Nested if-else statement in C-language

Nested if-else statement:         An if-else statement is embedded within another if-else statement such representation is called as nested if-else statement.  The general format of nested if-else statement is:

           

              Syntax:           if(condition1)

                                    {

                                                if(condition2)

    {

     Statements-1 to be executed if condition2 is true

                                                }

                                                else

                                                {

                                                Statements-2 to be executed if condition2 is false

                                                }

                                    }

                                    else

                                    {

                                               Statements-3 to be executed if condition1 is false

                                    }

                                    Statements-X;

Ø  First condition1 is evaluated.  It produces either TRUE or FALSE.

Ø  If the condition1 is TRUE, then control enters into condition2 section. Condition2 is evaluated and produces either TRUE or FALSE.

o   If Condition2 is TRUE, then Statements-1 are executed and then control reaches to Statements-X. 

o   If Condition2 outcome is FALSE, then Statements-2 are executed and then control reaches to Statements-X.

Ø  If the condition1 outcome is FALSE, then Statements-3 are executed and then control reaches to Statements-X.

/* PROGRAM TO PRINT LARGEST NUMBER FROM THE GIVEN THREE NUMBERS */

#include<stdio.h>

#include<conio.h>

main()

{

            int x,y,z;

            clrscr();

            printf("\nEnter Three Numbers:");

            scanf("%d%d%d",&x,&y,&z);

            if(x>y)

            {

                        if(x>z)

                                    printf("\nMaximum Number:%d",x);

                        else

                                    printf("\nMaximum Number:%d",z);

            }

            else

            {

                        if(y>=z)

                                    printf("\nMaximum Number:%d",y);

                        else

                                    printf("\nMaximum Number:%d",z);

            }

}