Program to show table of a number using functions.

 Program to show table of a number using functions.
#include<stdio.h>
#include<conio.h>
void main()
{
void table();
clrscr();
table();
getch();
}
void table()
{
int n,i,r;
printf(“enter a no to know table: ”);
scanf(“%d”,&n);
for(i=1;i<=10;i++)
{
r=n*i;
printf(“%d*%d=%d\n”,n,i,r);
}
}
Output:
enter a no to know table: 2
2*1=2
2*2=4
2*3=6
2*4=8
2*5=10
2*6=12
2*7=14
2*8=16
2*9=18
2*10=20




Program to show call by value.
#include<stdio.h>
#include<conio.h>
void main()
{
int a,b,swap();
clrscr();
a=5;
b=10;
printf(”value of a=%d & value of b=%d before swap ”,a,b);
swap(a,b);
printf(“\nvalue of a =%d & b=%d after swap”,a,b);
getch();
}
int swap(int x,int y)
{
int temp;
temp=x;
x=y;
y=temp;
}
Output:
value of a=5 & value of b=10 before swap
value of a=5 & b=10 after swap