Most answered questions in Programming in C / GATE Overflow for GATE CSE

49 votes

5 answers

41

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

62 votes

5 answers

42

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

17.6k views

go_editor asked Sep 26, 2014

31 votes

5 answers

43

GATE CSE 1999 | Question: 2.5
Given the programming constructs assignment for loops where the loop parameter cannot be changed within the loop if-then-else forward go to arbitrary go to non-recursive procedure call recursive procedure/function call repeat loop, which constructs will you not include in a programming language ... $\text{(vi), (vii), (viii)}$ $\text{(iii), (vii), (viii)}$

Given the programming constructsassignmentfor loops where the loop parameter cannot be changed within the loopif-then-elseforward go toarbitrary go tonon-recursive proced...

Kathleen

12.7k views

Kathleen asked Sep 23, 2014

38 votes

5 answers

44

GATE CSE 2005 | Question: 1, ISRO2017-55
What does the following C-statement declare? int (*f) (int * ); A function that takes an integer pointer as argument and returns an integer A function that takes an integer as argument and returns an integer pointer A pointer ... pointer as argument and returns an integer A function that takes an integer pointer as argument and returns a function pointer

What does the following C-statement declare?int (*f) (int * );A function that takes an integer pointer as argument and returns an integerA function that takes an integer ...

Kathleen

20.9k views

Kathleen asked Sep 22, 2014

26 votes

5 answers

45

GATE CSE 2004 | Question: 90
Choose the best matching between the programming styles in Group 1 and their characteristics in Group 2. ... $P-3\quad Q-4 \quad R-1\quad S-2$ $P-3\quad Q-4\quad R-2\quad S-1$

Choose the best matching between the programming styles in Group 1 and their characteristics in Group 2.$$\begin{array}{|ll|ll|}\hline \rlap{\textbf{Group 1}} & & \rlap{...

Kathleen

7.1k views

Kathleen asked Sep 18, 2014

32 votes

5 answers

46

GATE CSE 2004 | Question: 32
Consider the following program fragment for reversing the digits in a given integer to obtain a new integer. Let $n = d_1\, d_2\, \ldots\, d_m$. int n, rev; rev = 0; while(n > 0) { rev = rev * 10 + n%10; n = n/10; } The loop invariant condition at the end ... $n=d_1\, d_2 \,\ldots\, d_m \qquad \mathbf{or} \qquad \text{rev} =d_m \,\ldots\, d_2\, d_1$

Consider the following program fragment for reversing the digits in a given integer to obtain a new integer.Let $n = d_1\, d_2\, \ldots\, d_m$.int n, rev; rev = 0; while(...

Kathleen

12.3k views

Kathleen asked Sep 18, 2014

40 votes

5 answers

47

GATE CSE 2003 | Question: 89
Consider the C program shown below: #include<stdio.h> #define print(x) printf("%d", x) int x; void Q(int z) { z+=x; print(z); } void P(int *y) { int x = *y + 2; Q(x); *y = x - 1; print(x); } main(void) { x = 5; P(&x); print(x); } The output of this program is: $12 \ 7 \ 6$ $22 \ 12 \ 11$ $14 \ 6 \ 6$ $7 \ 6 \ 6$

Consider the C program shown below:#include<stdio.h #define print(x) printf("%d", x) int x; void Q(int z) { z+=x; print(z); } void P(int *y) { int x = *y + 2; Q(x); *y = ...

Kathleen

12.6k views

Kathleen asked Sep 17, 2014

40 votes

5 answers

48

GATE CSE 2003 | Question: 73
The following program fragment is written in a programming language that allows global variables and does not allow nested declarations of functions. global int i=100, j=5; void P(x) { int i=10; print(x+10); i=200; j=20; print (x); } main() {P(i ... by need parameter passing mechanism, the values printed by the above program are: $115, 220$ $25, 220$ $25, 15$ $115, 105$

The following program fragment is written in a programming language that allows global variables and does not allow nested declarations of functions.global int i=100, j=5...

Kathleen

9.4k views

Kathleen asked Sep 17, 2014

41 votes

5 answers

49

GATE CSE 2000 | Question: 1.11
The following C declarations: struct node { int i: float j; }; struct node *s[10]; define s to be: An array, each element of which is a pointer to a structure of type node A structure of $2$ ... $3$ fields: an integer, a float, and an array of $10$ elements An array, each element of which is a structure of type node

The following C declarations:struct node { int i: float j; }; struct node *s[10];define s to be:An array, each element of which is a pointer to a structure of type nodeA ...

Kathleen

19.4k views

Kathleen asked Sep 14, 2014

28 votes

5 answers

50

GATE CSE 2008 | Question: 61
Choose the correct option to fill $?1$ and $?2$ so that the program below prints an input string in reverse order. Assume that the input string is terminated by a new line character. void reverse(void) { int c; if(?1) reverse(); ?2 } main() { printf("Enter text"); ... $?2$ is $putchar(c);$ $?1$ is $((c = getchar() ) != '\setminus n')$ $?2$ is $putchar(c);$

Choose the correct option to fill $?1$ and $?2$ so that the program below prints an input string in reverse order. Assume that the input string is terminated by a new lin...

Kathleen

8.2k views

Kathleen asked Sep 12, 2014

40 votes

5 answers

51

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

11.0k views

gatecse asked Aug 5, 2014

13 votes

4 answers

52

GATE CSE 2019 | Question: 18
Consider the following C program : #include<stdio.h> int jumble(int x, int y){ x = 2*x+y; return x; } int main(){ int x=2, y=5; y=jumble(y,x); x=jumble(y,x); printf("%d \n",x); return 0; } The value printed by the program is ______________.

Consider the following C program :#include<stdio.h int jumble(int x, int y){ x = 2*x+y; return x; } int main(){ int x=2, y=5; y=jumble(y,x); x=jumble(y,x); printf("%d \n"...

Arjun

9.8k views

Arjun asked Feb 7, 2019

2 votes

4 answers

53

C programming - Output ?
#include <stdio.h> int main() { unsigned char a = 5; a |= (1<<((sizeof(char)<<3)-1)); char b = a; printf("%d %d\n",b,a); printf("%u %u\n",b,a); } If the size of a char datatype is 1 Byte, then what will be the output? [Edited]

#include <stdio.h int main() { unsigned char a = 5; a |= (1<<((sizeof(char)<<3)-1)); char b = a; printf("%d %d\n",b,a); printf("%u %u\n",b,a); }If the size of a char data...

dd

2.1k views

dd asked Apr 10, 2017

3 votes

4 answers

54

C PROGRAMMING

kamboj

3.2k views

kamboj asked Mar 20, 2017

2 votes

4 answers

55

recursion in c
output of program: void function(int); void main() { function(3); } void function(int num){ if(num>0) { function(--num); printf("%d",num); function(--num); } } will the argument num value be retained at all recursion levels?

output of program:void function(int); void main() { function(3); } void function(int num){ if(num>0) { function( num); printf("%d",num); function( num); } }will the argum...

gate_forum

1.5k views

gate_forum asked Mar 16, 2017

0 votes

4 answers

56

merge sort

harshit agarwal

1.2k views

harshit agarwal asked Jan 15, 2017

1 votes

4 answers

57

Virtual Gate Test Series: Programming & DS - Output Of The Program
What will be the output$?$ int main() { int varl = 35,*var2,*var3; var2 = &var1; //suppose the address of var1 is 1006 var3 = var2; *var2++ = *var3++; var1++; printf("var1 = %d var2 = %d var3 = %d ",var1,var2,var3); return 0; } 36 1010 1010 38 1006 1006 37 1006 1010 38 1010 1006

What will be the output$?$int main() { int varl = 35,*var2,*var3; var2 = &var1; //suppose the address of var1 is 1006 var3 = var2; *var2++ = *var3++; var1++; ...

Purple

906 views

Purple asked Jan 10, 2017

1 votes

4 answers

58

postfix to infix
The infix form of the following postfix form ‘P’ will be P: 3 , 5 , 7 , – , 10 , + , 4 , / , / (a) 3 / 5 – 7 + 10 / 4 (b) (((3 + 5) – (7 / 10 ))/ 4) (c) (3 / (((5 – 7) + 10) / 4)) (d) 3 + 5 – 7 / 10 / 4

The infix form of the following postfix form ‘P’will beP: 3 , 5 , 7 , – , 10 , + , 4 , / , /(a) 3 / 5 – 7 + 10 / 4 (b) (((3 + 5) – (7 / 10 ))/ 4)(c) (3 / (((5 �...

Sanjay Sharma

1.1k views

Sanjay Sharma asked Dec 31, 2016

5 votes

4 answers

59

Time complexity and output
#include <stdio.h> #define N 3 int main() { int array[N] = {1,2,3}; int i,j; for ( i=1; i<(1<<N); i++) { for( j=0; j<N; j++) { if((1<<j)&i) { printf("%d", array[j]); } } printf("\n"); } return 0 ... $N = n \;\; , n \; \text{ is a positive integer }$ ? B. What is the output? C. What will be the complexity when $N$ is large.

#include <stdio.h #define N 3 int main() { int array[N] = {1,2,3}; int i,j; for ( i=1; i<(1<<N); i++) { for( j=0; j<N; j++) { if((1<<j)&i) { printf("%d", array[j]); } } p...

dd

1.9k views

dd asked Dec 17, 2016

3 votes

4 answers

60

Pointers

Samujjal Das

2.5k views

Samujjal Das asked Nov 30, 2016

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