September 20, 2022

CurledMark

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C has the following conditional statements: Use if to specify a block of code to be executed, if a specified condition is true. Use else to specify a block of code to be executed, if the same condition is false. Use else if to specify a new condition to test, if the first condition is false.

If else is a Keyword used to implement conditional construct. Construct means a block.

if else block in c

Syntax:

if(condition)

{

// control comes here when the condition is true
}

else

{

// control comes here when the condition is false

}

 

  • Accept a number, output will be less than 50 or greater than 50.

#include<stdio.h>

int main()

{

       int x;

       Printf(“Enter a number:”);

       Scanf(“%d”,&x);

        if(x<50)

        {

               Printf(“Less than 50”);

        }

              else

        {

                         if(x>50)

                        {

                             Printf(“Greater than 50”);

                        }

                            else

                        {

                              Printf(“Equal to 50”);

                        }

      }

            return 0;

}


The above program depicts the if-else ladder concept.

There is another way to write the same program by using only if.


#include<stdio.h>

int main()

{

int x;

Printf(“Enter a number:”);

Scanf(“%d”,&x);

if(x<50)

{

Printf(“Less than 50”);

}

if(x>50)

{

Printf(“Greater than 50”);

}

if(x==50)

{

Printf(“Equal to 50”);

}

return 0;

}

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