-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy path1189.cpp
More file actions
71 lines (48 loc) · 991 Bytes
/
1189.cpp
File metadata and controls
71 lines (48 loc) · 991 Bytes
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
//
// 1189.cpp
// algo
//
// Created by 박효정 on 2021/10/08.
//
#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;
char arr[5][5];
int r,c,k;
int res;
int vis[5][5];
int dx[4]={0,-1,0,1};
int dy[4]={-1,0,1,0};
void dfs(int x,int y,int def){
if(x>=r||y>=c||x<0||y<0||(x==0&&y==c-1)){
if(x==0&&y==c-1){
if(def==k){
res++;
}
}
return;
}
if(vis[x][y]==0&&arr[x][y]=='.'){
vis[x][y]=1;
dfs(x+1,y,def+1);
dfs(x,y+1,def+1);
dfs(x-1,y,def+1);
dfs(x,y-1,def+1);
vis[x][y]=0;
}
}
int main(){
cin.tie(0);
cout.tie(0);
std::ios::sync_with_stdio(false);
cin>>r>>c>>k;
for(int i=0;i<r;i++){
for(int j=0;j<c;j++){
cin>>arr[i][j];
}
}
dfs(r-1,0,1);
cout<<res<<"\n";
return 0;
}