oj.uz

Submission #20963

# Submission time Handle Problem Language Result Execution time Memory
20963 2017-03-23T05:55:38 Z kdh9949 Soccer (JOI17_soccer) C++14
100 / 100
 1573 ms 87888 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

struct Bfs{
	int x, y;
};

struct Dijk{
	int x, y, d; ll md;
	bool operator<(const Dijk &oth) const {
		return md > oth.md;
	}
};

int n, m, k, sx, sy, ex, ey;
ll A, B, C, c[505][505], md[505][505][5];
queue<Bfs> q;
priority_queue<Dijk> pq;

const int dx[] = {1, -1, 0, 0}, dy[] = {0, 0, 1, -1};
const ll inf = 1e18;

int val(int x, int y){ return x >= 1 && x <= n && y >= 1 && y <= m; }

int main(){
	scanf("%d%d%lld%lld%lld%d", &n, &m, &A, &B, &C, &k); n++; m++;
	for(int i = 1; i <= n; i++) fill(c[i] + 1, c[i] + m + 1, inf);
	for(int i = 1; i <= n; i++) for(int j = 1; j <= m; j++) fill(md[i][j], md[i][j] + 5, inf);
	for(int i = 1; i <= k; i++){
		int x, y; scanf("%d%d", &x, &y); x++; y++;
		c[x][y] = 0; q.push({x, y});
		if(i == 1){
			sx = x; sy = y;
			md[sx][sy][4] = 0;
			pq.push({sx, sy, 4, 0});
		}
		else if(i == k){ ex = x; ey = y; }
	}
	while(!q.empty()){
		Bfs cur = q.front(); q.pop();
		for(int i = 0; i < 4; i++){
			int nx = cur.x + dx[i], ny = cur.y + dy[i];
			if(!val(nx, ny)) continue;
			ll nd = c[cur.x][cur.y] + C;
			if(c[nx][ny] > nd){
				c[nx][ny] = nd;
				q.push({nx, ny});
			}
		}
	}
	while(!pq.empty()){
		Dijk cur = pq.top(); pq.pop();
		ll w = cur.d == 4 ? 0 : c[cur.x][cur.y];
		for(int i = 0; i < 4; i++){
			int nx = cur.x + dx[i], ny = cur.y + dy[i];
			ll nd = cur.md + w + C;
			if(val(nx, ny) && md[nx][ny][4] > nd){
				md[nx][ny][4] = nd;
				pq.push({nx, ny, 4, nd});
			}
			nd = cur.md + (cur.d == i ? 0 : w + B) + A;
			if(val(nx, ny) && md[nx][ny][i] > nd){
				md[nx][ny][i] = nd;
				pq.push({nx, ny, i, nd});
			}
		}
	}
	printf("%lld", *min_element(md[ex][ey], md[ex][ey] + 5));
}

Compilation message

soccer.cpp: In function 'int main()':
soccer.cpp:27:53: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%lld%lld%lld%d", &n, &m, &A, &B, &C, &k); n++; m++;
                                                     ^
soccer.cpp:31:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int x, y; scanf("%d%d", &x, &y); x++; y++;
                                  ^

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 203 ms 23280 KB Output is correct
2 Correct 0 ms 13976 KB Output is correct
3 Correct 989 ms 50924 KB Output is correct
4 Correct 1046 ms 50924 KB Output is correct
5 Correct 69 ms 14148 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1229 ms 50948 KB Output is correct
2 Correct 1166 ms 50968 KB Output is correct
3 Correct 823 ms 50948 KB Output is correct
4 Correct 809 ms 50936 KB Output is correct
5 Correct 863 ms 50968 KB Output is correct
6 Correct 789 ms 50936 KB Output is correct
7 Correct 1216 ms 87880 KB Output is correct
8 Correct 1053 ms 87844 KB Output is correct
9 Correct 1146 ms 87880 KB Output is correct
10 Correct 86 ms 23328 KB Output is correct
11 Correct 1213 ms 87888 KB Output is correct
12 Correct 1209 ms 87832 KB Output is correct
13 Correct 559 ms 50936 KB Output is correct
14 Correct 1133 ms 87884 KB Output is correct
15 Correct 959 ms 51020 KB Output is correct

Subtask #3
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 203 ms 23280 KB Output is correct
2 Correct 0 ms 13976 KB Output is correct
3 Correct 989 ms 50924 KB Output is correct
4 Correct 1046 ms 50924 KB Output is correct
5 Correct 69 ms 14148 KB Output is correct
6 Correct 1229 ms 50948 KB Output is correct
7 Correct 1166 ms 50968 KB Output is correct
8 Correct 823 ms 50948 KB Output is correct
9 Correct 809 ms 50936 KB Output is correct
10 Correct 863 ms 50968 KB Output is correct
11 Correct 789 ms 50936 KB Output is correct
12 Correct 1216 ms 87880 KB Output is correct
13 Correct 1053 ms 87844 KB Output is correct
14 Correct 1146 ms 87880 KB Output is correct
15 Correct 86 ms 23328 KB Output is correct
16 Correct 1213 ms 87888 KB Output is correct
17 Correct 1209 ms 87832 KB Output is correct
18 Correct 559 ms 50936 KB Output is correct
19 Correct 1133 ms 87884 KB Output is correct
20 Correct 959 ms 51020 KB Output is correct
21 Correct 89 ms 15236 KB Output is correct
22 Correct 1553 ms 50948 KB Output is correct
23 Correct 1443 ms 50972 KB Output is correct
24 Correct 1573 ms 32680 KB Output is correct
25 Correct 1469 ms 50952 KB Output is correct
26 Correct 1296 ms 51112 KB Output is correct
27 Correct 216 ms 15032 KB Output is correct
28 Correct 369 ms 15164 KB Output is correct
29 Correct 1036 ms 33360 KB Output is correct
30 Correct 669 ms 19516 KB Output is correct
31 Correct 1373 ms 87880 KB Output is correct
32 Correct 1546 ms 51772 KB Output is correct
33 Correct 1033 ms 50928 KB Output is correct
34 Correct 1546 ms 51020 KB Output is correct
35 Correct 236 ms 14900 KB Output is correct