Recent questions and answers in Programming - GATE CSE Doubts

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Applied topic test
" if we assume uniform hashing, what is the probability that a collision will occur in a hash table with 100 buckets and 2 keys?" Doesn't this question means that we have a hash table in which there are already 2 keys, and we have ... probability of collision for the next insertion? Or it is asking the probability of collision in the table for these two keys insertion?

asked 2 days ago in Programming by Ankita87077 (9 points) | 11 views

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1 answer

TEST series :TESTBOOK

answered 3 days ago in Programming by zxy123 (2.9k points) | 24 views

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Book: Gate Overflow Question no. 4.7.20 in the Programming in C section

asked 5 days ago in Programming by hadarsh (5 points) | 13 views

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tifr previous year self doubt loop invariant
https://gateoverflow.in/19251/tifr2010-b-37 by counter example like for a= 2 and b =1 the loop does not terminate thus remaining options are A and D. But I'm having problem getting D as answer my answer is A as at any random example say a ... *b , so I go with Option A. considering this comment of the.brahmin.guy how it is not terminating using a=2 nd b

asked Jan 8 in Programming by eyeamgj (25 points) | 16 views

+1 vote

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Made easy Topicwise DS
"Consider the following array of elements <40, 35, 20, 10, 15, 16, 17, 8, 4, 30>. The minimum number of interchanges needed to convert it into a min-heap is _________ using built heap method." I am getting 7.

asked Jan 6 in Programming by anurags228 (23 points) | 23 views

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Made Easy Topic Wise DS
The number of min heap trees are possible with 15 distinct elements such that every leaf node must be greater than all non-leaf nodes of the tree are ________. According to me, the answer should be 80* 8! The given answer is different.

asked Jan 6 in Programming by anurags228 (23 points) | 38 views

+2 votes

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https://gateoverflow.in/204076 gate 2008 question on structure

asked Jan 4 in Programming by jainanmol123 (13 points) | 19 views

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TGA Material
Code: #include <stdio.h> #define TOTAL_ELEMENTS(sizeof(array))/sizeof(array[0]) int array[ ]={23,34,17,204,99,16}; int main() { int d; printf("%d",TOTAL_ELEMENTS); for (d=-1;d<=(TOTAL_ELEMENTS - 2);d++) printf ("%d",array[d+1]); return 0; } What is the output of the above code?

answered Dec 31, 2020 in Programming by wander (287 points) | 27 views

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The Gate Academy Material
Q. What does the following program do when the input is unsigned 16-bit integer? #include<stdio.h> main() { unsigned int num; int i; scanf("%u",&num); for(i=0;i<16;i++) { printf("%d.",(num << i&1 <<15 ... all even bits from num (B) it prints all odd bits from num (C) it prints binary equivalent of num (D) none of the above

answered Dec 31, 2020 in Programming by wander (287 points) | 15 views

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TGA material
Q. What does the following program do when the input is unsigned 16-bit integer? #include<stdio.h> main() { unsigned int num; int i; scanf("%u",&num); for(i=0;i<16;i++) { printf("%d.",(num << i&1 <<15)?1:0 ... it prints all even bits from num (B) it prints all odd bits from num (C) it prints binary equivalent of num (D) none of the above

asked Dec 30, 2020 in Programming by Enolx.21 (25 points) | 9 views

+1 vote

1 answer

TGA material
For the code: int z,x=5,y=-10,a=4,b=2; z=x++---y*b/a; The value of z will be_______

answered Dec 29, 2020 in Programming by zxy123 (2.9k points) | 25 views

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1 answer

What would be the output of following program and why?

answered Dec 29, 2020 in Programming by zxy123 (2.9k points) | 29 views

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data structures and algorithm analysis in java by mark allen weiss

asked Dec 27, 2020 in Programming by emankamal (5 points) | 16 views

+1 vote

1 answer

GATE2005-1, ISRO2017-55 Video Solution
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

answered Dec 27, 2020 in Programming by amitkhurana512 (35 points) | 13 views

+1 vote

1 answer

GATE2016-1-15 Video Solution
Consider the following C program. # include <stdio.h> void mystery (int *ptra, int *ptrb) { int *temp; temp = ptrb; ptrb =ptra; ptra = temp; } int main () { int a = 2016, b=0, c= 4, d = 42; mystery (&a, &b); if (a < c) mystery (&c, &a); mystery (&a, &d); print f("%d\n", a); } The output of the program is _________.

answered Dec 27, 2020 in Programming by amitkhurana512 (35 points) | 17 views

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GATE2017-2-14 Video Solution
Consider the following function implemented in C: void printxy(int x, int y) { int *ptr; x=0; ptr=&x; y=*ptr; *ptr=1; printf(“%d, %d”, x, y); } The output of invoking $printxy(1,1)$ is: $0, 0$ $0, 1$ $1, 0$ $1, 1$

answered Dec 27, 2020 in Programming by amitkhurana512 (35 points) | 12 views

+1 vote

1 answer

GATE2016-2-12 Video Solution
The value printed by the following program is _______. void f (int * p, int m) { m = m + 5; *p = *p + m; return; } void main () { int i=5, j=10; f (&i, j); print f ("%d", i+j); }

answered Dec 27, 2020 in Programming by amitkhurana512 (35 points) | 12 views

+1 vote

1 answer

GATE2010-11 Video Solution
What does the following program print? #include<stdio.h> void f(int *p, int *q) { p=q; *p=2; } int i=0, j=1; int main() { f(&i, &j); printf("%d %d\n", i,j); return 0; } $2 \ 2$ $2 \ 1$ $0 \ 1$ $0 \ 2$

answered Dec 27, 2020 in Programming by amitkhurana512 (35 points) | 13 views

+1 vote

1 answer

GATE2019-53 Video Solution
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 Dec 27, 2020 in Programming by amitkhurana512 (35 points) | 14 views

+1 vote

1 answer

GATE2015-3-26 Video Solution
Consider the following C program #include<stdio.h> int main() { static int a[] = {10, 20, 30, 40, 50}; static int *p[] = {a, a+3, a+4, a+1, a+2}; int **ptr = p; ptr++; printf("%d%d", ptr-p, **ptr); } The output of the program is _______.

answered Dec 27, 2020 in Programming by amitkhurana512 (35 points) | 10 views

+1 vote

1 answer

GATE2006-IT-51 Video Solution
Which one of the choices given below would be printed when the following program is executed? #include <stdio.h> int a1[] = {6, 7, 8, 18, 34, 67}; int a2[] = {23, 56, 28, 29}; int a3[] = {-12, 27, -31}; int *x[] = {a1, a2, a3}; void print(int *a[]) { printf("%d, ... (x); } $8, -12, 7, 23, 8$ $8, 8, 7, 23, 7$ $-12, -12, 27, -31, 23$ $-12, -12, 27, -31, 56$

answered Dec 27, 2020 in Programming by amitkhurana512 (35 points) | 15 views

+1 vote

1 answer

GATE2015-3-7 Video Solution
Consider the following C program segment. # include <stdio.h> int main() { char s1[7] = "1234", *p; p = s1 + 2; *p = '0'; printf("%s", s1); } What will be printed by the program? $12$ $120400$ $1204$ $1034$

answered Dec 26, 2020 in Programming by amitkhurana512 (35 points) | 18 views

+1 vote

1 answer

GATE2011-22 Video Solution
What does the following fragment of C program print? char c[] = "GATE2011"; char *p = c; printf("%s", p + p[3] - p[1]); $GATE2011$ $E2011$ $2011$ $011$

answered Dec 26, 2020 in Programming by amitkhurana512 (35 points) | 15 views

+1 vote

1 answer

GATE2006-IT-49 Video Solution
Which one of the choices given below would be printed when the following program is executed ? #include <stdio.h> struct test { int i; char *c; }st[] = {5, "become", 4, "better", 6, "jungle", 8, "ancestor", 7, " ... $\text{etter, u, 6, ungle}$ $\text{cetter, k, 6, jungle}$ $\text{etter, u, 8, ncestor}$

answered Dec 26, 2020 in Programming by amitkhurana512 (35 points) | 15 views

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Pre increment and post increment
int main() { int x=8,y=1; while(x>=y) { x=--x-x--; y=--y-y++; } printf("%d %d",y,x); what is the output?? please give detail solution.

asked Dec 26, 2020 in Programming by Manasi_123 (5 points) | 10 views

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PREVIOUS YEAR STATIC and GLOBAL SCOPE
https://gateoverflow.in/89082/gate1989-8b WHAT IS CORRECT ANSWER PLEASE SEE…. I M GETTING 0

asked Dec 25, 2020 in Programming by eyeamgj (25 points) | 13 views

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#self doubt on c programming
c+ = p&1; //c and p are integers How the above statement is executed..either c= (c+p)&1 or c= c+(p&1).

asked Dec 18, 2020 in Programming by BHOJARAM (13 points) | 6 views

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introduction to Arrays section from geeksforgeeks
Is it possible to declare any array of below type? // declare an array of user specified size int n = 10; int arr2[n];

asked Dec 16, 2020 in Programming by suryavasu1012 (9 points) | 11 views

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TESTSERIES-ME
I am getting 48 as a answer! please clear whether the given answer is correct or there is any mistake?

asked Dec 6, 2020 in Programming by Sinchit (17 points) | 48 views

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1 answer

C- Programming Question on Pointers
What will be the output of the following program? #include "stdio.h" int main() { char a[] = { 'P', 'Q', 'R', 'S' }; char* p = &a[0]; *p++; printf("%c ", *++p); } According to my solution As we know that ... answer comes out to be Q , but when I ran the program, then it showed my R as the output. Can someone please help me with this?

answered Dec 2, 2020 in Programming by zxy123 (2.9k points) | 38 views

+1 vote

1 answer

Made Easy Test Series 2021
Which of the following conditions is/are not equivalent to the condition (!((x>=y)&&(y>=z)))? a)(!(x>=z)) b)(x<=z) c)((x<y)&&(y<z)) d)((x<y)||(y<z))

answered Nov 30, 2020 in Programming by kalin (153 points) | 30 views

+1 vote

1 answer

NIELIT NIC STA 2020 set-C ques 80
Given array is {1,2,4,3}. Bubble sort is used to sort it. How many passes will be done to sort the array? 4 2 1 3 Answer given is 3 but I am getting 2. Need to confirm before challenging the key :)

answered Nov 26, 2020 in Programming by zxy123 (2.9k points) | 34 views

+1 vote

1 answer

NIELIT NIC STA 2020 set-C ques63
A recursive problem like tower of hanoi can be rewritten without recursion using: stack priority queue graph cycle They are saying without recursion. What this means? Recursion is done using stack, so shouldn’t we eliminate option A?

answered Nov 26, 2020 in Programming by zxy123 (2.9k points) | 26 views

0 votes

1 answer

Made Easy Test
Can someone explain how to find the complexity of this code( in a detailed way)

answered Nov 22, 2020 in Programming by kalin (153 points) | 23 views

+1 vote

2 answers

#made-easy-test-series
consider the below function mystery(a,b) { if(a<0 or b<0) return 0; else if (a==0) return b+1; else if(b==0) return mystery(a-1,1); else return mystery(a-1,mystery(a,b-1)); } what would be the value of mystery(3,3)? ans is 61.I am not able to solve it in less time.can someone explain how to solve such type of questions?

answered Nov 17, 2020 in Programming by kalin (153 points) | 60 views

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1 answer

#made-easy-test-series
which of the following relationship holds in general between the scope of a variable and the lifetime of a variable(in a language like c)? a)the scope of a variable is contained in the lifetime of the variable b)the scope of a variable is same as the ... c)the scope of a variable is disjoint from the scope of the variable d)none of the above ans is a.can someone explain?

answered Nov 17, 2020 in Programming by zxy123 (2.9k points) | 29 views

+1 vote

1 answer

Gate 2007 IT
Consider the standard implementation of a queue, all functions have their usual meanings. My doubt here is - we are deleting the front and then recursively calling the function again till the queue becomes. So we the last element will remain, we will delete it and ... empty queue, so in the next time the condition will become false, then how the insert(Q,i) statement will get executed?

answered Nov 17, 2020 in Programming by zxy123 (2.9k points) | 22 views

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Gate cs 2007
struct CellNode { struct CellNode *leftChild; int element; struct CellNode *rightChild; }; int Getvalue (struct CellNode *ptr) { int value = 0; if (ptr != NULL) { if ((ptr->leftChild == NULL) && (ptr->rightChild == NULL)) value = 1; else value ... will be the value of val 0 or 1(I think we still are taking 0 based on the answer) P.S. trying to getting better at recursion

asked Nov 17, 2020 in Programming by Abhineet Singh (23 points) | 15 views

+1 vote

2 answers

Self doubt:Programming
#include <stdio.h> int main(void) { int b=-1,a=-2; while(+(+b--)!=1){ b-=a++; } printf("%d",b); return 0; } What will be output of this code? I thought output should be 1, but getting no output. Plz tell me why no output here?

answered Nov 15, 2020 in Programming by _sajalrai_ (563 points) | 48 views

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#made-easy #binary-search-tree
select the correct statements .binary search trees(regardless of the order in which values are inserted into the tree). a)always have multiple links per node b)can be sorted efficiently c)always have the same shape for a particular set of data d)are non linear data structures ans is a,b,d can someone explain a,b part?

asked Nov 15, 2020 in Programming by 404 found (31 points) | 25 views

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