Recent questions and answers in Programming

+1 vote

1 answer

1

General Theory
Are Call by Value and Pass by Value synonyms? What are the differences between Pass by Value and Pass by Reference? Please explain with examples.

answered 1 day ago in Programming by teja1521 (139 points) | 47 views

+37 votes

6 answers

2

GATE2015-1-33
Consider the following pseudo code, where $x$ and $y$ are positive integers. begin q := 0 r := x while r ≥ y do begin r := r - y q := q + 1 end end The post condition that needs to be satisfied after the program terminates is $\{ r = qx + y \wedge r < y\}$ $\{ x = qy + r \wedge r < y\}$ $\{ y = qx + r \wedge 0 < r < y\}$ $\{ q + 1 < r - y \wedge y > 0\}$

answered 4 days ago in Programming by ShamikBanerjee (385 points) | 2.9k views

0 votes

0 answers

3

#programming
https://www.sanfoundry.com/c-program-checks-strings-anagrams/ what is the meaning of line number 32?

asked 4 days ago in Programming by himgta Active (3.6k points) | 46 views

+2 votes

3 answers

4

DS and programming
#include <stdio.h> int arr[] = { 10, 20, 30, 40, 50 }; static int count ; inc() { return ++count; } int main() { arr[count++]=inc(); printf("%d ", arr[count]); printf("%d ", arr[0]); } https://ideone.com/5LOuqj

answered 4 days ago in Programming by omprakash889 (23 points) | 222 views

+1 vote

2 answers

5

Programming and DS (C O/P)
For n=2 the P is coming as 3,but none of the option is satisfying?

answered 4 days ago in Programming by Priyadrasta Raut (345 points) | 115 views

0 votes

0 answers

6

how to generalize the number of trees intersection between preorder and postorder

asked 5 days ago in Programming by teja1521 (139 points) | 12 views

0 votes

0 answers

7

NPTEL CODING ASSIGNMENT
Consider a matrix M of integers. Divide M into 4 sub-matrices. These sub-matrices are called as Quadrants. Report the Quadrant number which has the smallest minimum-element. If two or more quadrants have same smallest minimum, report the smallest ... than 1 and less than 12 OUTPUT FORMAT: Print in a separate line, the quadrant number with the smallest minimum-element.

asked 5 days ago in Programming by himgta Active (3.6k points) | 27 views

+1 vote

1 answer

8

Array
Tell me the difference : &(arr+1) and &arr+1

answered 6 days ago in Programming by saif (427 points) | 96 views

0 votes

0 answers

9

Why do we typecast malloc()?

asked 6 days ago in Programming by teja1521 (139 points) | 32 views

0 votes

0 answers

10

#Nptel assignment
https://ide.geeksforgeeks.org/BX0OOC4rpt please explain what is wrong with the following code! The Collatz function is defined for a positive integer n as follows. f(n) = 3n+1 if n is odd n/2 if n is even We consider the repeated application of the Collatz ... positive number <= 32,000. You have to output how many times f has to be applied repeatedly in order to first reach 1.

asked Feb 16 in Programming by himgta Active (3.6k points) | 26 views

+1 vote

1 answer

11

sizeof
#include <stdio.h> int main() { int a = 1; char d[] = "ab"; printf("%d", sizeof(a+d)); return 0; } Explain the Output

answered Feb 16 in Programming by Shaik Masthan Veteran (55.9k points) | 95 views

0 votes

2 answers

12

Pointers in C programming.
For this statement->printf ("%s",*--*++cpp+3); What will be the order of precedence according to pointer arithmetic?

answered Feb 16 in Programming by subhrob (373 points) | 43 views

0 votes

1 answer

13

#define doubt
#include <stdio.h> #define foo(m,n) "m##n" int main() { char x='k',y='l'; printf("%s",foo(x,y)); return 0; } Output Please explain why the output is m##n instead of k##l

answered Feb 16 in Programming by Shaik Masthan Veteran (55.9k points) | 26 views

+1 vote

1 answer

14

Pointers
#include <stdio.h> char *c[] = {"GatsQuiz", "MCQ", "TEST", "QUIZ"}; char **cp[] = {c+3, c+2, c+1, c}; char ***cpp = cp; int main() { printf("%s ", **++cpp); printf("%s ", *--*++cpp+3); ... , *cpp[-2]+3); printf("%s ", cpp[-1][-1]+1); return 0; } what is the output of this program? Please explain with reasons.

answered Feb 16 in Programming by subhrob (373 points) | 37 views

0 votes

1 answer

15

JEST Sample Question-2
Consider the following function, defined by a recursive program: function AP(x,y: integer) returns integer; {if {x = 0 then return y+1} else if { y = 0 then return AP(x-1,1)} else return AP(x-1, AP(x,y-1)) } (a) Show that on all nonnegative arguments x and y, the function AP terminates. (b) Show that for any x, AP(x, y) > y.

answered Feb 15 in Programming by prashant jha 1 Active (4.1k points) | 45 views

0 votes

1 answer

16

Why heap memory slower than stack?

answered Feb 15 in Programming by Arko Jyoti Shith (37 points) | 37 views

0 votes

0 answers

17

JEST Sample Question-7
Consider the following program: function mu(a,b:integer) returns integer; var i,y: integer; begin ---------P---------- i = 0; y = 0; while (i < a) do begin --------Q------------ y := y + b ; i = i + 1 end return y end Write a condition P such that the program terminates, and a condition Q which is true whenever program execution reaches the place marked Q above.

asked Feb 15 in Programming by sripo Active (1.5k points) | 22 views

+1 vote

2 answers

18

GATE2019-18
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 ______________.

answered Feb 13 in Programming by sandeeps (77 points) | 1.8k views

0 votes

1 answer

19

Linked list
What are the time complexities of finding 8th element from beginning and 8th element from end in a singly linked list? Let n be the number of nodes in linked list, you may assume that n > 8.? Please mention the reason of the answer also.

answered Feb 13 in Programming by Satbir Active (5.1k points) | 52 views

0 votes

1 answer

20

Max heap
Conversion of binary search tree into a Max heap takes: O(n) time O(nlog n) time None

answered Feb 13 in Programming by prashant jha 1 Active (4.1k points) | 39 views

0 votes

5 answers

21

GATE2019-24
Consider the following C program: #include <stdio.h> int main() { int arr[]={1, 2, 3, 4, 5, 6, 7, 8, 0, 1, 2, 5}, *ip=arr+4; printf(“%d\n”, ip[1]); return 0; } The number that will be displayed on execution of the program is _______

answered Feb 12 in Programming by Satbir Active (5.1k points) | 1.8k views

+2 votes

4 answers

22

GATE2019-27
Consider the following C program: #include <stdio.h> int r() { static int 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? $41$ $52$ $63$ $630$

answered Feb 12 in Programming by Tuhin Dutta Loyal (9.1k points) | 2.2k views

0 votes

2 answers

23

C Programming: Output
what is the return value 8 or 6?

answered Feb 12 in Programming by Harshit_Tiwari_Pali (19 points) | 50 views

+1 vote

3 answers

24

GATEBOOK-2019-DS1-10
Consider following C program: #include <stdio.h> int main() { int a[3][4][2]={11,12,13,21,22,23,31,32,33,41,42,43,51,52,53,61,62,63}; printf("%d ",*((*(a+2)-3))[2]); return 0; } What is the output of this code? $41$ $42$ $53$ $62$

answered Feb 12 in Programming by Gawade Sahadev (243 points) | 170 views

0 votes

0 answers

25

Trees
StateTrue/False: Conversion of Max heap into a binary search tree takes O(n) time.

asked Feb 11 in Programming by gate_forum Active (1.3k points) | 48 views

0 votes

0 answers

26

c++,Exception,Base and derived class exception
#include<iostream> using namespace std; class Base {}; class Derived: public Base {}; int main() { Derived d; // some other stuff try { // Some monitored code throw d; } catch(Base b) { cout<<"Caught Base ... base class exception is caught can anyone explain how it is happened internally . and what is class Derived: public Base {};

asked Feb 9 in Programming by shiva0 (161 points) | 22 views

0 votes

1 answer

27

GATE 2019 - The number of times printf statement is executed is:
int main() { float sum, i = 1.0, j = 2.0; while (i/j > 0.0625) { j = j + j; printf("%f", i+j); } } The number of times printf statement is executed is:

answered Feb 7 in Programming by Kritika14 (41 points) | 203 views

0 votes

1 answer

28

GATE2019-52
Consider the following C program: #include <stdio.h> int main() { float sum = 0.0, j=1.0, i=2.0; while (i/j > 0.0625) { j=j+j; sum=sum+i/j; printf("%f\n", sum); } return 0; } The number of times the variable sum will be printed, when the above program is executed, is _________

answered Feb 7 in Programming by Digvijay Pandey Veteran (59.4k points) | 1.8k views

0 votes

1 answer

29

GATE2019-53
Consider the following C program: #include <stdio.h> int main() { int a[] = {2, 4, 6, 8, 10}; int i, sum=0, *b=a+4; for (i=0; i<5; i++) sum=sum+(*b-i)=*(b-i); printf("%d\n", sum); return 0; } The output of the above C program is _______

answered Feb 7 in Programming by Digvijay Pandey Veteran (59.4k points) | 1.7k views

+3 votes

2 answers

30

GATE2019-17
The following C program is executed on a Unix/Linux system : #include<unistd.h> int main() { int i; for(i=0; i<10; i++) if(i%2 == 0) fork(); return 0; } The total number of child processes created is ________________ .

answered Feb 7 in Programming by vin101 Active (1k points) | 2.2k views

0 votes

2 answers

31

Gate 19

answered Feb 7 in Programming by ashish96082 (11 points) | 215 views

0 votes

0 answers

32

Gate 2019 C Programming
What will be the final output : #include <stdio.h> int r(){ static int num=7; return num--; } int main(){ for(r();r();r()) { printf("%d ",r()); } return 0; } A)63 B)41 C)52 D)630 [closed]

asked Feb 7 in Programming by _shashi (255 points) | 415 views

0 votes

2 answers

33

Void pointer
Why we need to type cast void pointer for accessing the data of variable?

answered Feb 6 in Programming by saurav raghaw Active (1k points) | 79 views

+1 vote

1 answer

34

self doubt
int arr[]={1,2,3,4,5}; int *p2=(int*)(&arr+1); what is the meaning of p2 ????? please explain

answered Feb 5 in Programming by piyushwm (351 points) | 125 views

0 votes

1 answer

35

is it dangling pointer
is it dangling pointer ? int main(void) { int* p; printf("%d",*p); return 0; } https://ideone.com/IN77el

answered Feb 4 in Programming by saurav raghaw Active (1k points) | 97 views

0 votes

1 answer

36

GATE 2019

answered Feb 4 in Programming by rosshan77 (275 points) | 343 views

0 votes

2 answers

37

Gate 2019: Static C Programing
Consider the followinc C program #include<stdio.h> int r() { static int num = 7; return num--; } int main() { for ( r(); r(); r() ) printf("%d",r() ); return 0; } What is the output of the above C program? (a) 73 (b) 52 (c) 41 (d) 31

answered Feb 4 in Programming by Pyush (31 points) | 313 views

0 votes

2 answers

38

gate 2019
From a complete binary tree T of 8 leaf nodes, two leaf nodes a and b are selected randomly and uniformly. What is the expected distance between a and b in T?

answered Feb 3 in Programming by xariniov9 (365 points) | 1k views

0 votes

1 answer

39

#avl tree
maximum and minimum height of the avl tree with 42 node

answered Jan 31 in Programming by aakashmehta998 (99 points) | 19 views

0 votes

1 answer

40

ME MOCK 4
Consider the following function: void madeeasy (int n) { if (n < 0) return; else { printf(n); madeeasy (- -n); madeeasy (n - -); printf(n); } } The sum of all values printed by madeeasy (5)_______ (I am getting -12 but given answer is 52)

answered Jan 31 in Programming by balchandar reddy san Active (2.7k points) | 152 views

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content	content:apple
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force match	+apple
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