oj.uz

답안 #714846

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
714846 2023-03-25T10:49:02 Z ajab_01 Toll (BOI17_toll) C++17
0 / 100
 3000 ms 52656 KB 
#include<bits/stdc++.h>
using namespace std;

const int INF = 1e9 + 9;
const int N = 5e4 + 5;
const int SQ = 250;
vector<pair<int , int> > g[N];
int dp[N][SQ] , dis[N] , k , n , m , o , a , b;

int main(){
	ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
	cin >> k >> n >> m >> o;
	for(int i = 0 ; i < m ; i++){
		int u , v , w;
		cin >> u >> v >> w;
		g[v].push_back({u , w});
	}

	for(int i = 0 ; i < n ; i++){
		for(int d = 1 ; d < min(n - i , SQ) ; d++){
			int v = i + d;
			dp[i][d] = INF;
			for(pair<int , int> p : g[v]){
				int u = p.first , w = p.second;
				if(u < i) continue;
				dp[i][d] = min(dp[i][d] , dp[i][u - i] + w);
			}
		}
	}

	for(int oo = 0 ; oo < o ; oo++){
		cin >> a >> b;
		int vala = a / k , valb = b / k;
		fill(dis + vala * k , dis + (vala + 1) * k , INF);
		dis[a] = 0;
		while(valb - vala >= SQ){
			fill(dis + (vala + SQ - 1) * k , dis + (vala + SQ) * k , INF);
			for(int i = (vala + SQ - 1) * k ; i < (vala + SQ) * k ; i++) for(int j = vala * k ; j < (vala + 1) * k ; j++) dis[i] = min(dis[i] , dis[j] + dp[j][i - j]);
		}
		dis[b] = INF;
		for(int i = vala * k ; i < (vala + 1) * k ; i++) dis[b] = min(dis[b] , dis[i] + dp[i][b - i]);
		(dis[b] == INF ? cout << -1 << '\n' : cout << dis[b] << '\n');
	}
	return 0;
}

Subtask #1
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 3057 ms 52656 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 3016 ms 52568 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 1444 KB Output is correct
2 Correct 1 ms 1492 KB Output is correct
3 Correct 1 ms 1492 KB Output is correct
4 Correct 1 ms 1492 KB Output is correct
5 Correct 2 ms 1492 KB Output is correct
6 Execution timed out 3030 ms 2516 KB Time limit exceeded
7 Halted 0 ms 0 KB -

Subtask #4
0 / 31.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 1444 KB Output is correct
2 Correct 1 ms 1492 KB Output is correct
3 Correct 1 ms 1492 KB Output is correct
4 Correct 1 ms 1492 KB Output is correct
5 Correct 2 ms 1492 KB Output is correct
6 Execution timed out 3030 ms 2516 KB Time limit exceeded
7 Halted 0 ms 0 KB -

Subtask #5
0 / 44.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 3057 ms 52656 KB Time limit exceeded
2 Halted 0 ms 0 KB -