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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. typedef pair<int, int> pii;
  5. pii body;
  6. int dir;
  7.  
  8. void left()
  9. {
  10.     dir = (dir + 3)%4;
  11. }
  12.  
  13. void right()
  14. {
  15.     left();
  16.     left();
  17.     left();
  18. }
  19.  
  20. void about()
  21. {
  22.     left();
  23.     left();
  24. }
  25.  
  26. void forward()
  27. {
  28.     if(dir == 0)
  29.         --body.first;
  30.     else if(dir == 1)
  31.         ++body.second;
  32.     else if(dir == 2)
  33.         ++body.first;
  34.     else
  35.         --body.second;
  36. }
  37.  
  38. void print(vector<string> &v)
  39. {
  40.     int bi, bj;
  41.     tie(bi, bj) = body;
  42.     if(dir%2 == 0)
  43.     {
  44.         v[bi][bj] = '-';
  45.         v[bi][bj-1] = '\\';
  46.         v[bi][bj+1] = '/';
  47.  
  48.         if(dir == 2)
  49.             swap(v[bi][bj-1], v[bi][bj+1]);
  50.     }   
  51.     else
  52.     {
  53.         v[bi][bj] = '|';
  54.         v[bi-1][bj] = '\\';
  55.         v[bi+1][bj] = '/';
  56.  
  57.         if(dir == 1)
  58.             swap(v[bi-1][bj], v[bi+1][bj]);
  59.     }
  60.  
  61.     for(int i = 0; i < v.size(); ++i)
  62.         cout << v[i] << endl;
  63.  
  64. }
  65.  
  66. int main()
  67. {
  68.     ios_base::sync_with_stdio(false);
  69.     cin.tie(0);
  70.     cout.tie(0);
  71.  
  72.     int n, m, k;
  73. 	cin >> n >> m >> k;
  74.  
  75. 	vector<string> v(n);
  76.  
  77. 	for(int i = 0; i < n; ++i)
  78. 	{
  79. 		cin >> v[i];
  80.  
  81. 		for(int j = 0; j < m; ++j)
  82. 		{
  83. 			if(v[i][j] == '-')
  84. 			{
  85. 				body = make_pair(i, j);
  86.                 if(v[i][j-1] == '\\')
  87.                     dir = 0;
  88.                 else    
  89.                     dir = 2;
  90.  
  91.         	}
  92.  
  93. 			else if(v[i][j] == '|')
  94. 			{
  95. 				body = make_pair(i, j);
  96. 				if(v[i-1][j] == '\\')
  97.                     dir = 3;
  98.                 else
  99.                     dir = 1;
  100.  
  101.         	}
  102.  
  103. 		}
  104.     }
  105.  
  106.     string clean(m, '.');
  107.     for(int i = 0; i < n; ++i)
  108.         v[i] = clean;
  109.  
  110.     for(int i = 0; i < n; ++i)
  111.     cout << v[i] << endl;    
  112.  
  113. 	while(k--)
  114. 	{
  115. 		string cmd, dummy;
  116. 		cin >> cmd >> dummy;
  117.  
  118. 		if(cmd[0] == 'L')
  119. 			left();
  120. 		else if(cmd[0] == 'R')
  121. 			right();
  122. 		else if(cmd[0] == 'A')
  123. 			about();
  124. 		else
  125. 			forward();
  126.  
  127. 	}
  128.  
  129.     print(v);
  130.  
  131. }
Success #stdin #stdout 0s 4468KB
comments (?)
stdin
copy 
4 7 4
.......
....\..
....|..
..../..
F a
A a
A a
F a
stdout
copy 
.......
.......
.......
.......
.......
..\....
..|....
../....
https://ideone.com/Bb10OB
language:
C++ (gcc 8.3)
created:
4 years ago
visibility:
public

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