C Program to print a pattern

In this program we will print the pattern as shown below using C programming language.

The pattern is as follows:


1
2 1
1 2 3
4 3 2 1
1 2 3 4 5

Codes of the C program

#include
void main()
{
int i,j,x=1;
for(i=1;i<=5;i++)
{
for(j=1;j<=i;j++)
{
printf("%d",x);
if(i%2==0)
x--;
else
x++;
}
if(i%2==0)
x=1;
else
x=j;
printf("\n");
}
getch();
}

Another pattern using C program

1
3
6
10
15

#include
void main()
{
int i,x=1,y=2;;
for(i=0;i<5;i++)
{
printf("%d\n",x);
x=x+y;
y++;
}
getch();
}