C Exercises: Check whether a given temperatures is less than 0 and the other is greater than 100

Last update on July 28 2025 12:51:20 (UTC/GMT +8 hours)

6. Temperature Range Check

Write a C program that checks two given temperatures and returns true if one temperature is less than 0 and the other is greater than 100, otherwise it returns false.

C Code:

#include <stdio.h>  // Include standard input/output library
#include <stdlib.h> // Include standard library for absolute value function

int test(int temp1, int temp2); // Declare the function 'test' with two integer parameters

int main(void)
{
    // Call the function 'test' with arguments 120 and -1, and print the result
    printf("%d", test(120, -1));

    // Print a newline for formatting
    printf("\n");

    // Call the function 'test' with arguments -1 and 120, and print the result
    printf("%d", test(-1, 120));

    // Print a newline for formatting
    printf("\n");

    // Call the function 'test' with arguments 2 and 120, and print the result
    printf("%d", test(2, 120));
}

// Function definition for 'test'
int test(int temp1, int temp2)
{
    // Check if either of the following conditions are true:
    // 1. temp1 is less than 0 and temp2 is greater than 100
    // 2. temp2 is less than 0 and temp1 is greater than 100
    // Return 1 (true) if either condition is true, otherwise return 0 (false).
    return temp1 < 0 && temp2 > 100 || temp2 < 0 && temp1 > 100;
}

Sample Output:

1
1
0

Explanation:

int test(int temp1, int temp2) {
  return temp1 < 0 && temp2 > 100 || temp2 < 0 && temp1 > 100;
}

The above function ‘test’ takes in two integer arguments ‘temp1’ and ‘temp2’. It returns 1 (true) if ‘temp1’ is negative and ‘temp2’ is greater than 100, or if ‘temp2’ is negative and ‘temp1’ is greater than 100, else it returns 0 (false).

Time complexity and space complexity:

The time complexity of the function is O(1), which means it takes a constant amount of time to execute, regardless of the input size.

The space complexity of the function is O(1), as it only uses a constant amount of memory, regardless of the input size.

Pictorial Presentation:

Flowchart:

For more Practice: Solve these Related Problems:

• Write a C program that checks two given temperatures and returns true if one is below -20 and the other above 80.
• Write a C program to check if one temperature is below freezing and the other exceeds boiling point.
• Write a C program that takes two temperatures and returns true if the difference between them exceeds 150 degrees.
• Write a C program that returns true if one of two temperature readings is negative and the other is positive with an absolute value greater than 50.

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