MCA Entrance Previous Year Question Bank

Find the value of m after the following statements are executed?

n = 235;

m = 0;

while (n > 0)

{m = m*10 + n MOD 10;

n = int(n/10);

}

find the final value of $z$ after executing the following code fragment:

z = 0

for (x = -1 to 1 step 1)

for (y = x+1 to 5 step 2)

z = z + y;

What is the output of the following C program?

#include <stdio.h>

#define sqr1(x) x*x

#define sqr2(x) (x) * (x)

int main() {

int a = 5;

printf("%d %d\n", sqr1(a+1), sqr2(a+1));

}

What is the output of the following C++ program?

#include<iostream>

using namespace std;

void modify (int &a, int b) {

a = a + b;

b = a - b;

}

int main() {

int x = 5, y = 10;

modify (x, y);

modify (x, y);

cout << "x=" << x << y << endl;

}

Given $q=20,r=30,s=40$, what will be the value of the integer $X$ after execution of the C statement:

$X=++q\ast r/s;$

What is the final value of x printed?

int x = 1;

if (x && --x) {

x += 2;

}

printf("%d", x);

Identify the variables in the following list: ‘x’, “x”, x, 5.

which one out of the following is not a flowchart symbol?