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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int n;
  5.     printf("Enter the number of rows: \n");
  6.     scanf("%d",&n);
  7.  
  8.     /*int m;
  9.     printf("Enter the number of columns: \n");
  10.     scanf("%d",&m);*/
  11.       int k=1;
  12.     for(int i=1;i<=n;i++){
  13.        for(int j=1;j<=n;j++){
  14.  
  15.          if(i>=j){      
  16.          printf(" %d ",k);
  17.          k++;
  18.          }
  19.           else printf("   ");
  20.  
  21.          }
  22.  
  23.          printf("\n");
  24.      }
  25.  
  26. 	return 0;
  27. }
  28.  
Success #stdin #stdout 0s 5284KB
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stdin
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5
stdout
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Enter the number of rows: 
 1             
 2  3          
 4  5  6       
 7  8  9  10    
 11  12  13  14  15
https://ideone.com/SpjK1b
language:
C (gcc 8.3)
created:
4 days ago
visibility:
public

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