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  1. #include <stdio.h>
  2. int main()
  3. {
  4.  int i,j,k,r;
  5.  printf("enter number of rows: ");
  6.  scanf("%d",&r);
  7.  for(i=1; i<=r; i++)
  8.  {
  9.    for(k=r;k>1;k--)
  10.    printf(" ");
  11.    for(j=1;j<=i;j++)
  12.    printf("%d ",i);
  13.    r--;
  14.    printf("\n");
  15.  }
  16.   return 0;
  17. }
  18.  
  19.  
Success #stdin #stdout 0s 5280KB
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enter number of rows:          1 
        2 2 
       3 3 3 
      4 4 4 4 
     5 5 5 5 5
https://ideone.com/tjdnCG
language:
C (gcc 8.3)
created:
7 hours ago
visibility:
public

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