oj.uz

답안 #847454

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
847454 2023-09-09T16:32:22 Z Lib 봉쇄 시간 (IOI23_closing) C++17
0 / 100
 74 ms 16572 KB 
#include "closing.h"
#include <bits/stdc++.h>
using namespace std;
long long pos[200003];
long long cost1[200003];
long long cost2[200003];
long long pfx1[200003];
long long pfx2[200003];
long long check[200003];
long long maxroll[200003]; //maxroll[i]=a <==> de "tra no" 1 khoang toi da =a, can rollback it nhat i vi tri tu loai 1 xuong loai 0
long long minupd[200003]; //minupt[i]=k <==> voi 1 budget<=i; upgrade duoc toi da k vi tri tu loai 1 len loai 2
struct cus{
bool operator()(const long long &x, const long long &y){
	return x>y;
}
};
int max_score(int N, int X, int Y, long long K, std::vector<int> U, std::vector<int> V, std::vector<int> W)
{
	int n=N;
	int x=X;
	int y=Y;
	long long k=K;
	cin>>x>>y>>k;
	for(int i=0;i<n-1;i++){
		cin>>U[i]>>V[i]>>W[i];
		pos[i+1]=pos[i]+W[i];
	}
	for(int i=0;i<n;i++){
		cost1[i]=min(abs(pos[i]-pos[x]),abs(pos[i]-pos[y]));
		cost2[i]=max(abs(pos[i]-pos[x]),abs(pos[i]-pos[y]))-cost1[i];
		pfx1[i+1]=pfx1[i]+cost1[i];
	}
	priority_queue <pair <long long,int> > pq;
	long long mcost=k;
	//case 1: chi nang cap cac dinh len toi da 1
	for(int i=0;i<n;i++){
		pq.push({-cost1[i],i});
	}
	long long ans=0;
	while(mcost>0&&!pq.empty()){
		mcost+=pq.top().first;
		ans++;
		pq.pop();
	}
	if(mcost<0){
		ans--;
	}
	long long tans=0;
	tans=max(tans,ans);
	while(!pq.empty()){
		pq.pop();
	}
	//cout<<tans<<" ";
	///case 2: ton tai dinh duoc nang cap len 2 => tat ca cac diem trong doan (l,r) deu da duoc nang cap len loai 1. sau do tham nhu tren
	mcost=k;
	int tpos;
	if(mcost>0){
		ans=0;
		for(int i=0;i<n;i++){
			pq.push({-cost1[i],i});
		}
		while(!pq.empty()&&mcost>0){
			mcost+=pq.top().first;
			if(mcost>=0){
			ans++;
			check[pq.top().second]++;
			//cout<<pq.top().second<<" "<<check[pq.top().second]<<" "<<-pq.top().first<<"\n";
			tpos=pq.top().second;
			pq.pop();
			if(check[tpos]==1){
				pq.push({-cost2[tpos],tpos});
			}
			}
		}
		tans=max(tans,ans);
	}
	return tans;
}

Subtask #0
0.0 / 0.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 6488 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
2 Halted 0 ms 0 KB -

Subtask #1
0.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 74 ms 16572 KB 1st lines differ - on the 1st token, expected: '451', found: '371'
2 Halted 0 ms 0 KB -

Subtask #2
0.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 6488 KB Output is correct
2 Correct 1 ms 6488 KB Output is correct
3 Correct 1 ms 6648 KB Output is correct
4 Correct 1 ms 6488 KB Output is correct
5 Incorrect 1 ms 6488 KB 1st lines differ - on the 1st token, expected: '3', found: '4'
6 Halted 0 ms 0 KB -

Subtask #3
0.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 6488 KB Output is correct
2 Correct 1 ms 6488 KB Output is correct
3 Correct 1 ms 6648 KB Output is correct
4 Correct 1 ms 6488 KB Output is correct
5 Incorrect 1 ms 6488 KB 1st lines differ - on the 1st token, expected: '3', found: '4'
6 Halted 0 ms 0 KB -

Subtask #4
0.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 6488 KB Output is correct
2 Correct 1 ms 6488 KB Output is correct
3 Correct 1 ms 6648 KB Output is correct
4 Correct 1 ms 6488 KB Output is correct
5 Incorrect 1 ms 6488 KB 1st lines differ - on the 1st token, expected: '3', found: '4'
6 Halted 0 ms 0 KB -

Subtask #5
0.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 6488 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
2 Halted 0 ms 0 KB -

Subtask #6
0.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 6488 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
2 Halted 0 ms 0 KB -

Subtask #7
0.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 6488 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
2 Halted 0 ms 0 KB -

Subtask #8
0.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 6488 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
2 Halted 0 ms 0 KB -

Subtask #9
0.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 6488 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
2 Halted 0 ms 0 KB -