oj.uz

답안 #490996

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
490996 2021-11-30T03:06:22 Z Haruto810198 Soccer (JOI17_soccer) C++17
100 / 100
 955 ms 145932 KB 
#include <bits/stdc++.h>

using namespace std;

#define int long long
#define double long double

#define FOR(i, l, r, d) for(int i=(l); i<=(r); i+=(d))
#define szof(x) ((int)(x).size())

#define vi vector<int>
#define pii pair<int, int>

#define F first
#define S second

#define pb push_back
#define eb emplace_back
#define mkp make_pair

const int INF = 2147483647;
const int LNF = INF*INF;
const int MOD = 1000000007;
const int mod = 998244353;
const double eps = 1e-12;

//#pragma GCC optimize("Ofast")
//#pragma GCC optimize("unroll-loops")

const int MAX = 510;

const int dx[4] = {1, -1, 0, 0};
const int dy[4] = {0, 0, 1, -1};

// 0, 1, 2, 3, 4 : D, U, R, L, X

int h, w;
int A, B, C;
int n;
pii pt[100010];

int dis[MAX][MAX];
int id[MAX][MAX];

vector<pii> edge[5 * MAX * MAX];
int res[5 * MAX * MAX];

void bfs(){
	
	FOR(i, 0, h, 1){
		FOR(j, 0, w, 1){
			dis[i][j] = INF;
		}
	}

	queue<pii> qu;
	
	FOR(i, 1, n, 1){
		dis[pt[i].F][pt[i].S] = 0;
		qu.push(pt[i]);
	}
	
	while(!qu.empty()){
		pii v = qu.front();
		qu.pop();
		int vx = v.F, vy = v.S;
		FOR(i, 0, 3, 1){
			int ux = vx + dx[i], uy = vy + dy[i];
			if(0 <= ux and ux <= h and 0 <= uy and uy <= w and dis[ux][uy] == INF){
				dis[ux][uy] = dis[vx][vy] + 1;
				qu.emplace(ux, uy);
			}
		}
	}
	
}

void Dijkstra(){
	
	FOR(i, 0, 5 * (h + 1) * (w + 1), 1){
		res[i] = LNF;
	}
	res[ 5 * id[ pt[1].F ][ pt[1].S ] + 4 ] = 0; // pt[1], stop
	
	priority_queue<pii, vector<pii>, greater<pii>> pq;
	pq.emplace(0, 5 * id[ pt[1].F ][ pt[1].S ] + 4);
	
	while(!pq.empty()){
		int v = pq.top().S;
		int resv = pq.top().F;
		pq.pop();
		
		if(resv > res[v]) continue;
		
		for(pii e : edge[v]){
			int u = e.F;
			int duv = e.S;
			if(res[v] + duv < res[u]){
				res[u] = res[v] + duv;
				pq.emplace(res[u], u);
			}
		}
	}

}

signed main(){

    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
	
	cin>>h>>w;
	cin>>A>>B>>C;
	cin>>n;
	FOR(i, 1, n, 1){
		cin>>pt[i].F>>pt[i].S;
	}
	
	bfs();
	/*
	cerr<<"dis : "<<endl;
	FOR(i, 0, h, 1){
		FOR(j, 0, w, 1){
			cerr<<dis[i][j]<<" ";
		}
		cerr<<endl;
	}
	cerr<<endl;
	*/
	FOR(i, 0, h, 1){
		FOR(j, 0, w, 1){
			id[i][j] = i * (w + 1) + j;
		}
	}

	FOR(i, 0, h, 1){
		FOR(j, 0, w, 1){

			int v = id[i][j];
			
			// v, move -> u, move
			// v, stop -> u, stop
			FOR(k, 0, 3, 1){
				int ii = i + dx[k], jj = j + dy[k];
				if(!(0 <= ii and ii <= h and 0 <= jj and jj <= w)) continue;
				int u = id[ii][jj];
				edge[5*v + k].eb(5*u + k, A);
				edge[5*v + 4].eb(5*u + 4, C);
			}

			// v, move -> v, stop
			FOR(k, 0, 3, 1){
				edge[5*v + k].eb(5*v + 4, 0);
			}

			// v, stop -> v, move
			FOR(k, 0, 3, 1){
				edge[5*v + 4].eb(5*v + k, dis[i][j] * C + B);
			}
		}
	}
	
	Dijkstra();
	
	int Res = LNF;
	FOR(k, 0, 4, 1){
		// pt[n]
		Res = min(Res, res[5 * id[ pt[n].F ][ pt[n].S ] + k]);
	}
	cout<<Res<<'\n';
	
	return 0;
	
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 156 ms 59724 KB Output is correct
2 Correct 16 ms 31000 KB Output is correct
3 Correct 578 ms 143636 KB Output is correct
4 Correct 642 ms 143688 KB Output is correct
5 Correct 237 ms 71732 KB Output is correct

Subtask #2
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 680 ms 143660 KB Output is correct
2 Correct 672 ms 143704 KB Output is correct
3 Correct 490 ms 116360 KB Output is correct
4 Correct 488 ms 135464 KB Output is correct
5 Correct 509 ms 125288 KB Output is correct
6 Correct 555 ms 143728 KB Output is correct
7 Correct 705 ms 143632 KB Output is correct
8 Correct 613 ms 143644 KB Output is correct
9 Correct 677 ms 143696 KB Output is correct
10 Correct 125 ms 54040 KB Output is correct
11 Correct 691 ms 143736 KB Output is correct
12 Correct 648 ms 143612 KB Output is correct
13 Correct 381 ms 116268 KB Output is correct
14 Correct 688 ms 143672 KB Output is correct
15 Correct 537 ms 125224 KB Output is correct

Subtask #3
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 156 ms 59724 KB Output is correct
2 Correct 16 ms 31000 KB Output is correct
3 Correct 578 ms 143636 KB Output is correct
4 Correct 642 ms 143688 KB Output is correct
5 Correct 237 ms 71732 KB Output is correct
6 Correct 680 ms 143660 KB Output is correct
7 Correct 672 ms 143704 KB Output is correct
8 Correct 490 ms 116360 KB Output is correct
9 Correct 488 ms 135464 KB Output is correct
10 Correct 509 ms 125288 KB Output is correct
11 Correct 555 ms 143728 KB Output is correct
12 Correct 705 ms 143632 KB Output is correct
13 Correct 613 ms 143644 KB Output is correct
14 Correct 677 ms 143696 KB Output is correct
15 Correct 125 ms 54040 KB Output is correct
16 Correct 691 ms 143736 KB Output is correct
17 Correct 648 ms 143612 KB Output is correct
18 Correct 381 ms 116268 KB Output is correct
19 Correct 688 ms 143672 KB Output is correct
20 Correct 537 ms 125224 KB Output is correct
21 Correct 145 ms 67720 KB Output is correct
22 Correct 794 ms 135512 KB Output is correct
23 Correct 749 ms 125800 KB Output is correct
24 Correct 877 ms 135520 KB Output is correct
25 Correct 648 ms 143792 KB Output is correct
26 Correct 678 ms 135592 KB Output is correct
27 Correct 376 ms 128960 KB Output is correct
28 Correct 382 ms 129648 KB Output is correct
29 Correct 687 ms 137800 KB Output is correct
30 Correct 542 ms 131600 KB Output is correct
31 Correct 860 ms 143724 KB Output is correct
32 Correct 955 ms 145932 KB Output is correct
33 Correct 598 ms 143676 KB Output is correct
34 Correct 914 ms 143668 KB Output is correct
35 Correct 385 ms 129860 KB Output is correct