Recent questions and answers in Programming - GATE CSE Doubts

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2D Arrays from made easy test series topic test 1
The 2d array is given as A[0...39,0...39].What is the location of A[15][25] if row major order is followed along with lower triangular matrix?base address is 500 and char takes 1byte of memory.

answered 6 days ago in Programming by Anirban Chand (41 points) | 40 views

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Data Structures
Consider an int array a[5][3][2], and size of int is 4bytes in a machine. If a[2][2][0] and a[4][0][1] has array address as 128 and 208, the array is stored in which major order?

answered Jun 24 in Programming by varunrajarathnam (9 points) | 16 views

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Time complexity
#include <stdio.h> int main(void){ // Your code here! for(int i=1;i<=4;i++) { // printf("%d\n",i); for(int j=1; j<=i;j++) { printf("%s\n", "pankaj"); } printf("\n"); } } i think time complexity is n^2 ...is it right?

answered Jun 19 in Programming by BHASHKAR (44 points) | 24 views

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self doubts pointers
#include<stdio.h> int main() { int x=480; char *y; y=&x; *++y=4; printf("%d,%d",*y,x); return 0; } op?

answered Jun 14 in Programming by Anirban Chand (41 points) | 26 views

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#self doubt output of the code
#include<stdio.h> int main() { printf("%10s\n","GATECSE"); printf("%4s\n","GATECSE"); printf("%2s\n","GATECSE"); printf("%5.2s\n","GATECSE"); return 0; }

asked Jun 11 in Programming by abhijeet at (9 points) | 12 views

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comma operator, assignment operator
i am not able to understand the difference between the 2. In both cases the 'printf' statements are similar, but producing different outputs. 1) int a,b,temp; printf("%d\n", temp=1,a=2,b=3); //output=temp=1 2) int a=1,b=2,temp=3; printf("%d\n", temp=a,a=b,b=temp); //output=b=3

asked Jun 11 in Programming by utkarsh-2512 (6 points) | 8 views

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Gate-2001:2 MARKS
int *g(void) { int *px; px = (int*) malloc (sizeof(int)); *px = 10; return px; }

asked Jun 9 in Programming by prajjwalsingh_11 (16 points) | 11 views

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programing and data structure
Please someone explain this problem.I am not able to understand.

asked Jun 9 in Programming by anonymous27 (6 points) | 15 views

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Self doubt-Arrays
Question: #include <stdio.h> #include <string.h> int main(void) { char line[100] = "hello\n"; printf( "%zu ", strlen( line ) ); return 0; } The output of the above program is: _____ ?

asked Jun 8 in Programming by Swati Dubey (10 points) | 21 views

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Ace_Datastructures
Choose incorrect statements from the options given below ? a stack and a queue can be implemented in a single array v[1...m]. ‘n’ circular queues can be implemented in a single array v[1...m], (m>>n) n1 stacks and n2=n-n1 queues can be implemented in an array v[1….m] (m >>n) None of the above Anyone please clarify.

asked Jun 8 in Programming by Shivateja MST (127 points) | 7 views

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Why value of I is 515 in this code
#include<stdio.h> int main() { union a { int i; char ch[2]; }; union a u; u.ch[0]=3; u.ch[1]=2; printf("%d, %d, %d\n",u.ch[0],u.ch[1], u.i); return 0; } Why I value is 515

asked Jun 6 in Programming by Muktiyar (6 points) | 6 views

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kanodia workbook edition 2011
#include<stdio.h> void fun(int arr[]) { int i; int arr_size = sizeof(arr)/sizeof(arr[0]); for (i = 0; i < arr_size; i++) printf("%d ", arr[i]); } int main() { int i; int arr[4] = {10, 20 ,30, 40}; fun(arr); fun(arr); } what will be printed in the output??

asked Jun 4 in Programming by pratyush12 (6 points) | 3 views

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The recursive programming bottom-up approach tends to have a stack overflow error. True / False

asked Jun 2 in Programming by Musa (11 points) | 6 views

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Programming: Abstraction
Which of the following statement(s) is/are TRUE? (i). Abstraction principle includes use abstraction whenever possible to avoid duplication (ii). Encapsulation and abstraction differ as binding and hiding respectively (iii). Logical, Physical and View are level of abstraction

asked May 29 in Programming by luc_Bloodstone (38 points) | 9 views

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Programming : Encapsulation
Which among the following would destroy the encapsulation mechanism if it was allowed in programming? 1. Using access declaration for local variable of main() function 2. Using access declaration for private members of base class 3.Using access declaration for public members of base class 4.Using access declaration for global variables

asked May 29 in Programming by luc_Bloodstone (38 points) | 2 views

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geeksforgeeks sudo placement
#include<stdio.h> int main() { char g[] = "geeksforgeeks"; printf("%s",g + g[6]-g[8]); } output -geeks. how to solve this “g+g[6]-g[8]”???

asked May 28 in Programming by Papun417 (7 points) | 15 views

+1 vote

1 answer

tail recursion
#include <stdio.h> int function(int arg) { static int num = 6; if(num <= 1) return num; return (arg + function(arg -= num--)); } int main(void) { printf("return = %d\n", function(16)); return 0; } what is the o/p for this prog

answered May 25 in Programming by Kushagra गुप्ता (415 points) | 34 views

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#self doubt no error even if ampersand is missing in scan

answered May 24 in Programming by praveen modala (15 points) | 12 views

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Data structures,recursion
Fib(n)=fib(n-1)+fib(n-2);if n>1 Fib(n)=1;If n=1 Fib(n)=0;If n=0 1) The value of Fibonacci(7)? 2) The no.of calls in Fibonacci(8)?

answered May 24 in Programming by praveen modala (15 points) | 17 views

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Time complexity of below program
what should be the time complexity of below program anyone can anyone please explain for(i=1;i<=n:++i) { for(i=1;i<=n^2:++i) { for(i=1;i<=n^3:++i) { x=y+z; } } }

answered May 23 in Programming by ramcharantej_24 (22 points) | 11 views

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Binary Tree Creation
This is function to create binary tree.But I am unable to write the base case for this recursion function.Any idea how it can be done? private static Node create() { Scanner sc = new Scanner(System.in); int value; System.out.println("Enter a value:" ... of " + value); newnode.right = create(); sc.close(); return newnode; } Thanks for your time and help in advance.

asked May 23 in Programming by amitnegi99 (6 points) | 8 views

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C programming ,Operators , increment decrement operators

asked May 21 in Programming by Amol Shukla (6 points) | 14 views

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2 answers

C programming Control Statement doubt
#include<stdio.h> int main() { char ch=’a’; switch(ch) { case ‘a’ && 1: printf(“Hello”); case ’b’ && 1: printf(“world”); break; default: printf(“GATE”); } }

answered May 16 in Programming by ramcharantej_24 (22 points) | 20 views

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Precedence of Expression evaluation in c programminh

asked May 11 in Programming by Sumit goyal 2 (7 points) | 22 views

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madeeasy workbook question of programming methodology

asked May 9 in Programming by Vikramaditya19 (6 points) | 12 views

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C programming airport question
Write a program You need to simulate the working of an airport. Let us consider a small but busy airport with two runways, one usually used for landings and one usually used for takeoffs. Planes arrive ready to land or ready to take off ... be stopped and both runways used to clear the backlog of landing planes. The simulation should run through many units of time

asked May 8 in Programming by Tanki (6 points) | 39 views

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GATE CS 2014 exam, Geeks for Geeks
Consider the following program in C language: #include <stdio.h> main() { int i; int *pi = &i; scanf("%d", pi); printf("%d\n", i+5); } Which one of the following statements is TRUE? (A) Compilation fails. ... is 5 more than the address of variable i. (D) On execution, the value printed is 5 more than the integer value entered. [closed]

asked May 7 in Programming by sristicse (6 points) | 12 views

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#MADE EASY WORKBOOK
Consider a 2D array with elements stored in the form of upper triangular matrix. The element must be crossed to read A[4,7] from the array [-6........8,-6.....8]

answered May 6 in Programming by Kushagra गुप्ता (415 points) | 17 views

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gradeup mocks for NIELIT . i have doubt in 3rd and 4th option.

asked May 2 in Programming by rohankr95 (6 points) | 14 views

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GATE CS 2018 mock set 2
S1 : Anyone of the followings can be used to declare a node for a singly linked list. If we use the first declaration, struct node * nodePtr; would be used to declare pointer to a node. If we use the second declaration, NODEPTR nodePtr; can ... false Both statements S1 and S2 are true D Neither statement S1 nor statement S2 is true Linked List GATE CS Mock 2018 | Set 2

asked Apr 29 in Programming by Jhaiyam (10 points) | 10 views

+1 vote

1 answer

GATE2020-CS-46 Video Solution
Consider the following C functions. int fun1(int n) { static int i= 0; if (n > 0) { ++i; fun1(n-1); } return (i); } int fun2(int n) { static int i= 0; if (n>0) { i = i+ fun1 (n) ; fun2(n-1) ; } return (i); } The return value of $\text{fun}2 (5)$ is _________

answered Apr 25 in Programming by amitkhurana512 (187 points) | 57 views

+1 vote

1 answer

GATE2020-CS-22 Video Solution
Consider the following C program. #include <stdio.h> int main () { int a[4] [5] = {{1, 2, 3, 4, 5}, {6, 7,8, 9, 10}, {11, 12, 13, 14, 15}, {16, 17,18, 19, 20}}; printf(“%d\n”, *(*(a+**a+2)+3)); return(0); } The output of the program is _______.

answered Apr 25 in Programming by amitkhurana512 (187 points) | 17 views

+1 vote

1 answer

GATE2020-CS-48 Video Solution
Consider the following C functions. int tob (int b, int* arr) { int i; for (i = 0; b>0; i++) { if (b%2) arr [i] = 1; else arr[i] = 0; b = b/2; } return (i); } int pp(int a, int b) { int arr[20]; int i, tot = 1, ex, len; ex = a; len = tob( ... ; i<len ; i++) { if (arr[i] ==1) tot = tot * ex; ex= ex*ex; } return (tot) ; } The value returned by $pp(3,4)$ is _______.

answered Apr 25 in Programming by amitkhurana512 (187 points) | 19 views

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gate 2020 cse programming recurrsion
The return value of fun2(5) is _______. [closed]

asked Apr 24 in Programming by Akram12345 (6 points) | 11 views

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self doubt linked list
code for reverse the circular doubly linked list ?

asked Apr 21 in Programming by arun_singh (6 points) | 4 views

+1 vote

1 answer

Made easy test series : Time complexity

answered Apr 21 in Programming by roh (17 points) | 83 views

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GATE2017-2-55 Video Solution
Consider the following C program. #include<stdio.h> #include<string.h> int main() { char* c=”GATECSIT2017”; char* p=c; printf(“%d”, (int)strlen(c+2[p]-6[p]-1)); return 0; } The output of the program is _______

asked Apr 19 in Programming by admin (3.6k points) | 2 views

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GATE2017-1-36 Video Solution
Consider the C functions foo and bar given below: int foo(int val) { int x=0; while(val > 0) { x = x + foo(val--); } return val; } int bar(int val) { int x = 0; while(val > 0) { x= ... result in: Return of $6$ and $6$ respectively. Infinite loop and abnormal termination respectively. Abnormal termination and infinite loop respectively. Both terminating abnormally.

asked Apr 19 in Programming by admin (3.6k points) | 6 views

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GATE2017-1-53 Video Solution
Consider the following C program. #include<stdio.h> #include<string.h> void printlength(char *s, char *t) { unsigned int c=0; int len = ((strlen(s) - strlen(t)) > c) ? strlen(s) : strlen(t); printf("%d\n", len); } ... defined in $string.h$ as returning a value of type $size\_t$, which is an unsigned int. The output of the program is __________ .

asked Apr 19 in Programming by admin (3.6k points) | 2 views

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GATE2015-1-35 Video Solution
What is the output of the following C code? Assume that the address of $x$ is $2000$ (in decimal) and an integer requires four bytes of memory. int main () { unsigned int x [4] [3] = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}, {10, 11, 12}}; printf ("%u, %u, %u", x + 3, *(x + 3), *(x + 2) + 3); } $2036, 2036, 2036$ $2012, 4, 2204$ $2036, 10, 10$ $2012, 4, 6$

asked Apr 19 in Programming by admin (3.6k points) | 2 views

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