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  1.  /* tao hinh chu nhat n hang, m cot 
  2. *  *  *  *   *
  3. *            *
  4. *            *
  5. *            *
  6. *  *  *  *   *
  7.  thuat toan :b1 dau vao:do dai hai canh m,n
  8.              b2:tinh toan
  9.              tao hai vong lap i=1 toi n va j=1 toi m
  10.              vong lap thu 2, j>1va j<m-1; in ra khoang trang
  11.                             con lai in ra * 
  12.              b3.ket qua la hinh tren
  13.          */
  14. #include<stdio.h>
  15.  
  16. int nhap(int &n,int &m)  //ham nhap 
  17. {     
  18.  	printf("nhap do dai hai canh n,m:");
  19.  	scanf("%d%d",&n,&m);
  20. }
  21. int main()
  22. {
  23. int a, b;
  24. nhap(a,b);
  25. for(int i=1;i<a;i++){
  26. 	for(int j=1;j<b;j++)
  27. 	{
  28. 		if(j>=2 &&j<b)
  29. 		{
  30. 			printf("    ");
  31. 		}
  32. 		else printf(" * ");
  33. 	}printf("\n");
  34. }
  35.  
  36. return 0;
  37. }             
  38.  
Success #stdin #stdout 0s 15240KB
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nhap do dai hai canh n,m: *
https://ideone.com/8fWZlR
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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