KB Output is correct
16 Correct 20 ms 1052 KB Output is correct
17 Correct 19 ms 980 KB Output is correct
18 Correct 22 ms 960 KB Output is correct
19 Correct 20 ms 1144 KB Output is correct

Subtask #3
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 3 ms 340 KB Output is correct
13 Correct 4 ms 460 KB Output is correct
14 Correct 6 ms 468 KB Output is correct
15 Correct 8 ms 596 KB Output is correct
16 Correct 9 ms 592 KB Output is correct
17 Correct 10 ms 596 KB Output is correct
18 Correct 12 ms 744 KB Output is correct
19 Correct 12 ms 724 KB Output is correct
20 Correct 13 ms 724 KB Output is correct
21 Correct 16 ms 852 KB Output is correct
22 Correct 17 ms 840 KB Output is correct
23 Correct 17 ms 920 KB Output is correct
24 Correct 26 ms 1000 KB Output is correct
25 Correct 20 ms 980 KB Output is correct
26 Correct 20 ms 1052 KB Output is correct
27 Correct 19 ms 980 KB Output is correct
28 Correct 22 ms 960 KB Output is correct
29 Correct 20 ms 1144 KB Output is correct
30 Runtime error 1 ms 468 KB Execution killed with signal 11
31 Halted 0 ms 0 KB -

Subtask #4
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 3 ms 340 KB Output is correct
13 Correct 4 ms 460 KB Output is correct
14 Correct 6 ms 468 KB Output is correct
15 Correct 8 ms 596 KB Output is correct
16 Correct 9 ms 592 KB Output is correct
17 Correct 10 ms 596 KB Output is correct
18 Correct 12 ms 744 KB Output is correct
19 Correct 12 ms 724 KB Output is correct
20 Correct 13 ms 724 KB Output is correct
21 Correct 16 ms 852 KB Output is correct
22 Correct 17 ms 840 KB Output is correct
23 Correct 17 ms 920 KB Output is correct
24 Correct 26 ms 1000 KB Output is correct
25 Correct 20 ms 980 KB Output is correct
26 Correct 20 ms 1052 KB Output is correct
27 Correct 19 ms 980 KB Output is correct
28 Correct 22 ms 960 KB Output is correct
29 Correct 20 ms 1144 KB Output is correct
30 Runtime error 1 ms 468 KB Execution killed with signal 11
31 Halted 0 ms 0 KB -