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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int n;
  5.  
  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<=i;k++){
  17.  
  18.            printf(" %d ",k);
  19.  
  20.          }
  21.        for(int d=i-1;d>=1;d--){
  22.           printf(" %d ",d);
  23.        }
  24.          printf("\n");
  25.     }
  26.  
  27. 	return 0;
  28. }
  29.  
Success #stdin #stdout 0s 5320KB
comments (?)
stdin 
7
stdout 
Enter the number of rows: 
 1 
 1  2  1 
 1  2  3  2  1 
 1  2  3  4  3  2  1 
 1  2  3  4  5  4  3  2  1 
 1  2  3  4  5  6  5  4  3  2  1 
 1  2  3  4  5  6  7  6  5  4  3  2  1
https://ideone.com/O2cSB1
language:
C (gcc 8.3)
created:
7 days ago
visibility:
public

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