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Jan 21st, 2020
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  1. #include <fstream>
  2. using namespace std;
  3. ifstream f("sumtri.in");
  4. ofstream g("sumtri.out");
  5. int a[101][101],n;
  6. int main()
  7. { f>>n;
  8. for(int i=1;i<=n;i++)
  9. for(int j=1;j<=i;j++) f>>a[i][j];
  10. for(int i=n-1;i>=1;i--)
  11. for(int j=1;j<=i;j++)
  12. a[i][j]=a[i][j]+max(a[i+1][j],a[i+1][j+1]);
  13. g<<a[1][1];
  14. f.close();
  15. g.close();
  16. return 0;
  17. }
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