Recent questions in Programming

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1

UGCNET-June-2019-II-21
Consider the following pseudo-code fragment in which an invariant for the loop is $m ^*x^k=p^n$ and $k \geq 0$ (here, $p$ and $n$ are integer variable that have been initialized): /* Pre-conditions : $p \geq 1 \wedge n \geq 0$ */ /* Assume that overflow never occurs ... */ } Which of the following must be true ar the end of the while loop? $x=p^n$ $m=p^n$ $p=x^n$ $p=m^n$

asked Jul 2 in Programming by Arjun Veteran (418k points) | 133 views

+2 votes

1 answer

2

UGCNET-June-2019-II-22
Consider the following C-code fragment running on a $32$-bit $X86$ machine: typedef struct { union { unsigned char a; unsigned short b; } U; unsigned char c; }S; S B[10]; S*p=&B[4]; S*q=&B[5]; p → U.b=0x1234; /* structure S takes 32-bits */ If M is the value of $q-p$ ... $(M,N)$ is $(1,1)$ $(3,2)$ $(1,2)$ $(4,4)$

asked Jul 2 in Programming by Arjun Veteran (418k points) | 172 views

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2 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 (537 points) | 143 views

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0 answers

4

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 Junior (597 points) | 66 views

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1 answer

5

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 ?

asked Jun 2 in Programming by hitendra singh Active (1.7k points) | 110 views

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1 answer

6

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 (3.4k points) | 102 views

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1 answer

7

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?

asked Jun 1 in Programming by Satbir Boss (18k points) | 137 views

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0 answers

8

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) | 43 views

+1 vote

2 answers

9

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; }

asked May 30 in Programming by manisha11 Active (2.2k points) | 166 views

+2 votes

2 answers

10

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 $25$ ?

asked May 22 in Programming by Manoj Kumar Pandey (157 points) | 105 views

0 votes

3 answers

11

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 ___________

asked May 20 in Programming by srestha Veteran (114k points) | 136 views

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1 answer

12

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 $I) and IV)$

asked May 19 in Programming by srestha Veteran (114k points) | 137 views

0 votes

1 answer

13

Self doubt Data structures
Implement Linked list using stack.

asked May 19 in Programming by shraddha priya Active (3.9k points) | 132 views

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1 answer

14

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

asked May 19 in Programming by logan1x (399 points) | 26 views

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1 answer

15

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. $E) 0$

asked May 18 in Programming by Aishvarya Akshaya Vi (39 points) | 120 views

+1 vote

1 answer

16

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; }

asked May 13 in Programming by srestha Veteran (114k points) | 135 views

0 votes

1 answer

17

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 $2?$

asked May 12 in Programming by srestha Veteran (114k points) | 90 views

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0 answers

18

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 (41.4k points) | 16 views

0 votes

0 answers

19

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 (114k points) | 107 views

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0 answers

20

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 (114k points) | 114 views

0 votes

1 answer

21

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; }

asked May 7 in Programming by kaveeshnyk (37 points) | 112 views

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1 answer

22

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]

asked May 6 in Programming by srestha Veteran (114k points) | 82 views

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1 answer

23

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; }

asked May 5 in Programming by srestha Veteran (114k points) | 109 views

+1 vote

1 answer

24

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.

asked May 4 in Programming by srestha Veteran (114k points) | 96 views

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1 answer

25

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??

asked May 4 in Programming by srestha Veteran (114k points) | 54 views

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0 answers

26

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 (114k points) | 63 views

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0 answers

27

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 (114k points) | 70 views

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28

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?

asked May 3 in Programming by srestha Veteran (114k points) | 19 views

+1 vote

1 answer

29

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

asked May 2 in Programming by SPluto Junior (619 points) | 71 views

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0 answers

30

Argument passing in function by assigning value to a variable as argument.
Can we assign a value to a variable in calling a function as function argument? Ex- Int Func c( int); Int i =3; Void main(){ Fun c ( i=3)} Int Func c (int x) { Int x++; return x; } Please pardon me as the code above is not accurate but can give an idea of what i am trying to ask.

asked Apr 29 in Programming by ranarajesh495 (57 points) | 63 views

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force match	+apple
views	views:100
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