Recent questions in Programming

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1

Allen Career Institute:Programming
Do something (x, n) { m = n, temp = 1, z = x ; while (m > 0) do { while ((m mod z) == 0) do { m = |m/2|; z = z^{2} ; } m = m – 1; } return temp ; } Complexity of the above problem $1)\Theta \left ( log n \right )$ $2)\Theta \left ( nlog n \right )$ $3)\Theta \left (n^{2} \right )$ $4)\Theta \left (n\right )$

asked Mar 28 in Programming by srestha Veteran (117k points) | 98 views

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2

Pointer question-C
Anyone kindly tell the reason why the outputs are differ ? #include<stdio.h> int main() { char *ptr = "geeksforgeeks"; printf("%c\n", *&*&*ptr); getchar(); return 0; } Output-g #include<stdio.h> int main() { char *ptr = "geeksforgeeks"; printf("%s\n", *&*&ptr); getchar(); return 0; } Output-geeksforgeeks

asked Mar 24 in Programming by val_pro20 Active (1.2k points) | 111 views

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3

Self Doubt on scoping
int x = 5, y = 10 ; void main ( ) { int i = 2, j = 3 A (i, j); } void A (int i, int j) { int x = 10, y = 5 ; i = i + x : j = i + y : printf ("%d %d", i, j); B (i, j); } void B (int i, int j) { i ... by-name 3. call-by-need 4. call-by-value 5.Static scoping 6.Dynamic scoping Any reference for call by name and call by need Is for static coping $12,17,54$ or $12,17,59$?

asked Mar 23 in Programming by srestha Veteran (117k points) | 60 views

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4

about array size
#include <stdio.h> // Note that arr[] for fun is just a pointer even if square // brackets are used void fun(char arr[]) // SAME AS void fun(int *arr) { unsigned int n = sizeof(arr)/sizeof(arr[0]); printf("\nArray size inside fun() is ... ********** output is confusing : need explaination how is it happening Array size inside main() is 6 Array size inside fun() is 8

asked Mar 23 in Programming by hitendra singh Active (1.7k points) | 71 views

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5

self doubt variable scope
#include <stdio.h> /* global variable declaration */ int g = 20; int main () { /* local variable declaration */ int g ; printf ("value of g = %d\n", g); return 0; } why this printing value of g is 0 instead of garbage because g is declared which is local variable in main function. are variables inside main function by default global?

asked Mar 17 in Programming by Ram Swaroop Active (4.6k points) | 90 views

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6

Geeks for Geeks : C Program
In the above 4 Statements which would print 123 as output ? Explain also.

asked Mar 16 in Programming by Ashish Roy 1 (167 points) | 140 views

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7

Self Doubt
For creating a N integer array is there any mistake in this line? int numArray[N]=(int *) malloc(N);

asked Mar 12 in Programming by srestha Veteran (117k points) | 87 views

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8

Programming in C: Find the Output of function call A(6). Please explain the approach for such questions [closed]

asked Mar 10 in Programming by Nishi Agarwal (107 points) | 113 views

+1 vote

1 answer

9

#operator precedence and associativity
#include<stdio.h> int x = 0; int f1() { x = 5; return x; } int f2() { x = 10; return x; } int main() { printf("%d \n", f1()); printf("%d \n", f2()); int p = f1() + f2(); printf("%d ", x); return 0; } what is the output when int p= f1()+f2(); is called and how this is came?????? thank you…!

asked Mar 10 in Programming by shiva0 (171 points) | 120 views

+2 votes

1 answer

10

Programming in C: What is the output of program? Explain for all the statements
int main() { int m=44; int*p=&m; int &r=m; int n=(*p)++; int *q=p-1; r=--*(p)+1; ++*q; printf("m=%d n=%d r=%d",m,n,r); return 0; } Options: m=44,n=46,r=45 m=45,n=44,r=45 m=46,n=44,r=46 m=46,n=43,r=46

asked Mar 10 in Programming by Nishi Agarwal (107 points) | 176 views

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11

What is the output of program?
void f(int x,int &y,const int &z) {x+=z; y+=z; } int main() { int a=22,b=33,c=44; f(a,b,c); f(2*a-3,b,c); printf("a=%d b=%d c=%d",a,b,c); return 0; }

asked Mar 10 in Programming by Nishi Agarwal (107 points) | 87 views

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2 answers

12

Programming in C : what is the value of x?
int x=0,i; for(i=0;i<10;i++) if(i%2 && x++) x+=2; Options: a: 11 b:13 c:15 d:17 [closed]

asked Mar 9 in Programming by Nishi Agarwal (107 points) | 97 views

+1 vote

0 answers

13

ACE test Series: Programming and DS-Programming
void find(int x){ static int i=10,y=0; y=y+i; for(i;i>0;i=i-10){ if(x!=0) find(x-1); else{ printf("%d",y); } } } What will be output printed for find(4)?

asked Mar 6 in Programming by srestha Veteran (117k points) | 136 views

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14

ACE Test Series:Programming in C
#include <stdio.h> int main(void) { char s1[15]="SREE"; char s2[10]="ALL THE BEST"; strcpy(s2,s1); printf("\n%s",s2); return 0; } 1)How s2 will contain a string of size 12, while it only contain ... copying , I mean SREETHE BEST Will it work like pointer that s2 pointing to same as s1? Anything link good to read about strcpy

asked Mar 5 in Programming by srestha Veteran (117k points) | 89 views

+2 votes

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15

ACE Test Series: Programming in C
What will be output of the program? int d=0; int f(int a,int b){ int c; d++; if(b==3) return a*a*a; else{ c=f(a,b/3); return(c*c*c); } } int main(){ printf("%d",f(4,81)); return 0; }

asked Mar 5 in Programming by srestha Veteran (117k points) | 166 views

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16

Locality of Rference(OS+DS) (ACE)
An OS uses virtual memory with paging technique for memory allocation. Which of the following searching technique on given data structure use locality of reference? Linear search on linked list Binary search on array Linear search on array Binary search on linked list

asked Mar 2 in Programming by srestha Veteran (117k points) | 92 views

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2 answers

17

Programming Stack (ACE)
Runtime stack doesnot contain (A) Local variables (B) Static Variables (C) Parameter Passed (D) Return Address

asked Mar 1 in Programming by srestha Veteran (117k points) | 142 views

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1 answer

18

Programming doubt(ACE)
void print(int i){ static int x=4; if(i!=0){ print(--x); } printf("%d",x); } What will be output printed for print(10)? Will it print value as call by value or call by reference?

asked Mar 1 in Programming by srestha Veteran (117k points) | 100 views

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1 answer

19

assignment
Following C program is written to find the pairs of elements in an array whose sum is 9. The for loop will iterate over the array of size 7. The program will print the correct pairs (whose sum is 9) on iteration number a' and b'. What are the values of a' and b'? Note: for 1st iteration, i=0. For 2nd ... sum = 9; int A[7]={1,4,3,3,5,2,6}; pair(A,7,sum); } 1. 5,7 2. 2,5 3. 4,6 4. 2,3

asked Feb 28 in Programming by Arun Rout (115 points) | 83 views

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20

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

asked Feb 19 in Programming by himgta Active (3.7k points) | 60 views

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0 answers

21

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

asked Feb 18 in Programming by teja1521 (179 points) | 19 views

+1 vote

1 answer

22

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 Feb 18 in Programming by himgta Active (3.7k points) | 124 views

+1 vote

2 answers

23

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

asked Feb 17 in Programming by Ahsanul Hoque (195 points) | 255 views

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24

Why do we typecast malloc()?

asked Feb 17 in Programming by teja1521 (179 points) | 58 views

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25

#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 (3.7k points) | 274 views

+1 vote

1 answer

26

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

asked Feb 16 in Programming by Shiva Sagar Rao Junior (729 points) | 181 views

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1 answer

27

#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

asked Feb 16 in Programming by Shiva Sagar Rao Junior (729 points) | 64 views

+2 votes

1 answer

28

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.

asked Feb 15 in Programming by Somdatta Sen (59 points) | 62 views

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1 answer

29

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.

asked Feb 15 in Programming by sripo Active (2.4k points) | 68 views

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30

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 (2.4k points) | 38 views

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