1- what is the output of this program?

int fn(int v)
{
if(v==1 || v==0)
return 1;
if(v%2==0)
return fn(v/2)+2;
else
return fn(v-1)+3;
}

main()
{
for fn(7); 
}

a) 10
b) 11
c) 12
d) 9

b)

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2- How long does this loop run: for(int x=0; x=3; x++) 

a) Never
b) once
c) Three times
d) Forever 

d)

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3- What does the following do: 

void afunction(int *x)
{
x=new int;
*x=12;
}
int main()
{
int v=10;
afunction(&v);
cout<<v;
}

a) Outputs 12
b) Outputs 10
c) rubbish 
d) Outputs the address of v

a)

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4- What is the output of the following code:

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

a) 1
b) 0
c) Code cannot compile

b)

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5- What will happen when the following code is run:

int x;
while(x<100)
{
cout<<x;
x++;
}

a) The computer will output "0123...99"
b) The computer will output "0123...100"
c) The output is undefined
d) generate error

c)

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6- Which of the following data structures uses the least memory? 

a) struct astruct
   {
   int x;
   float y;
   int v;
   };

b) union aunion
   {
   int x;
   float v;
   };
   
c) char array[10];

d) int x[3];

b)

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7- What does the line containing "break;" do in the following code?

void afunction()
{
if(1)
{
break;
a_function(); 
cout<<"Err"; 
}
}

a)  Breaks out of the if statement
b)  Exits the function
c)  Generate error
d)  Nothing 

c)

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8- Evaluate !(1&&1||1&&0) 

a) Error
b) True
c) False

c)

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9- What is the output of this program

main()
{
int x = strcmp("Test","test");
printf("%d",x);
}

a) positive value
b) negative value
c) zero

b)

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10- if we want the pointer to be constant and also 
    what it is pointing to is to be constant can we use
    this expression :  
     const int * const ip 

a) yes
b) no

a)

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11- write the output of this program 

main()
{
int x[10];
int z=sizeof(x);
printf("%d",z);
function(x);
}

void function(int x[])
{
printf(" %d",sizeof(x));
}

a) generate error
b) 20 20
c) 10 2
d) 20 2
e) 20 10

d)

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12- what is the output of this program 

main()
{
register int z=3;
int * p;
p=&z;
printf("%d",*p);
}

a) address of register
b) error
c) 3

b)

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13- what is the output of this program 

main()
{
int x=3;
int *p=&x;
int *q=&p;
printf("%d",**q);
} 

a) 3
b) address of x
c) address of p
d) error

d)

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14- what is the purpose of this function

int function(char *s)
{
char *p = s;
while (*p != '\0')
p++;
return p - s;
}

a) return last character 
b) return number of bytes in the string
c) return address of the charcter
d) return 0

b)

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15- what is the output of this program 

main()
{
float ans;
ans=5/10;
printf("%f",ans);
}

a) 0.5
b) 0.50000
c) 0.00000
d) 0

c)

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16- what is the output of this program

#include<stdio.h>
void function();
int y=4;
main()
{
y=5;
printf("%d",y);
function();
}

void function()
{
int y=5;
y=6;
printf("-%d",y);
}

a) 4-4
b) 4-6
c) 5-4
d) 5-6

d)

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17- Evaluate as true or false: !( 1&&0 || !1) 

a) True
b) False
c) Invalid statement

a)

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18- True or false, if you keep incrementing an integer, it     may become negative? 
a) True
b) False

a)

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19- What does strcat(an_array, "This"); do? 

a) Copies "This" into an_array
b) Adds "This" to the end of an_array
c) Compares an_array and "This"
d) there is no such function 

b)

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20- What is the final value of x when the code 
    int x; 
    for(x=0; x<10; x++) {} is run?

a) 10
b) 9
c) 0
d) 1

a)

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