oj.uz

답안 #513747

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
513747 2022-01-17T13:42:27 Z Aktan 바이오칩 (IZhO12_biochips) C++14
100 / 100
 341 ms 404048 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
#define ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
#define ft first
#define sc second
using namespace std;
const int mod=1e9+7,INF=1e9+7;

vector<int> v[200005];
int a[200005],b[200005],d[200005];
int tout[200005],dp[200005][505],tin=1;
void dfs(int x){
	int y=tin;
	for(auto w : v[x]){
		dfs(w);
	}
	d[tin]=b[x];
	tout[tin++]=y;
}
main(){
	int n,m;
	cin >> n >> m;
	for(int i=1;i<=n;++i){
		cin >> a[i] >> b[i];
		v[a[i]].push_back(i);
	}
	dfs(0);
	for(int i=0;i<=n;++i){
		for(int j=1;j<=m;++j){
			dp[i][j]=-INF;
		}
	}
	
	for(int i=1;i<=n;i++){
		for(int j=1;j<=m;j++){
			dp[i][j]=max(dp[i-1][j],dp[tout[i]-1][j-1]+d[i]);
		}
	}
	cout << dp[n][m];
}

Compilation message

biochips.cpp:22:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   22 | main(){
      | ^~~~

Subtask #1
100.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 4940 KB Output is correct
2 Correct 4 ms 4940 KB Output is correct
3 Correct 3 ms 5196 KB Output is correct
4 Correct 16 ms 22808 KB Output is correct
5 Correct 16 ms 25004 KB Output is correct
6 Correct 17 ms 25036 KB Output is correct
7 Correct 230 ms 301372 KB Output is correct
8 Correct 246 ms 301420 KB Output is correct
9 Correct 279 ms 365956 KB Output is correct
10 Correct 341 ms 404048 KB Output is correct