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C Exercises: Check whether a given integer is positive even, negative even, positive odd or negative odd

C Basic Declarations and Expressions: Exercise-31 with Solution

Write a C program to check whether a given integer is positive even, negative even, positive odd or negative odd. Print even if the number is 0.

Pictorial Prresentation:

C Programming: Check whether a given integer is positive even, negative even, positive odd or negative odd

C Code:

#include <stdio.h>
int main() {
    int x;
	printf("Input an integer: ");
	scanf("%d", &x);

	
	   if(x == 0){
			printf("Positive\n");
		} 
		else if(x < 0 && (x%2) != 0) 
		{
			printf("Negative Odd\n");
		} 
		else if(x < 0 && (x%2) == 0) 
		{
			printf("Negative Even\n");
		} 
		else if(x > 0 && (x%2) != 0) 
		{
			printf("Positive Odd\n");
		} 
		else if(x > 0 && (x%2) == 0) 
		{
			printf("Positive Even\n");
		} 	
	
	return 0;
}

Sample Output:

Input an integer: 13                                                                                 
Positive Odd  

Flowchart:

C Programming Flowchart: Check whether a given integer is positive even, negative even, positive odd or negative odd

C Programming Code Editor:


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C Programming: Tips of the Day

Static variable inside of a function in C

The scope of variable is where the variable name can be seen. Here, x is visible only inside function foo().

The lifetime of a variable is the period over which it exists. If x were defined without the keyword static, the lifetime would be from the entry into foo() to the return from foo(); so it would be re-initialized to 5 on every call.

The keyword static acts to extend the lifetime of a variable to the lifetime of the programme; e.g. initialization occurs once and once only and then the variable retains its value - whatever it has come to be - over all future calls to foo().

Ref : https://bit.ly/3fOq7XP