oj.uz

Submission #203930

# Submission time Handle Problem Language Result Execution time Memory
203930 2020-02-23T04:07:52 Z Segtree Fireworks (APIO16_fireworks) C++14
19 / 100
 24 ms 1144 KB 
#include<iostream>
#include<algorithm>
#include<vector>
using namespace std;
typedef long long ll;
#define chmin(a,b) a=min(a,b)
#define chmax(a,b) a=max(a,b)
#define rep(i,n) for(int i=0;i<n;i++)
#define mod 1000000007
#define mad(a,b) a=(a+b)%mod
#define N 310
ll n,m;
vector<pair<ll,ll> > g[N];
ll dp[N][N];
void dfs(ll x){
	if(x>n){
		rep(i,N)dp[x][i]=1e9;
		dp[x][0]=0;
		return;
	}
	rep(i,N)dp[x][i]=0;
	for(auto e:g[x]){
		dfs(e.first);
		rep(i,N){
			ll mi=1e9;
			for(int j=0;j<=i;j++){
				chmin(mi,dp[e.first][j]+abs((i-j)-e.second));
			}
			dp[x][i]+=mi;
		}
	}
}
int main(){
	cin>>n>>m;
	for(int i=2;i<=n+m;i++){
		ll p,c; cin>>p>>c;
		g[p].push_back(make_pair(i,c));
	}
	dfs(1);
	ll ans=1e17;
	rep(i,N){
		chmin(ans,dp[1][i]);
	}
	cout<<ans<<endl;
}

Subtask #1
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 376 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 5 ms 376 KB Output is correct
2 Correct 7 ms 504 KB Output is correct
3 Correct 8 ms 504 KB Output is correct
4 Correct 13 ms 504 KB Output is correct
5 Correct 12 ms 632 KB Output is correct
6 Correct 13 ms 632 KB Output is correct
7 Correct 14 ms 760 KB Output is correct
8 Correct 15 ms 760 KB Output is correct
9 Correct 17 ms 760 KB Output is correct
10 Correct 19 ms 892 KB Output is correct
11 Correct 19 ms 888 KB Output is correct
12 Correct 21 ms 1016 KB Output is correct
13 Correct 21 ms 1016 KB Output is correct
14 Correct 24 ms 1144 KB Output is correct
15 Correct 23 ms 1144 KB Output is correct
16 Correct 23 ms 1144 KB Output is correct
17 Correct 23 ms 1016 KB Output is correct
18 Correct 24 ms 1016 KB Output is correct
19 Correct 23 ms 1016 KB Output is correct

Subtask #3
0 / 29.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 45.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -