oj.uz

Submission #61659

# Submission time Handle Problem Language Result Execution time Memory
61659 2018-07-26T09:41:32 Z gusfring Soccer (JOI17_soccer) C++14
100 / 100
 709 ms 19188 KB 
#include <bits/stdc++.h>
typedef long long lint;
typedef long double llf;
using namespace std;
typedef pair<int, int> pi;
int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1};
 
int n, m;
lint a, b, c;
int dis[505][505];
 
bool ok(int x, int y){
	return x >= 0 && x <= n && y >= 0 && y <= m;
}
 
struct node{
	int x, y, typ;
	lint dis;
	bool operator<(const node &c)const{
		return dis > c.dis;
	}
};
 
priority_queue<node> pq;
lint dist[505][505][5];
 
void enqueue(int x, int y, int t, lint d){
	if(!ok(x, y)) return;
	if(dist[x][y][t] > d){
		dist[x][y][t] = d;
		pq.push({x, y, t, d});
	}
}
 
int main(){
	memset(dis, 0x3f, sizeof(dis));
	int t;
	cin >> n >> m >> a >> b >> c >> t;
  	if(n>1000) return 0;
	queue<pi> que;
	pi st, ed;
	for(int i=0; i<t; i++){
		int x, y;
		scanf("%d %d",&x,&y);
		if(i == 0) st = pi(x, y);
		if(i == t-1) ed = pi(x, y);
		dis[x][y] = 0;
		que.push(pi(x, y));
	}
	while(!que.empty()){
		auto x = que.front();
		que.pop();
		for(int i=0; i<4; i++){
			if(ok(x.first + dx[i], x.second + dy[i]) && dis[x.first + dx[i]][x.second + dy[i]] > 1e9){
				dis[x.first + dx[i]][x.second + dy[i]] = dis[x.first][x.second] + 1;
				que.push(pi(x.first + dx[i], x.second + dy[i]));
			}
		}
	}
	memset(dist, 0x3f, sizeof(dist));
	enqueue(st.first, st.second, 4, 0);
	while(!pq.empty()){
		auto x = pq.top();
		pq.pop();
		if(dist[x.x][x.y][x.typ] != x.dis) continue;
		if(x.typ == 4){
			for(int i=0; i<4; i++){
				enqueue(x.x + dx[i], x.y + dy[i], 4, x.dis + c);
				enqueue(x.x, x.y, i, x.dis + b);
			}
		}
		else{
			enqueue(x.x + dx[x.typ], x.y + dy[x.typ], x.typ, x.dis + a);
			enqueue(x.x, x.y, 4, x.dis + dis[x.x][x.y] * c);
		}
	}
	cout << dist[ed.first][ed.second][4];
}

Compilation message

soccer.cpp: In function 'int main()':
soccer.cpp:44:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d",&x,&y);
   ~~~~~^~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 113 ms 13028 KB Output is correct
2 Correct 14 ms 13028 KB Output is correct
3 Correct 504 ms 17764 KB Output is correct
4 Correct 594 ms 17764 KB Output is correct
5 Correct 105 ms 17764 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 677 ms 17780 KB Output is correct
2 Correct 702 ms 17888 KB Output is correct
3 Correct 413 ms 17960 KB Output is correct
4 Correct 386 ms 17960 KB Output is correct
5 Correct 432 ms 17960 KB Output is correct
6 Correct 477 ms 17960 KB Output is correct
7 Correct 536 ms 18028 KB Output is correct
8 Correct 477 ms 18028 KB Output is correct
9 Correct 614 ms 18028 KB Output is correct
10 Correct 94 ms 18028 KB Output is correct
11 Correct 674 ms 18100 KB Output is correct
12 Correct 608 ms 18100 KB Output is correct
13 Correct 348 ms 18100 KB Output is correct
14 Correct 686 ms 18100 KB Output is correct
15 Correct 478 ms 18100 KB Output is correct

Subtask #3
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 113 ms 13028 KB Output is correct
2 Correct 14 ms 13028 KB Output is correct
3 Correct 504 ms 17764 KB Output is correct
4 Correct 594 ms 17764 KB Output is correct
5 Correct 105 ms 17764 KB Output is correct
6 Correct 677 ms 17780 KB Output is correct
7 Correct 702 ms 17888 KB Output is correct
8 Correct 413 ms 17960 KB Output is correct
9 Correct 386 ms 17960 KB Output is correct
10 Correct 432 ms 17960 KB Output is correct
11 Correct 477 ms 17960 KB Output is correct
12 Correct 536 ms 18028 KB Output is correct
13 Correct 477 ms 18028 KB Output is correct
14 Correct 614 ms 18028 KB Output is correct
15 Correct 94 ms 18028 KB Output is correct
16 Correct 674 ms 18100 KB Output is correct
17 Correct 608 ms 18100 KB Output is correct
18 Correct 348 ms 18100 KB Output is correct
19 Correct 686 ms 18100 KB Output is correct
20 Correct 478 ms 18100 KB Output is correct
21 Correct 116 ms 18100 KB Output is correct
22 Correct 709 ms 18160 KB Output is correct
23 Correct 666 ms 18160 KB Output is correct
24 Correct 626 ms 18160 KB Output is correct
25 Correct 538 ms 18160 KB Output is correct
26 Correct 687 ms 18280 KB Output is correct
27 Correct 371 ms 18280 KB Output is correct
28 Correct 319 ms 18280 KB Output is correct
29 Correct 592 ms 18280 KB Output is correct
30 Correct 279 ms 18280 KB Output is correct
31 Correct 564 ms 18548 KB Output is correct
32 Correct 660 ms 19188 KB Output is correct
33 Correct 486 ms 19188 KB Output is correct
34 Correct 689 ms 19188 KB Output is correct
35 Correct 260 ms 19188 KB Output is correct