Submission #7447376
Source Code Expand
#include <bits/stdc++.h> using namespace std; bool g[502][502],check;//小区,总体可不可行 int n,m,sx,sy,ex,ey;//行,列,开始坐标,结束坐标 int dx[]={0,0,-1,1};//偏移量 int dy[]={1,-1,0,0}; void dfs(int x,int y){ if(check){//如果之前已经有正确情况就直接退出 return ; } if(ex==x&&ey==y){//这是正确情况,将总体情况(check)赋值为true,之后退出 check=true; return ; } /*!!!这就是为什么g要定成502x502,为的是防止越界! 将小区外面围一圈false之后,妈妈就再也不会担心我越界了! 毕竟是false,不会搜到,那么想要搜到再外面也不可能了。 */ int nowx,nowy; for(int i=0;i<4;i++){ nowx=x+dx[i];nowy=y+dy[i]; if(g[nowx][nowy]){ g[x][y]=false; dfs(nowx,nowy); //这里不能将状态回归! //毕竟之前竟然到过这里那么这里的情况肯定已经全部搜我。我因为没有早些出坑,找了半天错就是不知道为啥TLE,:-( } } } int main(){ //49-64行为输入 cin>>n>>m; char c; for(int i=1;i<=n;i++){ for(int j=1;j<=m;j++){ cin>>c; if(c!='#'){ g[i][j]=true; if(c=='s'){ sx=i;sy=j; } if(c=='g'){ ex=i;ey=j; } } } } g[sx][sy]=false; dfs(sx,sy);//搜索一下 if(check){//Perfect ending (英)、Fin parfait(法)、Der perfekte abschluss eines(德)。中文自己查:-) cout<<"Yes\n"; } else{ cout<<"No\n"; } return 0; }
Submission Info
Submission Time | |
---|---|
Task | A - 深さ優先探索 |
User | luogu_bot3 |
Language | C++ (GCC 5.4.1) |
Score | 100 |
Code Size | 1802 Byte |
Status | AC |
Exec Time | 24 ms |
Memory | 7936 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 100 / 100 | ||||
Status |
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|
Set Name | Test Cases |
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Sample | 00_sample_01.txt, 00_sample_02.txt, 00_sample_03.txt, 00_sample_04.txt, 00_sample_05.txt |
All | 00_min_01.txt, 00_min_02.txt, 00_min_03.txt, 00_min_04.txt, 00_min_05.txt, 00_min_06.txt, 00_min_07.txt, 00_min_08.txt, 00_sample_01.txt, 00_sample_02.txt, 00_sample_03.txt, 00_sample_04.txt, 00_sample_05.txt, 01_rnd_00.txt, 01_rnd_01.txt, 01_rnd_02.txt, 01_rnd_03.txt, 01_rnd_04.txt, 01_rnd_05.txt, 01_rnd_06.txt, 01_rnd_07.txt, 01_rnd_08.txt, 01_rnd_09.txt, 01_rnd_10.txt, 01_rnd_11.txt, 01_rnd_12.txt, 01_rnd_13.txt, 01_rnd_14.txt, 01_rnd_15.txt, 01_rnd_16.txt, 01_rnd_17.txt, 01_rnd_18.txt, 01_rnd_19.txt, 02_rndhard_00.txt, 02_rndhard_01.txt, 02_rndhard_02.txt, 02_rndhard_03.txt, 02_rndhard_04.txt, 02_rndhard_05.txt, 02_rndhard_06.txt, 02_rndhard_07.txt, 02_rndhard_08.txt, 02_rndhard_09.txt, 02_rndhard_10.txt, 02_rndhard_11.txt, 02_rndhard_12.txt, 02_rndhard_13.txt, 02_rndhard_14.txt, 02_rndhard_15.txt, 02_rndhard_16.txt, 02_rndhard_17.txt, 02_rndhard_18.txt, 02_rndhard_19.txt, 02_rndhard_20.txt, 02_rndhard_21.txt, 02_rndhard_22.txt, 02_rndhard_23.txt, 02_rndhard_24.txt, 02_rndhard_25.txt, 02_rndhard_26.txt, 02_rndhard_27.txt, 02_rndhard_28.txt, 02_rndhard_29.txt, 02_rndhard_30.txt, 02_rndhard_31.txt, 02_rndhard_32.txt, 02_rndhard_33.txt, 02_rndhard_34.txt, 02_rndhard_35.txt, 02_rndhard_36.txt, 02_rndhard_37.txt, 02_rndhard_38.txt, 02_rndhard_39.txt, 03_rndhardsmall_00.txt, 03_rndhardsmall_01.txt, 03_rndhardsmall_02.txt, 03_rndhardsmall_03.txt, 03_rndhardsmall_04.txt, 03_rndhardsmall_05.txt, 03_rndhardsmall_06.txt, 03_rndhardsmall_07.txt, 03_rndhardsmall_08.txt, 03_rndhardsmall_09.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
00_min_01.txt | AC | 1 ms | 256 KB |
00_min_02.txt | AC | 3 ms | 384 KB |
00_min_03.txt | AC | 1 ms | 256 KB |
00_min_04.txt | AC | 1 ms | 256 KB |
00_min_05.txt | AC | 1 ms | 256 KB |
00_min_06.txt | AC | 1 ms | 256 KB |
00_min_07.txt | AC | 1 ms | 256 KB |
00_min_08.txt | AC | 1 ms | 256 KB |
00_sample_01.txt | AC | 1 ms | 256 KB |
00_sample_02.txt | AC | 1 ms | 256 KB |
00_sample_03.txt | AC | 1 ms | 256 KB |
00_sample_04.txt | AC | 1 ms | 256 KB |
00_sample_05.txt | AC | 1 ms | 256 KB |
01_rnd_00.txt | AC | 14 ms | 256 KB |
01_rnd_01.txt | AC | 19 ms | 4992 KB |
01_rnd_02.txt | AC | 19 ms | 3072 KB |
01_rnd_03.txt | AC | 20 ms | 7936 KB |
01_rnd_04.txt | AC | 15 ms | 640 KB |
01_rnd_05.txt | AC | 16 ms | 512 KB |
01_rnd_06.txt | AC | 18 ms | 2432 KB |
01_rnd_07.txt | AC | 18 ms | 2816 KB |
01_rnd_08.txt | AC | 15 ms | 512 KB |
01_rnd_09.txt | AC | 15 ms | 512 KB |
01_rnd_10.txt | AC | 18 ms | 896 KB |
01_rnd_11.txt | AC | 14 ms | 512 KB |
01_rnd_12.txt | AC | 18 ms | 3200 KB |
01_rnd_13.txt | AC | 16 ms | 1024 KB |
01_rnd_14.txt | AC | 16 ms | 512 KB |
01_rnd_15.txt | AC | 18 ms | 1280 KB |
01_rnd_16.txt | AC | 14 ms | 512 KB |
01_rnd_17.txt | AC | 19 ms | 1152 KB |
01_rnd_18.txt | AC | 15 ms | 512 KB |
01_rnd_19.txt | AC | 16 ms | 2432 KB |
02_rndhard_00.txt | AC | 16 ms | 512 KB |
02_rndhard_01.txt | AC | 16 ms | 512 KB |
02_rndhard_02.txt | AC | 16 ms | 512 KB |
02_rndhard_03.txt | AC | 16 ms | 512 KB |
02_rndhard_04.txt | AC | 16 ms | 512 KB |
02_rndhard_05.txt | AC | 16 ms | 512 KB |
02_rndhard_06.txt | AC | 16 ms | 512 KB |
02_rndhard_07.txt | AC | 16 ms | 512 KB |
02_rndhard_08.txt | AC | 16 ms | 512 KB |
02_rndhard_09.txt | AC | 16 ms | 512 KB |
02_rndhard_10.txt | AC | 16 ms | 512 KB |
02_rndhard_11.txt | AC | 16 ms | 512 KB |
02_rndhard_12.txt | AC | 16 ms | 512 KB |
02_rndhard_13.txt | AC | 16 ms | 512 KB |
02_rndhard_14.txt | AC | 16 ms | 512 KB |
02_rndhard_15.txt | AC | 16 ms | 512 KB |
02_rndhard_16.txt | AC | 16 ms | 512 KB |
02_rndhard_17.txt | AC | 16 ms | 512 KB |
02_rndhard_18.txt | AC | 16 ms | 512 KB |
02_rndhard_19.txt | AC | 17 ms | 512 KB |
02_rndhard_20.txt | AC | 16 ms | 512 KB |
02_rndhard_21.txt | AC | 16 ms | 512 KB |
02_rndhard_22.txt | AC | 16 ms | 512 KB |
02_rndhard_23.txt | AC | 16 ms | 512 KB |
02_rndhard_24.txt | AC | 16 ms | 512 KB |
02_rndhard_25.txt | AC | 16 ms | 512 KB |
02_rndhard_26.txt | AC | 16 ms | 512 KB |
02_rndhard_27.txt | AC | 16 ms | 512 KB |
02_rndhard_28.txt | AC | 16 ms | 512 KB |
02_rndhard_29.txt | AC | 16 ms | 512 KB |
02_rndhard_30.txt | AC | 16 ms | 512 KB |
02_rndhard_31.txt | AC | 16 ms | 512 KB |
02_rndhard_32.txt | AC | 24 ms | 512 KB |
02_rndhard_33.txt | AC | 16 ms | 512 KB |
02_rndhard_34.txt | AC | 16 ms | 512 KB |
02_rndhard_35.txt | AC | 16 ms | 512 KB |
02_rndhard_36.txt | AC | 16 ms | 512 KB |
02_rndhard_37.txt | AC | 16 ms | 512 KB |
02_rndhard_38.txt | AC | 16 ms | 512 KB |
02_rndhard_39.txt | AC | 16 ms | 512 KB |
03_rndhardsmall_00.txt | AC | 1 ms | 256 KB |
03_rndhardsmall_01.txt | AC | 1 ms | 256 KB |
03_rndhardsmall_02.txt | AC | 1 ms | 256 KB |
03_rndhardsmall_03.txt | AC | 1 ms | 256 KB |
03_rndhardsmall_04.txt | AC | 1 ms | 256 KB |
03_rndhardsmall_05.txt | AC | 1 ms | 256 KB |
03_rndhardsmall_06.txt | AC | 1 ms | 256 KB |
03_rndhardsmall_07.txt | AC | 1 ms | 256 KB |
03_rndhardsmall_08.txt | AC | 1 ms | 256 KB |
03_rndhardsmall_09.txt | AC | 1 ms | 256 KB |