C If else - Aptitude Questions & Answers

#include <stdio.h>
void main()
{
	if(!printf(""))
		printf("Okkk");
	else
		printf("Hiii");
}
        

1. Okkk
2. Hiii
3. Error
4. None

#include <stdio.h>
void main()
{
	int x=22;
	if(x=10)
		printf("TRUE");
	else
		printf("FALSE");
}
        

1. TRUE
2. FALSE
3. Error
4. None

#include <stdio.h>
void main()
{
	char val=1;
	if(val--==0)
		printf("TRUE");
	else
		printf("FALSE");
}
        

1. FALSE
2. Error
3. TRUE
4. None

#include <stdio.h>
void main()
{
	float a=10.5;

	printf("\n===FIRST CONDITION\n");
	if(sizeof(a)==sizeof(10.5))
		printf("Matched !!!");
	else
		printf("Not matched !!!");

	printf("\n===SECOND CONDITION\n");
	if(sizeof(a)==sizeof(10.5f))
		printf("Matched !!!");
	else
		printf("Not matched !!!");

	printf("\n===THIRD CONDITION\n");
	if(sizeof((double)a)==sizeof(10.5))
		printf("Matched !!!");
	else
		printf("Not matched !!!");

	printf("\n===FOURTH CONDITION\n");
	if(a==10.5f)
		printf("Matched !!!");
	else
		printf("Not matched !!!");

	printf("\n");
}
        

#include <stdio.h>
int main()
{
	int a=10;
	if(a==10)
	{
		printf("Hello...");
		break;
		printf("Ok");
	}
	else
	{
		printf("Hii");
	}
	return 0;
}

1. Hello...
2. Hello...OK
3. OK
4. Error

#include <stdio.h>
int main()
{
	if( (-100 && 100)||(20 && -20) )
		printf("%s","Condition is true.");
	else
		printf("%s","Condition is false.");
	return 0;
}

1. Condition is true.
2. Condition is false.
3. No output
4. ERROR

#include <stdio.h>
#define TRUE 1
int main()
{
	if(TRUE)
		printf("1");
		printf("2");
	else
		printf("3");
		printf("4");
	return 0;
}

1. ERROR
2. 1
3. 12
4. 2

#include <stdio.h>
int main()
{
	int pn=100;
	if(pn>20)
		if(pn<20)
			printf("Heyyyyy");
	else
		printf("Hiiiii");
	return 0;
}

1. No output
2. Hiiiii
3. Heyyyyy
4. HeyyyyyHiiiii

1)  if( a==10 )   printf("IncludeHelp");
2)  if( 10==a )   printf("IncludeHelp");
3)  if( a=10  )   printf("IncludeHelp");
4)  if( 10=a  )   printf("IncludeHelp");

1. 3 and 4.
2. 3 only.
3. 4 only.
4. 2,3 and 4.

#include <stdio.h>
int main()
{
	int a=10;
	if(10L == a)
		printf("10L");
	else if(10==a)
		printf("10");
	else
		printf("0");
	return 0;
}

1. 10.
2. 10L.
3. 10L10.
4. ERROR.