Recent questions and answers in Programming

+1 vote

2 answers

1

Data structure Set 2-30
Meena is working in an IT company as HR manager. She has a large list of potential candidates to be recruited which are all sorted by their names. But she found that due to a bug in software 'O' was treated as '0' by the input ... is not correct. What would be the appropriate algorithm to correct the list of candidate profiles? Quick Sort Heap Sort Insertion Sort Merge Sort

answered 4 days ago in Programming by Ayon Mitra (131 points) | 149 views

0 votes

1 answer

2

GATE1988-2xiii
What is referential transparency?

answered Jun 15 in Programming by Satbir Boss (13.2k points) | 127 views

+1 vote

0 answers

3

How Self-Referential Structure works?
I have learnt that self-referential structure is one which contains a structure of same type in it as an element. But I have a doubt regarding how that line is compiled successfully (i.e, how compiler knows how much space should be allocated and ... not yet finished? struct node { int data; struct node *next; }; correct me If I am wrong in understanding this.

asked Jun 12 in Programming by Sathuri Bharath Junior (511 points) | 41 views

0 votes

1 answer

4

c-programming self doubt
#include<stdio.h> #include<stdlib.h> int main(void) { int maxLineCount = 500, maxCharCount = 500, index, j, count; char *line = NULL; size_t size; char *a[maxLineCount]; for (index = 0; index < maxLineCount; index++) a[index] = ... code is doing. suppose we have 3 string given as input in 3 different lines then how can we access each character of the string?

answered Jun 11 in Programming by piyush7rajput (35 points) | 78 views

+1 vote

2 answers

5

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

answered Jun 9 in Programming by Rudr Pawan (11 points) | 188 views

0 votes

2 answers

6

Pointers address
https://gateoverflow.in/?qa=blob&qa_blobid=14433986388826671915 int main() { int a = 10; int *b = &a; scanf("%d",b); printf("%d",a+50); } What will be the Output of the following code if input given is $25$ ?

answered Jun 8 in Programming by Akanksha Agrawal (33 points) | 58 views

0 votes

2 answers

7

#userdefined Data type union in C
What is the output of the program? int main() { union a { int i; char ch[2]; }; union a u; u.ch[0] = 3; u.ch[1] = 2; printf("%d, %d, %d", u.ch[0], u.ch[1], u.i); return 0; }

answered Jun 8 in Programming by Akanksha Agrawal (33 points) | 59 views

0 votes

0 answers

8

Precision Field in printf with %s specifier
We know that UNIX support a feature that allows for variable field with precision. please help me out in this statement -> printf(“% * .* s \n”,w,d,string); ? i know using of precision with string such as %10.4s <width>.<precision> indicating that first four character to be printed in a field with 10 columns.

asked Jun 6 in Programming by Aks9639 (435 points) | 38 views

0 votes

4 answers

9

array pointers
What will the following code fragment output: void fun(int *a, int b) { b++; a[2] = a[1] + 3; } void main() { int A[5] = {0,1,2,3,4}; fun(A, A[2]); printf(%d, A[2]); }

answered Jun 6 in Programming by Sachin Yadav 4 (57 points) | 180 views

0 votes

1 answer

10

array of strings
#include <stdio.h> int main(void) { char* ar[4]; scanf("%s",ar[3]); printf("%s",ar[3]); return 0; } char *test1[3]= {"arrtest","ao", "123"}; if one can initialize array like this ,how can input be taken by using scanf ?

answered Jun 3 in Programming by Satbir Boss (13.2k points) | 52 views

0 votes

0 answers

11

Self Doubt:Infinite loop
#include<iostream> using namespace std; int i=0; void a() { i+=1; cout<<i<< ".hello"<<endl; a(); } int main() { a(); } For this above code the output is only upto → 64891.Hello Does this mean that that the stack can hold only 64891 recursive calls? (I am using dev c++)

asked Jun 2 in Programming by Hirak Active (3k points) | 47 views

0 votes

0 answers

12

Post Increment and pre incement
output is a=34 and x=13 can anyone plzz explain #include <iostream> using namespace std; int main() { int x = 10, a; a = x++ + ++x + x++; cout << "Post Increment Operation"; cout << "\na = " << a; cout << "\nx = " << x; return 0; } [closed]

asked May 30 in Programming by Arun Rout (109 points) | 24 views

0 votes

2 answers

13

C Program Output and Explaination
void fun(int *p) { int q = 10; p = &q; z } int main() { int r = 20; int *p = &r; fun(p); printf("%d", *p); return 0; }

answered May 30 in Programming by shaktisingh (91 points) | 91 views

0 votes

2 answers

14

Made Easy Test Series:Programming(FLT4)
#include<stdio.h> #include<iostream> int bar(int m, int n){ if(m==0)return n; if(n==0)return m; return bar(n%m,m); } int foo(int m,int n){ return(m*n/bar(m,n)); } int main(){ int x=foo(1000,1500); printf("%d",x); return 0; } Output of the program is ___________

answered May 27 in Programming by vikash_thakur (83 points) | 69 views

+1 vote

1 answer

15

TIFR2019-B-8
Consider the following program fragment: var a,b : integer; procedure G(c,d: integer); begin c:=c-d; d:=c+d; c:=d-c end; a:=2; b:=3; G(a,b); If both parameters to $G$ are passed by reference, what are the values of $a$ and $b$ at the end of the above program fragment ? $a=0$ and $b=2$ $a=3$ and $b=2$ $a=2$ and $b=3$ $a=1$ and $b=5$ None of the above

answered May 24 in Programming by abhishekmehta4u Boss (33.9k points) | 155 views

0 votes

1 answer

16

Made Easy Test Series:Programming
Consider the following C program #include<stdio.h> int main(){ char *arr={"GATE","CAT","IES","IAS","PSU","IFS"}; call(arr); return 0; } void call(char **ptr){ char **ptr1; ptr1=(ptr+=(sizeof(int)))-2; printf("%s",*ptr1); } Assume size of int pointer 4B.What will be output?

answered May 24 in Programming by Satbir Boss (13.2k points) | 89 views

0 votes

1 answer

17

Made Easy Test Series: Programming-Recursive and Iterative Program
$I=$Iterative Program $R=$ Recursive Program $(A)$ For every program belonging to class $I$, there is an equivalent program to class $R.$ $(B)$ Every program in $R$ uses strictly more stack space compared to equivalent program in $I.$ Among $(A)$ and $(B)$ which one is correct?

answered May 22 in Programming by Kaluti Loyal (5.4k points) | 15 views

0 votes

1 answer

18

oops doubt
A default catch block catches, [A]. all thrown objects [B]. no thrown objects [C]. any thrown object that has not been caught by an earlier catch block [D]. all thrown objects that have been caught by an earlier catch block

answered May 21 in Programming by Kaluti Loyal (5.4k points) | 17 views

0 votes

1 answer

19

Made Easy Test Series:Programming in C
Consider the following $C$ implementation which when given $3$ numbers a,b,c as input, find the maximum of $3$ numbers $a,b,c.$ int kickstart(int a,int b,int c) { if(B1) return a; if(a>=b) return B2; return kickstart(c,a,b); } How the boxes filled up ... $a\geq c, B2:kickstart\left ( b,c,a \right );$ Is it $I) and II)$ or $I) and IV)$

answered May 21 in Programming by Satbir Boss (13.2k points) | 92 views

0 votes

0 answers

20

Self doubt Data structures
Implement Linked list using stack.

asked May 19 in Programming by shraddha priya Active (3.6k points) | 110 views

0 votes

1 answer

21

Gradeup - Programming in C
What will be the output of the below code? the answer given is E)0 but I am not getting it. #include <stdio.h> void fun(short int *a,char *b) { b += 2; short int *p = (short int*)b; *p = *a; } int main() { void (*fptr)(short int *,char ... printf("%d", arr[3]); return 0; } $A)$ Compilation error. $B) 100$ $C)$ Garbage Value $D)$ Segmentation Fault. $E) 0$

answered May 18 in Programming by Anuj Mishra Active (2k points) | 64 views

+1 vote

1 answer

22

Self Doubt-Programming
Can someone explain the output of this code? and what (char*) is doing actually? #include<stdio.h> struct Ournode{ char x, y, z; }; int main() { struct Ournode p={'1', '0', 'a'+2}; struct Ournode *q=&p; printf("%c, %c", '*((char*)q+1)', '*((char*)q+2)'); return 0; }

answered May 14 in Programming by Satbir Boss (13.2k points) | 118 views

0 votes

1 answer

23

Made Easy Test Series:Programming Test
Consider the following function $foo()$ void foo(int n){ if(n<=0) printf("Bye"); else{ printf("Hi"); foo(n-3); printf("Hi"); foo(n-1); } } Let $P(n)$ represent recurrence relation, indicating number of ... $1$ or $2?$

answered May 12 in Programming by Satbir Boss (13.2k points) | 56 views

0 votes

0 answers

24

ISI2018-PCB-B6
The following function computes an array $SPF$, where, for any integer $1 < i < 1000$, $SPF[i]$ is the smallest prime factor of $i$. For example, $SPF[6]$ is $2$, and $SPF[11]$ is $11$. There are five missing parts in the following code, commented as $/* Blank */$. For each of them ... < 1000; j+= i) { /* Blank 4 */ if (SPF[j] == j) { SPF[j] = _____; /* Blank 5 */ } } } } }

asked May 12 in Programming by akash.dinkar12 Boss (40.5k points) | 9 views

0 votes

0 answers

25

Made Easy Test Series : Programming Test4
Consider the following C code: int getNextGap(int gap){ gap=(gap*10)/13; if(gap<1)return 1; return gap; } void mystery(int a[ ],int n){ int gap=n; bool red=true; while(gap!=1||red==true){ gap=getNextGap(gap); red ... elements, then what output will print at last? I mostly stuck how bool function working here. Plz help me out, how program executing:(

asked May 10 in Programming by srestha Veteran (111k points) | 82 views

0 votes

0 answers

26

Made Easy Test Series:Programming Test4-Function Call
Consider the following function int fun(int a[ ],int l, int target){ int i=0,j=0,sum=0,count=0; while(j<l){ if(sum<target){ sum=sum+a[j]; j++; } else if(sum>target){ sum=sum-a[i]; i++; } else{ count++; sum= ... call $fun\left ( a,16,8 \right )=$_______________ Given ans $6,$ but I got $4.$ Which one correct?? Any shortcut to evaluate??

asked May 8 in Programming by srestha Veteran (111k points) | 88 views

0 votes

1 answer

27

Self-Doubt:Program
Can someone tell me, why these two same program giving different output?Is there any problem in code or compiler not producing right? Program1 Program2 [closed]

answered May 7 in Programming by Aditya Patel Junior (549 points) | 77 views

0 votes

1 answer

28

Can anyone please explain this question step by step
#include<stdio.h> int main(){ int (*a)[5]; int arr[5][5]={ {10,65,300,400,500}, {100,20,3000,40,5000} }; a = arr; ++a ; char *ptr = (char*)*a; ++a ; printf("%d %d %d",**a,*arr[1],*ptr); return 0; }

answered May 7 in Programming by Aditya Patel Junior (549 points) | 86 views

+15 votes

2 answers

29

GATE2008-18
Which combination of the integer variables $x, y$ and $z$ makes the variable $a$ get the value $4$ in the following expression? $a=(x > y)?((x > z) ?x:z): ((y > z) ?y:z)$ $x=3, y=4, z=2$ $x=6, y=5, z=3$ $x=6, y=3, z=5$ $x=5, y=4, z=5$

answered May 7 in Programming by Debargha Bhattacharj (395 points) | 1.6k views

0 votes

1 answer

30

Self Doubt
if array declared size is larger than values initialised. Then what value rest memory elements have , 0 or garbage?

answered May 7 in Programming by Kashyap Avinash Active (1k points) | 39 views

0 votes

1 answer

31

Array of Pointers-Self Doubt
$1)$ How to access array element with array of pointers? By pointer to an array we can access like this $(*a)[0]$,$(*a)[22]$, .. like this right? but how with array of pointer? $2)$Check these three codes , one of them use array and one of them use ... main(void) { if(*(ptr+5)==*(ptr+3)){ printf("Equal"); } else{ printf("Not Equal"); } return 0; }

answered May 5 in Programming by Satbir Boss (13.2k points) | 91 views

0 votes

1 answer

32

Doubt on Program:Self Doubt
#include <stdio.h> int main(void) { int s[6]={128,256,512,1024,2048,4096}; int *x=(int*)(&s+1); printf("%d",x); return 0; } #include <stdio.h> int main(void) { int s[6]={128,256,512,1024,2048,4096}; int *x=(int*)(&s+1); printf("%u",x); return 0; } Why both are printing different address? Is it not a fixed address of memory??

answered May 5 in Programming by Sathuri Bharath Junior (511 points) | 42 views

+1 vote

1 answer

33

Made Easy Test Series:Programming-String
#include<stdio.h> #include<string.h> int main(void) { char *a="MADEEASY"; char *b="GATECSIT2019"; char *r=a; char *s=b; printf("%d",(int)strlen(b+3[r]-1[s])); return 0; } Ans is given $8.$ I know basic thing, but couldnot getting what strlen(b+3[r]-1[s]) returning?? Plz explain.

answered May 5 in Programming by Sathuri Bharath Junior (511 points) | 71 views

0 votes

0 answers

34

Made Easy Test Series:Programming-Function Call
Consider the following program: void A(int n){ printf("*"); if(n>1){ A(n/4); A(n/4); A(n/4); A(n/4); } } Let $X$ be number of asterisks printed by above function when $n=1024.$ Then the value of $X$ will be ____________ How ans will be $\frac{4^{k+1}-1}{3}$ , where $k=5?$ .

asked May 4 in Programming by srestha Veteran (111k points) | 39 views

0 votes

0 answers

35

Made Easy Test Series:DS-Array
Consider the integer array $A\left [ 1.........100,1.......100 \right ]$ in which the elements are stored in $Z$ representation. An example of a $5\times 5$ array in $Z$ representation is shown below: If the base address of $A$ is ... $A$ is stored in Row Major Order, then the address corresponding to $A\left [ 100 \right ]\left [ 55 \right ]$ is ________________

asked May 4 in Programming by srestha Veteran (111k points) | 60 views

+4 votes

1 answer

36

IIT Kanpur Programming Test 2017
C Program to find addition factors of a number in lexicographic order for n < 15. For example if n = 4 then output will be : 1 1 1 1 1 1 2 2 2 1 3

answered May 4 in Programming by Akash Mishra Active (1.3k points) | 1.3k views

0 votes

1 answer

37

UPPCL AE 2018:1

answered May 3 in Programming by Abhisek Tiwari 4 Active (4.5k points) | 38 views

+1 vote

1 answer

38

IIT Madras MS written test 2019 - C prog.
for(; i != 0; --i) { printf("\nIITM"); --i; } If i is initialized to 100, then IITM will be printed 50 times If i is initialized to 101, then IITM will be printed 51 times Both I and II are true I is true, II is false I is false, II is true Both I and II are false

answered May 2 in Programming by SPluto Junior (611 points) | 62 views

+4 votes

1 answer

39

C Programme
CODE 1 #include <stdio.h> int i; int i=10; int main(void) { return 0; } CODE 2 #include <stdio.h> int i=0; int i=10; int main(void) { return 0; } Why Code 1 is not giving any compilation error but code 2 does ? I think in code 1 ... zero(implicitly) and in code 2 i just explicitly declare and define int i to be zero. but i don't know how code 2 give error of redefinition.

answered May 1 in Programming by gaurav1.yuva (427 points) | 55 views

0 votes

3 answers

40

Yashavant Kanetkar Understanding Pointers in C, chapter 1, question number 1
Can you write another expression which does the same job as ++*ptr ?

answered Apr 30 in Programming by karri parasuramu (11 points) | 273 views

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