how to write C program to get pascal triangle?

Answer 1

<#include stdio.h>
<#include stdlib.h>
<#include conio.h>

String s = "":
int num = 121;
int sum = 0; int height;

printf("Enter height: "); scanf("%d", &height);
printf("%d \n", 1);

for (int i = 2; i < height; i++)
{
s = "";
printf("%d \n", num);
while (num / 10 > 0)
{
sum = num % 10 + num / 10 % 10;
num = num/10;
s = s + itoa(sum);
}
num = atoi("1" + s + "1");
}

Answer 2

First of all Input the order of the triangle i.e height.
Then dynamically allocate a 2-d matrix for that order.
Then fill that 2-d matrix with ones.

Start with the second row and follow it-
p[i][j] = p[i-1][j-1]+p[i-1][j];

now print the matrix in a triangular fashion and you are done
or do you need the codes ?

Answer 3

Here's a link to a contest with a similar attempt. Just modify their code so it outputs numbers and you're done.
http://www.wizardsolutionsusa.com/forum/showthread.php?t=797

Answer 4

1
121
1331
14641
....

You can do the following in a recursive manner.

Answer 5

#include
#include

void main()
{
int j,i,k;
clrscr();
for(i=1;i<3;i++)
{
printf("\n ");
for(j=1;j<=i;j++)
{
printf(" %d",j);

if(j=i)
{
for(k=j;k>=1;k--)
{
printf(" %d",k);
if(k==1)
break;
}


}


}
}
printf("\n%d %d",j,i);
getch();

}