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a53

taxe

a53
Oct 13th, 2017
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0
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  1. #include <fstream>
  2. #define NN 205
  3. #define INFINIT 1000000000
  4. using namespace std;
  5. ifstream f("taxe.in");
  6. ofstream g("taxe.out");
  7. int n,m,a[NN][NN],s[NN][NN];
  8.  
  9. int main()
  10. {
  11. f>>n>>m;
  12. for(int i=1;i<=n;++i)
  13. for(int j=1;j<=m;++j)
  14. f>>a[i][j];
  15. for(int i=1;i<=n;++i)
  16. s[i][m]=a[i][m];
  17. for(int j=1;j<=m;++j)
  18. s[0][j]=s[n+1][j]=INFINIT;
  19. for(int j=m-1;j>=1;--j)
  20. for(int i=1;i<=n;++i)
  21. s[i][j]=a[i][j]+min(min(s[i-1][j+1],s[i][j+1]),s[i+1][j+1]);
  22. int pmin =1;
  23. for(int i=2;i<=n;++i)
  24. if(s[i][1]<s[pmin][1])
  25. pmin=i;
  26. g<<s[pmin][1];
  27. return 0;
  28. }
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