Question

Write a c program that will read the value of x and evaluate of the following function y=1 for 0>x; 0 for x=0 ;-1 for x<0

Answer 1

Answer:

for example

int x=-1;

if(x>0) y=1;

else if (x=0) y=0;

else if (x<0) y=-1;

print(x);

Answer 2

Concept:

Depending on whether the test expression is true or false,the if...else ladder allows you to check between various test expressions and statements.

Given:

$y = 1$ for $0 > x$

$0$ for $x=0$

$-1$ for $x < 0$

Find:

Write a C program for the given statement.

Solution:

#include <stdio.h>

int main() {

   int x, y;

   printf("Enter the value of x: ");

   scanf("%d",&x);

   if $(x > 0)$

      $y = 1;$

   else if $(x < 0)$

       $y = -1;$

   else if $(x == 0)$

       $y = 0;$

   printf("y = %d",y);

   return 0;

}

Output:

Enter the value of x: 7

y = 1

Enter the value of x: -15

y = -1

Enter the value of x: 0

y = 0