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a53

Cladire1

a53
Oct 14th, 2017
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  1. #include <fstream>
  2. #define NN 1005
  3. #define MOD 9901
  4. using namespace std;
  5. ifstream f("cladire1.in");
  6. ofstream g("cladire1.out");
  7. int n,m,a[NN][NN],s[NN][NN];
  8.  
  9. int main()
  10. {
  11. f>>n>>m;
  12. int k,i,j;
  13. f>>k;
  14. for(int p=1;p<=k;++p)
  15. f>>i>>j,a[i][j]=1;
  16. s[1][1]=1;
  17. for(i=2;i<=n;++i)
  18. if(a[i-1][1]==0)
  19. s[i][1]=s[i-1][1];
  20. for(int j=2;j<=m;++j)
  21. if(a[1][j-1]==0)
  22. s[1][j]=s[1][j-1];
  23. for(int i=2;i<=n;++i)
  24. for(int j=2;j<=m;++j)
  25. {
  26. if(a[i-1][j]==0)
  27. s[i][j]+=s[i-1][j];
  28. if(a[i][j-1]==0)
  29. s[i][j]+=s[i][j-1];
  30. s[i][j]%=MOD;
  31. }
  32. g<<s[n][m];
  33. return 0;
  34. }
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