C Exercises: Display the value of an integer n is 1,0 and -1 for the value of an integer m

Last update on March 18 2025 13:31:55 (UTC/GMT +8 hours)

6. Signum Function Implementation

Write a C program to read the value of an integer m and display the value of n is 1 when m is larger than 0, 0 when m is 0 and -1 when m is less than 0.

Visual Presentation:

Sample Solution:

C Code:

#include <stdio.h>   // Include the standard input/output header file.

void main()
{
   int m,n;   // Declare two integer variables 'm' and 'n'.
   printf("Input the  value of m :");   // Prompt the user to input the value of 'm'.
   scanf("%d",&m);   // Read and store the user's input in 'm'.
   if(m!=0)   // Check if 'm' is not equal to 0.
   {
     if(m>0)
       n=1;   // If 'm' is greater than 0, set 'n' to 1.
     else
       n=-1;   // If 'm' is less than 0, set 'n' to -1.
   }
   else
     n=0;   // If 'm' is equal to 0, set 'n' to 0.
   printf("The value of m = %d \n",m);   // Print the value of 'm'.
   printf("The value of n = %d \n",n);   // Print the value of 'n'.
}

Output:

Input the  value of m :-5                                                                                     
The value of m = -5                                                                                           
The value of n = -1

Flowchart:

For more Practice: Solve these Related Problems:

• Write a C program to implement the signum function for an integer using bitwise operations.
• Write a C program to determine the sign of a number without using any conditional statements.
• Write a C program to apply a sign function on an array of integers and display the results.
• Write a C program to compute the sign of a number and output a custom message based on whether it’s positive, zero, or negative.

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