C program for Pascal triangle

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Program for Pascal triangle in c

#include<stdio.h>

int main(){

  int line,i,j,k;

  printf("Enter the no. of lines: ");

  scanf("%d",&line);

  for(i=1;i<=line;i++){

      for(j=1;j<=line-i;j++)

           printf(" ");

      for(k=1;k<i;k++)

      printf("%d",k);

      for(k=i;k>=1;k--)

      printf("%d",k);

      printf("\n");

  }

  return 0;

}

Sample output:
Enter the no. of lines: 5

   121

  12321

 1234321

123454321

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