Hot questions in Programming in C / GATE Overflow for GATE CSE

78 votes

4 answers

21

GATE CSE 2006 | Question: 57
Consider this C code to swap two integers and these five statements: the code void swap (int *px, int *py) { *px = *px - *py; *py = *px + *py; *px = *py - *px; } S1: will generate a compilation error S2: may generate a ... procedure correctly for some but not all valid input pointers S5: may add or subtract integers and pointers S1 S2 and S3 S2 and S4 S2 and S5

Consider this C code to swap two integers and these five statements: the codevoid swap (int *px, int *py) { *px = *px - *py; *py = *px + *py; *px = *py - *px; }S1...

Rucha Shelke

21.3k views

Rucha Shelke asked Sep 26, 2014

41 votes

6 answers

22

GATE CSE 2016 Set 2 | Question: 37
Consider the following program: int f (int * p, int n) { if (n <= 1) return 0; else return max (f (p+1, n-1), p[0] - p[1]); } int main () { int a[] = {3, 5, 2, 6, 4}; printf(" %d", f(a, 5)); } Note: $\max (x, y)$ returns the maximum of $x$ and $y$. The value printed by this program is ________.

Consider the following program:int f (int * p, int n) { if (n <= 1) return 0; else return max (f (p+1, n-1), p[0] - p ); } int main () { int a[] = {3, 5, 2, 6, 4}; ...

Akash Kanase

13.8k views

Akash Kanase asked Feb 12, 2016

29 votes

2 answers

23

GATE CSE 2000 | Question: 2.20
The value of $j$ at the end of the execution of the following C program: int incr (int i) { static int count = 0; count = count + i; return (count); } main () { int i, j; for (i = 0; i <= 4; i++) j = incr (i); } is: $10$ $4$ $6$ $7$

The value of $j$ at the end of the execution of the following C program:int incr (int i) { static int count = 0; count = count + i; return (count); } main () { int i, j; ...

Kathleen

15.3k views

Kathleen asked Sep 14, 2014

5 votes

2 answers

24

GATE CSE 2024 | Set 2 | Question: 3
Consider the following $\text{C}$ program. Assume parameters to a function are evaluated from right to left. #include <stdio.h> int g( int p) { printf("%d", p); return p; } int h(i nt q) { printf("%d", q) ... one of the following options is the CORRECT output of the above $\text{C}$ program? $20101020$ $10202010$ $20102010$ $10201020$

Consider the following $\text{C}$ program. Assume parameters to a function are evaluated from right to left.#include <stdio.h int g( int p) { printf("%d", p); return p; }...

Arjun

4.3k views

Arjun asked Feb 16

41 votes

4 answers

25

GATE CSE 2015 Set 3 | Question: 54
Consider the following C program: #include<stdio.h> int f1(void); int f2(void); int f3(void); int x=10; int main() { int x=1; x += f1() + f2 () + f3() + f2(); printf("%d", x); return 0; } int f1() { int x = 25; x++; return x;} int f2() { static int x = 50; x++; return x;} int f3() { x *= 10; return x;} The output of the program is ______.

Consider the following C program:#include<stdio.h int f1(void); int f2(void); int f3(void); int x=10; int main() { int x=1; x += f1() + f2 () + f3() + f2(); printf("%d", ...

go_editor

12.1k views

go_editor asked Feb 16, 2015

5 votes

3 answers

26

GATE CSE 2024 | Set 2 | Question: 26
What is the output of the following $\text{C}$ program? #include <stdio.h> int main() { double a[2]=20.0,25.0,* p,* q; p=a ; q=p+1 ; printf("%d,%d", (int) (q-p),( int)(* q- * p)); return 0; $4,8$ $1,5$ $8,5$ $1,8$

What is the output of the following $\text{C}$ program?#include <stdio.h int main() { double a =20.0,25.0,* p,* q; p=a ; q=p+1 ; printf("%d,%d", (int) (q-...

Arjun

3.4k views

Arjun asked Feb 16

62 votes

3 answers

27

GATE CSE 2001 | Question: 2.18
Consider the following three C functions: $[P1]$ int *g(void) { int x = 10; return (&x); } $[P2]$ int *g(void) { int *px; *px = 10; return px; } $[P3]$ int *g(void) { int *px; px = (int*) malloc (sizeof(int)); *px = 10; ... of the above three functions are likely to cause problems with pointers? Only $P3$ Only $P1$ and $P3$ Only $P1$ and $P2$ $P1, P2$ and $P3$

Consider the following three C functions:$[P1]$ int *g(void) { int x = 10; return (&x); }$[P2]$ int *g(void) { int *px; *px = 10; return px; }$[P3]$ int *g(void) { int *p...

Kathleen

24.7k views

Kathleen asked Sep 14, 2014

2 votes

3 answers

28

GATE CSE 2024 | Set 1 | Question: 9
Consider the following $\mathrm{C}$ program: #include <stdio.h> void fX (); int main(){ fX(); return 0 }; void fX () { char a; if ((a=g e t c h a r()) ! = '\n') fX(); if (a ! ... program will not terminate The program will terminate with no output The program will terminate with $4321$ as output The program will terminate with $1234$ as output

Consider the following $\mathrm{C}$ program:#include <stdio.h void fX (); int main(){ fX(); return 0 };void fX () { char a; if ((a=g e t c h a r()) ! = '\n') ...

Arjun

3.4k views

Arjun asked Feb 16

7 votes

2 answers

29

GATE CSE 2024 | Set 2 | Question: 23
Consider the following $\mathrm{C}$ function definition. int f X(char * a) { char * b = a; while (*b) b ++; return b - a; } Which of the following statements is/are TRUE? The function call $\text{f X("a b c d''}$) will ... ${ }^{*} \mathrm{C}=$ "abcd" in main (), the function call $\mathrm{fX}(\mathrm{c})$ will always return a value

Consider the following $\mathrm{C}$ function definition.int f X(char * a) { char * b = a; while (*b) b ++; return b - a; }Which of the following statements is/ar...

Arjun

2.7k views

Arjun asked Feb 16

49 votes

5 answers

30

GATE IT 2007 | Question: 27
The function f is defined as follows: int f (int n) { if (n <= 1) return 1; else if (n % 2 == 0) return f(n/2); else return f(3n - 1); } Assuming that arbitrarily large integers can be passed as a parameter to the function, consider the following ... values of $n \geq 1$. Which one of the following options is true of the above? i and iii i and iv ii and iii ii and iv

The function f is defined as follows:int f (int n) { if (n <= 1) return 1; else if (n % 2 == 0) return f(n/2); else return f(3n - 1); }Assuming that arbitrarily large int...

Ishrat Jahan

13.2k views

Ishrat Jahan asked Oct 29, 2014

26 votes

3 answers

31

GATE CSE 2008 | Question: 18
Which combination of the integer variables $x, y,$ and $z$ makes the variable $a$ get the value $4$ in the following expression? $a=(x > y)?((x > z) ?x:z): ((y > z) ?y:z)$ $x=3, y=4, z=2$ $x=6, y=5, z=3$ $x=6, y=3, z=5$ $x=5, y=4, z=5$

Which combination of the integer variables $x, y,$ and $z$ makes the variable $a$ get the value $4$ in the following expression?$$a=(x y)?((x z) ?x:z): ((y z) ?y:z)$$$...

Kathleen

12.7k views

Kathleen asked Sep 11, 2014

2 votes

2 answers

32

GATE CSE 2024 | Set 1 | Question: 38
Consider the following $\mathrm{C}$ ... the return value is less than $2^{10}$ If the inputs are $x=10, y=20$, then the return value is greater than $2^{20}$

Consider the following $\mathrm{C}$ function definition.int f (int x, int y){ for (int i=0 ; i<y ; i++ ) { x= x + x + y; } return x; }Which of the following stateme...

Arjun

2.5k views

Arjun asked Feb 16

54 votes

7 answers

33

GATE CSE 2017 Set 2 | Question: 43
Consider the following snippet of a C program. Assume that swap $(\&x, \&y)$ exchanges the content of $x$ and $y$: int main () { int array[] = {3, 5, 1, 4, 6, 2}; int done =0; int i; while (done==0) { done =1; for (i=0; i<=4; i ... i-1]) { swap(&array[i], &array[i-1]); done =0; } } } printf( %d , array[3]); } The output of the program is _______

Consider the following snippet of a C program. Assume that swap $(\&x, \&y)$ exchanges the content of $x$ and $y$:int main () { int array[] = {3, 5, 1, 4, 6, 2}; int done...

Arjun

17.3k views

Arjun asked Feb 14, 2017

101 votes

6 answers

34

GATE IT 2006 | Question: 49
Which one of the choices given below would be printed when the following program is executed ? #include <stdio.h> struct test { int i; char *c; }st[] = {5, "become", 4, "better", 6, "jungle", 8, "ancestor", 7, " ... $\text{etter, u, 6, ungle}$ $\text{cetter, k, 6, jungle}$ $\text{etter, u, 8, ncestor}$

Which one of the choices given below would be printed when the following program is executed ?#include <stdio.h struct test { int i; char *c; }st[] = {5, "become", 4, "be...

Ishrat Jahan

27.4k views

Ishrat Jahan asked Oct 31, 2014

0 votes

1 answer

35

Which of the following is not a member of a class ?
A. Static function B. Friend Function C. Const Function D. Virtual function

A. Static functionB. Friend FunctionC. Const FunctionD. Virtual function

im.raj

57.6k views

im.raj asked May 6, 2016

41 votes

5 answers

36

GATE CSE 2012 | Question: 3
What will be the output of the following C program segment? char inChar = 'A'; switch ( inChar ) { case 'A' : printf ("Choice A \ n"); case 'B' : case 'C' : printf ("Choice B"); case ... : printf ("No Choice"); } No Choice Choice A Choice A Choice B No Choice Program gives no output as it is erroneous

What will be the output of the following C program segment?char inChar = 'A'; switch ( inChar ) { case 'A' : printf ("Choice A \ n"); case 'B' : case 'C' : printf ("Choic...

gatecse

11.1k views

gatecse asked Aug 5, 2014

29 votes

7 answers

37

GATE CSE 2016 Set 2 | Question: 12
The value printed by the following program is _______. void f (int * p, int m) { m = m + 5; *p = *p + m; return; } void main () { int i=5, j=10; f (&i, j); printf ("%d", i+j); }

The value printed by the following program is _______.void f (int * p, int m) { m = m + 5; *p = *p + m; return; } void main () { int i=5, j=10; f (&i, j); p...

Akash Kanase

9.0k views

Akash Kanase asked Feb 12, 2016

62 votes

5 answers

38

GATE CSE 2014 Set 1 | Question: 10
Consider the following program in C language: #include <stdio.h> main() { int i; int*pi = &i; scanf("%d",pi); printf("%d\n", i+5); } Which one of the following statements is TRUE? Compilation fails. Execution ... $5$ more than the address of variable $i$. On execution, the value printed is $5$ more than the integer value entered.

Consider the following program in C language:#include <stdio.h main() { int i; int*pi = &i; scanf("%d",pi); printf("%d\n", i+5); }Which one of the following statements is...

go_editor

17.7k views

go_editor asked Sep 26, 2014

45 votes

4 answers

39

GATE CSE 2012 | Question: 48
Consider the following C code segment. int a, b, c = 0; void prtFun(void); main() { static int a = 1; /* Line 1 */ prtFun(); a += 1; prtFun(); printf( \n %d %d , a, b); } void prtFun(void) { static int a = 2; /* Line 2 */ int b = 1; a += + ... $\begin{array}{lll} 3 & & 1 & \\ 5 & & 2 & \\ 5 & & 2 & \end{array}$

Consider the following C code segment.int a, b, c = 0; void prtFun(void); main() { static int a = 1; /* Line 1 */ prtFun(); a += 1; prtFun(); printf(“ \n %d %d ”, a, ...

gatecse

14.1k views

gatecse asked Sep 29, 2014

33 votes

8 answers

40

GATE CSE 1991 | Question: 01,x
Consider the following recursive definition of $fib$: fib(n) := if n = 0 then 1 else if n = 1 then 1 else fib(n-1) + fib(n-2) The number of times $fib$ is called (including the first call) for evaluation of $fib(7)$ is___________.

Consider the following recursive definition of $fib$:fib(n) := if n = 0 then 1 else if n = 1 then 1 else fib(n-1) + fib(n-2)The number of times $fib$ is called (includin...

Kathleen

10.4k views

Kathleen asked Sep 12, 2014

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