mirror of
https://github.com/Kiritow/OJ-Problems-Source.git
synced 2024-03-22 13:11:29 +08:00
78 lines
2.1 KiB
C++
78 lines
2.1 KiB
C++
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <math.h>
|
|
#include <iostream>
|
|
#include <algorithm>
|
|
#include <queue>
|
|
using namespace std;
|
|
#define MAXN 20
|
|
#define MAXKEY 11
|
|
int door[MAXN][MAXN][MAXN][MAXN];
|
|
int keys[MAXN][MAXN];
|
|
int n, m, p;
|
|
struct NODE{
|
|
int x, y;
|
|
int step;
|
|
int havkey;
|
|
};
|
|
int dir[4][2] = {0,1, 0,-1, 1,0, -1,0};
|
|
bool vis[MAXN][MAXN][1<<11];
|
|
int bfs()
|
|
{
|
|
queue<NODE> Q;
|
|
NODE st;
|
|
st.x = st.y = 1;
|
|
st.step = 0;
|
|
st.havkey = keys[1][1];
|
|
Q.push(st);
|
|
while(!Q.empty()){
|
|
NODE cur = Q.front();
|
|
Q.pop();
|
|
if(cur.x == n && cur.y == m) return cur.step;
|
|
for(int i=0; i<4; i++){
|
|
int tx = cur.x + dir[i][0];
|
|
int ty = cur.y + dir[i][1];
|
|
if(tx >= 1 && tx <= n && ty >= 1 && ty <= m){
|
|
int usekey = door[cur.x][cur.y][tx][ty];
|
|
if(usekey == 0) continue;
|
|
if(usekey == -1 || ((cur.havkey >> usekey) & 1)){
|
|
NODE nod;
|
|
nod.x = tx;
|
|
nod.y = ty;
|
|
nod.step = cur.step+1;
|
|
nod.havkey = cur.havkey | keys[tx][ty];
|
|
if(vis[nod.x][nod.y][nod.havkey] == false){
|
|
vis[nod.x][nod.y][nod.havkey] = true;
|
|
Q.push(nod);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
int main()
|
|
{
|
|
int k, s;
|
|
while(scanf("%d%d%d", &n, &m, &p) != EOF){
|
|
memset(door, -1, sizeof door);
|
|
memset(keys, 0, sizeof keys);
|
|
memset(vis, false, sizeof vis);
|
|
scanf("%d", &k);
|
|
int x1, x2, y1, y2, g, q;
|
|
for(int i=0; i<k; i++){
|
|
scanf("%d%d%d%d%d", &x1, &y1, &x2, &y2, &g);
|
|
door[x1][y1][x2][y2] = door[x2][y2][x1][y1] = g;
|
|
}
|
|
scanf("%d", &s);
|
|
for(int i=0; i<s; i++){
|
|
scanf("%d%d%d", &x1, &y1, &q);
|
|
keys[x1][y1] |= (1 << q);
|
|
}
|
|
int ans = bfs();
|
|
printf("%d\n", ans);
|
|
}
|
|
return 0;
|
|
}
|