C Objective Questions Page 7 of 10

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Question: 121

#define x 10 * 10
#include <stdio.h>

int main()
{
    int a = x + x;
    printf("%d",a);
    return 0;
}

(A) 20
(B) 10
(C) 100
(D) 200

C Compiler IDE
Level: Practitioner Category of MCQ: macros

Question: 122

#define x 10 + 5
#include <stdio.h>

int main()
{
    int a = x * x;
    printf("%d",a);
    return 0;
}

(A) 225
(B) 65
(C) 85
(D) 155

C Compiler IDE
Level: Practitioner Category of MCQ: macros

Question: 123

#define x 10
#include <stdio.h>

int main()
{
    x = 20;
    printf("%d", x);
    return 0;
}

(A) 20
(B) 10
(C) 0
(D) Compilation Error

C Compiler IDE
Level: Practitioner Category of MCQ: macros

Question: 124

#define x 10
#include <stdio.h>

int main()
{
    x++;
    printf("%d", x);
    return 0;
}

(A) 10
(B) 11
(C) Compilation Error
(D) Not Defined

C Compiler IDE
Level: Practitioner Category of MCQ: macros

Question: 125

#define x 10
#define x 20
#include <stdio.h>

int main()
{
    printf("%d", x);
    return 0;
}

(A) 10
(B) 20
(C) 0
(D) Compilation Error

C Compiler IDE
Level: Practitioner Category of MCQ: macros

Question: 126

#define x 10;
#define x 20;
#include <stdio.h>

int main()
{
    printf("%d", x);
    return 0;
}

(A) 10
(B) 20
(C) 0
(D) Compilation Error

C Compiler IDE
Level: Practitioner Category of MCQ: macros

Question: 127

#define x 10

int main()
{
    printf("%d %c", x);
    return 0;
}

(A) 10 Garbage
(B) Garpage 10
(C) 10 0
(D) Compilation Error

C Compiler IDE
Level: Practitioner Category of MCQ: macros

Question: 128

#define x 65

int main()
{
    printf("%d %c", x, x);
    return 0;
}

(A) 65
(B) 65 65
(C) 65 a
(D) 65 A

C Compiler IDE
Level: Practitioner Category of MCQ: macros

Question: 129

#define x 65

int main()
{
    printf("%d", x+5+x/5);
    return 0;
}

(A) 27
(B) 79
(C) 83
(D) 0

C Compiler IDE
Level: Practitioner Category of MCQ: macros

Question: 130

//Note: this is compiled on gcc
#include <stdio.h>

int main()
{
int a = 1;
printf("%d %d %d", a, ++a, a++);
return 0;
}

(A) 1 2 2
(B) 1 3 3
(C) 3 3 1
(D) 1 3 2

C Compiler IDE
Level: Practitioner Category of MCQ: variables

Question: 131

#include <stdio.h>

int main()
{

int i, j = 10, k=12;
i = printf("Hello");

printf("%d", i);
i = printf("%d", i);

printf("%d", i);
i=printf("%d %d %d", i, j, k);

printf("%d", i);

return 0;
}

(A) Hello 0 0 0 10 12 0
(B) Hello 5 5 1 10 12 3
(C) Hello 6 6 6 10 12 3
(D) Hello 6 6 2 2 10 12 8

C Compiler IDE
Level: Practitioner Category of MCQ: variables

Question: 132

#include "stdio.h"

int main()
{
float a = 123/100;
printf("%f", a);
return 0;
}

(A) 1
(B) 1.0
(C) 1.0000
(D) 1.000000

C Compiler IDE
Level: Beginner Category of MCQ: datatype

Question: 133

#include <stdio.h>

int main()
{
int x = 50;
int y = 60;

printf("%d %d", x++, y--);
printf("#%d %d", ++x, --y);

return 0;
}

(A) 50 69#51 59
(B) 50 60#52 58
(C) 50 60#51 59
(D) 50 59#51 60

C Compiler IDE
Level: Practitioner Category of MCQ: variables

Question: 134

Which operator has the highest precedence?

(A) unary
(B) shift
(C) equality
(D) postfix

C Compiler IDE
Level: Beginner Category of MCQ: operators

Question: 135

#include <iostream>
using namespace std;
int main ()
{
	int x, y;
	x = 2;
	y = ++x * ++x;
	cout << x << y;
	x = 2;
	y = x++ * ++x;
	cout << x << y;
	return 0;
}

(A) 412412
(B) 41649
(C) 49416
(D) 41649

C Compiler IDE
Level: Expert Category of MCQ: operators

Question: 136

#include <iostream>
using namespace std;
main()
{
	double a = 21.09;
	float b = 10.30;
	int c ,d;
	c = (int) a;
	d = (int) b;
	cout << c <<'*'<< d;
	return 0;
}

(A) 2100
(B) 217.227
(C) 21*10
(D) 22*11

C Compiler IDE
Level: Practitioner Category of MCQ: operators

Question: 137

#include <iostream>
using namespace std;
  
int main()
{
    int i, j;
    j = 10;
    i = (j++, j++, j++);
    cout<<i;
    return 0;
}

(A) 0
(B) Compilation Error
(C) 12
(D) 10

C Compiler IDE
Level: Practitioner Category of MCQ: operators

Question: 138

#include <stdio.h>
#include <string.h>

int main()
{
struct xyz{
    char * n;
    int eos;
};

struct xyz x = {"cppbuzz", 2017};
struct xyz y=x;
printf("%d", printf("%s",y.n));

return 0;
}

(A) cppbuzz
(B) 7cppbuzz
(C) 8cppbuzz
(D) cppbuzz7

C Compiler IDE
Level: Practitioner Category of MCQ: structure

Question: 139

#include <stdio.h>
#include <string.h>

int main()
{
struct xyz{
    char * n;
    int eos;
};

struct xyz x = {"cppbuzz", 2017};
struct xyz y=x;
printf("%i", printf("%s",y.n));

return 0;
}

(A) cppbuzz7
(B) 7cppbuzz
(C) cppbuzz8
(D) 8cppbuzz

C Compiler IDE
Level: Beginner Category of MCQ: structure

Question: 140

#include <stdio.h>
#include <string.h>

int main()
{
struct xyz{
   char * n;
   int eos;
};

struct xyz x = {"cppbuzz", 2017};
struct xyz y=x;
printf(printf("%s",y.n), printf("%s",y.n));

return 0;
}

C Objective Questions Page 7 of 10

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