MirroredRightAngledTriangle_Pattern.c

/*
Output-

1        1
12      21
123    321
1234  4321
1234554321

  */
#include<stdio.h>
int main() 
{ 
  int i,j;
  for(i=1;i<=5;i++)
  { 
    for(j=1;j<=5;j++) 
    { 
      if(j<=i)
        printf("%d",j);
      else 
        printf(" ");
    } 
    for(j=5;j>=1;j--)
      { 
        if(j<=i) 
          printf("%d",j); 
        else 
          printf(" "); 
      } 
    printf("\n"); 
  } 
}