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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int n;
  5.     int d=1;
  6.     printf("Enter the number of rows: \n");
  7.     scanf("%d",&n);
  8.     for(int i=1;i<=n;i++){
  9.         for( int j=1;j<=n-i;j++){
  10.  
  11.                printf("   ");
  12.  
  13.          }
  14.  
  15.  
  16.         for(int k=1;k<2*i;k++){
  17.  
  18.            printf(" %d ",d);
  19.             d=d+1;
  20.          }
  21.          printf("\n");
  22.     }
  23.  
  24. 	return 0;
  25. }
  26.  
Success #stdin #stdout 0.01s 5320KB
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stdin
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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  16 
       17  18  19  20  21  22  23  24  25 
    26  27  28  29  30  31  32  33  34  35  36 
 37  38  39  40  41  42  43  44  45  46  47  48  49
https://ideone.com/Eystwq
language:
C (gcc 8.3)
created:
7 days ago
visibility:
public

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