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nguyenhappy92

Tổng các giá trị nằm trên biên của ma trận 2 chiều

Dec 20th, 2015
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  1. // Tong bien cua ma tran
  2. // Khai bao ham thu vien neu co
  3. #include<stdio.h>
  4. #include<conio.h>
  5. #define SIZE 100
  6. void nhap(int a[][SIZE],int &m,int &n)
  7. {
  8. scanf("%d%d",&m,&n);
  9. for(int i=0;i<m;i++)
  10. {
  11. for(int j=0;j<n;j++)
  12. {
  13. scanf("%d",&a[i][j]);
  14. }
  15. }
  16. }
  17. long tongbien(int a[][SIZE],int m,int n)
  18. {
  19. long s=0;
  20. for(int j=0;j<n;j++)
  21. {
  22. s=s+a[0][j];
  23. s=s+a[m-1][j];
  24. }
  25. for(int i=1;i<m-1;i++)
  26. {
  27. s=s+a[i][0];
  28. s=s+a[i][n-1];
  29. }
  30. return s;
  31. }
  32. void main()
  33. {
  34. int a[SIZE][SIZE],m,n;
  35. nhap(a,m,n);
  36. printf("%ld",tongbien(a,m,n));
  37. }
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