In this example we will Learn how to write a C Program to print Pascal’s triangle as below.

                1
              1    1
            1    2    1
          1    3    3    1
        1    4    6    4    1
      1    5    10    10    5    1

/**********************************************************************  
1. Pascal triangle in c without using array
2. C code to print Pascal triangle
3. Simple c program for Pascal triangle
4. C program to generate Pascal triangle
5. Pascal triangle program in c language
6. C program to print Pascal triangle using for loop

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#include<stdio.h>
long fact(int num){
  long f=1;
  int i=1;
  while(i<=num){
      f=f*i;
      i++;
    }
  return f;
}
int main(){
  int line,i,j;

  printf("Enter the no. of lines: ");
  scanf("%d",&line);

  for(i=0;i<line;i++){
      for(j=0;j<line-i-1;j++)
        printf(" ");

      for(j=0;j<=i;j++)
        printf("%ld ",fact(i)/(fact(j)*fact(i-j)));
      printf("\n");
    }
  return 0;
}


/*

OUTPUT:
Enter the no. of lines: 11
          1
         1 1
        1 2 1
       1 3 3 1
      1 4 6 4 1
     1 5 10 10 5 1
    1 6 15 20 15 6 1
   1 7 21 35 35 21 7 1
  1 8 28 56 70 56 28 8 1
 1 9 36 84 126 126 84 36 9 1
1 10 45 120 210 252 210 120 45 10 1

*/