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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. long long n,d[1000][1000],res=0,x,y;
  4. long long d1,d2;
  5. void loang(long long i,long long j)
  6. {
  7.     if (i>=1 && j>=1 && i<=n && j<=n)
  8.         if (i!=d1 && j!=d2)
  9.         {
  10.             if (d[i][j]==0)
  11.                 {
  12.                 d[i][j]=1;
  13.                 loang(i+2,j-1);
  14.                 loang(i+2,j+1);
  15.                 loang(i+1,j-2);
  16.                 loang(i+1,j+2);
  17.                 loang(i-2,j+1);
  18.                 loang(i-2,j-1);
  19.                 loang(i-1,j+2);
  20.                 loang(i-1,j-2);
  21.                 d[i][j]=0;
  22.     }}
  23.     else
  24.         res+=1;
  25. }
  26. int main() {
  27.     freopen("madituan.inp","r",stdin);
  28.     freopen("madituan.out","w",stdout);
  29.     cin>>n;
  30.     cin>>x>>y;
  31.     cin>>d1>>d2;
  32.     loang(x,y);
  33.     cout<<res;
  34.     return 0;}
  35.  
Success #stdin #stdout 0.01s 5280KB
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https://ideone.com/2r5C7E
mã đi tuần
language:
C++14 (gcc 8.3)
created:
9 days ago
visibility:
public

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