Function

Question 1
Consider the following ANSI C program
 #include < stdio.h >
int foo(int x, int y, int q) 
    {
        if ((x < = 0) && (y < = 0))
        return q;
        if (x < = 0)
        return foo(x, y-q, q);
        if (y < = 0)
        return foo(x-q, y, q);
        return foo(x, y-q, q) + foo(x-q, y, q);
    }
int main( )
{
    int r = foo(15, 15, 10);
    printf("%d", r);
    return 0;
}
The output of the program upon execution is ____
A
10
B
60
C
180
D
220
GATE CSE 2021 SET-2   C Programming
Question 2
Consider the following ANSI C function:
int SomeFunction (int x, int y)
{
    if ((x==1) || (y==1)) return 1;
    if (x==y) return x;
    if (x > y) return SomeFunction(x-y, y);
    if (y > x) return SomeFunction (x, y-x);
 
} 
The value returned by SomeFunction(15, 255) is __________
A
17
B
15
C
255
D
5
GATE CSE 2021 SET-2   C Programming
Question 3
Consider the following ANSI C function:
 int SimpleFunction(int Y[], int n, int x)
{
int total = Y[0], loopIndex;
for (loopIndex=1; loopIndex<=n-1; loopIndex++)
    total=x*total +Y[loopIndex];
return total;
}
Let Z be an array of 10 elements with Z[i]=1, for all i such that 0\leq i \leq 9. The value returned by SimpleFunction(Z,10,2) is __________
A
1023
B
511
C
255
D
2047
GATE CSE 2021 SET-1   C Programming
Question 4
In the following procedure
 Integer procedure P(X,Y);
Integer X,Y;
value x;
begin
      K=5;
      L=8;
      P=x+y;
end
X is called by value and Y is called by name. If the procedure were invoked by the following program fragment
 K=0;
L=0;
Z=P(K,L);
then the value of Z will be set equal to
A
5
B
8
C
13
D
0
ISRO CSE 2020   C Programming
Question 5
What is the output in a 32 bit machine with 32 bit compiler?
 #include < stdio.h >
rer(int **ptr2, int **ptr1)
{
    int *ii;
    ii=*ptr2;
    *ptr2=*ptr1;
    *ptr1=ii;
    **ptr1*=**ptr2;
    **ptr2+=**ptr1;
}
void main(){
    int var1=5, var2=10;
    int *ptr1=&var1,*ptr2=&var2;
    rer(&ptr1,&ptr2);
    printf("%d %d",var2,var1);
}
A
60,70
B
50,50
C
50,60
D
60,50
ISRO CSE 2020   C Programming
Question 6
Consider the following recursive C function that takes two arguments
 unsigned int rer(unsigned int n, unsigned int r){
    if(n>0)return(n%r + rer(n/r,r));
    else retturn 0;
}
What is the return value of the function rer when it is called as rer(513,2)?
A
9
B
8
C
5
D
2
ISRO CSE 2020   C Programming
Question 7
Consider the following C functions.

The value returned by pp(3,4) is _____
A
9
B
81
C
16
D
125
GATE CSE 2020   C Programming
Question 8
Consider the following C functions.

The return value of fun2(5) is ______
A
55
B
25
C
35
D
10
GATE CSE 2020   C Programming
Question 9
Consider the following C program:

#include < stdio.h >
int r(){
 int static num=7;
 return num--;
}
int main() {
 for(r();r();r()) {
  printf("%d ",r());
  };
 return 0;
}
Which one of the following values will be displayed on execution of the programs?
A
41
B
52
C
63
D
630
GATE CSE 2019   C Programming
Question 10
Consider the following C program:

void convert(int n) {
  if (n<0)
    printf("%d",n);
  else {
    convert(n/2);
    printf("%d",n%2);
  }
}
Which one of the following will happen when the function convert is called with any positive integer n as argument?
A
It will print the binary representation of n and terminate.
B
It will print the binary representation of n in the reverse order and terminate.
C
It will print the binary representation of n but will not terminate.
D
It will not print anything and will not terminate.
GATE CSE 2019   C Programming


There are 10 questions to complete.

11 thoughts on “Function”

  1. Question number 12 of functions of c programming there is typing mistake in question itself . Instead f () you have written if. Please do change it 🙏

    Reply
  2. Question number 86 of functions in c programming
    Correct question
    int Trial (int a, int b, int c)
    {
    if ((a >= b) && (c =b) return Trial(a, c, b);
    else return Trial(b, a, c);
    }

    Reply

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