C Exercises: Remove any negative sign in front of a number

Last update on September 18 2025 12:37:34 (UTC/GMT +8 hours)

Remove a negative sign from a number

Write a C program to remove any negative sign in front of a number.

Pictorial Presentation:

Sample Solution:

C Code:

#include<stdio.h>
#define N 10
// Function prototype declaration
int abs_val(int);

int main() {
    int x, result;

    // Prompt for user input
    printf("Input a value (negative): \n");
    scanf("%d", &x);
    printf("Original value = %d", x);

    // Call the abs_val function and store the result
    result = abs_val(x);

    // Output the result
    printf("\nAbsolute value = %d", result);

    return 0;
}

// Function to calculate the absolute value
int abs_val(int y) {
    if(y < 0)
        return(y * -1);
    else
        return(y);
}

Sample Output:

Input a value (negative): 
Original value = -253
Absolute value = 253

Flowchart:

For more Practice: Solve these Related Problems:

• Write a C program to compute the absolute value of a number without using the abs() function.
• Write a C program to remove a negative sign from an integer input using bitwise operations.
• Write a C program to convert a negative floating-point number to its positive equivalent without library functions.
• Write a C program to conditionally remove the negative sign from a number and display a formatted output.

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