「求助，本地能过，交上去过不了」

求助，本地能过，交上去过不了

板块P1126 机器人搬重物
楼主nothing__
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发布时间2023/12/2 15:53
上次更新2023/12/2 15:55:36

被骇客银狼阻止的越权访问保存失败

求助，本地能过，交上去过不了

nothing__楼主2023/12/2 15:53

wa #9,10

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1 1 49 49 S

ans=320

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48 1 5 44 W

ans=32

代码如下，本地能过

#include<bits/stdc++.h>
using namespace std;
int n, m, h, ans, mp[50][50]; char ss[10], op;
struct node{int x, y, tp, dep;} st, ed; int v[50][50][4];
bool check(int x, int y) {
	if(x>m||y>n||x<=0||y<=0) return false;
	if(!mp[x][y]) return false;
	else if(!mp[x+1][y]) return false;
	else if(!mp[x][y+1]) return false;
	else if(!mp[x+1][y+1]) return false;
	return true;
}
int dx[4]={-1, 0, 1, 0};
int dy[4]={0, 1, 0, -1};
void bfs() {
	ans=0x3f3f3f3f;
	queue<node> q; q.push({st.x, st.y, h, 0});
	memset(v, 63, sizeof(v)); v[st.x][st.y][h]=0;
	while(!q.empty()) {
		int j=3; auto x=q.front(); q.pop();
		if(x.x==ed.x&&x.y==ed.y) {ans=min(ans, x.dep); continue;}
		for(int i=1;i<=3;i++) {
			int xx=x.x+dx[x.tp]*i;
			int yy=x.y+dy[x.tp]*i;
			if(!check(xx, yy)) {j=i-1; break;}
			if(v[xx][yy][x.tp]<x.dep+1) {j=i-1; break;}
		}
		for(int i=j;i>=1;i--) {
			int xx=x.x+dx[x.tp]*i;
			int yy=x.y+dy[x.tp]*i;
			v[xx][yy][x.tp]=x.dep+1;
			q.push({xx, yy, x.tp, x.dep+1});
		}
		for(int i=1;i<4;i++) {
			int t=(x.tp+i)%4;
			if(v[x.x][x.y][t]<=x.dep+min(i, 4-i)) continue;
			v[x.x][x.y][t]=x.dep+min(i, 4-i);
			q.push({x.x, x.y, t, x.dep+min(i, 4-i)});
		}
	}
	if(ans==0x3f3f3f3f) puts("-1"); else printf("%d", ans);
}
int main() {
	scanf("%d%d", &n, &m);
	for(int i=1;i<=n;i++) 
		for(int j=1;j<=m;j++) 
			scanf("%d", &mp[i][j]), mp[i][j]=abs(mp[i][j]-1);
	scanf("%d%d%d%d", &st.x, &st.y, &ed.x, &ed.y);
	scanf("%s", ss); op=ss[0];
	if(op=='N') h=0; else if(op=='E') h=1;
	else if(op=='S') h=2; else h=3;
	bfs();
	return 0;
}

2023/12/2 15:53