Recent questions tagged programming - GATE CSE Doubts

0 votes

0 answers

GATE1987-7a explanation
List the invariant assertions at points $A, B, C,D,$ and $E$ in program given below: Program division (input, output) Const dividend = 81; divisor = 9; Var remainder, quotient:integer begin (*(dividend >= 0) AND (divisor > 0)* ... E*) end https://gateoverflow.in/82425/gate1987-7a?show=316413#a316413 Can someone elaborate the answer given by Arjun sir in the above link?

asked Mar 25 in Programming by GATE_aspirant_2021 (7 points) | 5 views

+1 vote

1 answer

A Question on C-Programming Pointers (Geeks For Geeks)

asked Mar 4 in Programming by dishendra (7 points) | 15 views

0 votes

0 answers

Applied course test series : Pointers
#include <stdio.h> int main() { char str[]="APPLIED"; const char *ptr; ptr=str; ptr++; printf("%s",--ptr); return 0; } In this question my doubt is that since pointer is a constant pointer then why ‘ptr++’ is not giving error?

asked Jan 28 in Programming by vishal burnwal (135 points) | 34 views

0 votes

0 answers

ACE Test FLT-program
What is difference between this program and GATE2019 question(link given below)? In this test question, it is taking value by address, so that is the reason to not returning value to the main? But here https://gateoverflow.in/302830/gate2019-18 just local variable returning the value, Sothe value is intact in main() program too?

asked Jan 28 in Programming by srestha (683 points) | 26 views

0 votes

0 answers

Ace test series : Programming and Data Structure

asked Jan 15 in Programming by Chirag Shilwant (180 points) | 11 views

0 votes

1 answer

gate applied course
in solution they used shortcircuiting but precedence of bracket is highest so shouldn’t it be evaluated first?

asked Jan 12 in Programming by abhinav649 (67 points) | 24 views

0 votes

1 answer

Ace test series: C output
What is the output? Any reference for these kind of argument passing.

asked Jan 7 in Programming by priyesh9875 (59 points) | 29 views

0 votes

0 answers

Made easy test series programming self doubt
here the function calling will be 2 times or 3 and even i am not getting why void fun is written inside main can we write like this made-easy-test-series

asked Jan 1 in Programming by akku_126 (6 points) | 18 views

0 votes

1 answer

ProgrammingLanguageC
#include <stdio.h> int main(void) { void fun(); fun(); fun(); } void fun(){ static int i = 1; auto int j = 5 ; printf("%d",i++); printf("%d",j++); } What will be the output of the code

asked Dec 25, 2019 in Programming by grv_99 (9 points) | 44 views

+1 vote

0 answers

Why this code is printing "0"? #ACE_TEST_Series.
#include <stdio.h> int main() { static int x = 1; if (x--) main(); else printf("%d", x+1); return 0; } 1 0 run time error None of these.

asked Dec 23, 2019 in Programming by `JEET (179 points) | 30 views

0 votes

0 answers

ACE-Programming test
int DO(struct Node *root){ int res=0; if(root==NULL) return 0; if((root->left==NULL && root->right!=NULL)||(root->left!=NULL&&root->right==NULL)) res++; res+=(DO(root->left)+DO(root->right)); return res; } What does DO() return?

asked Dec 21, 2019 in Programming by srestha (683 points) | 13 views

0 votes

0 answers

ACE-Programming
void main(){ int const *p=5 printf("%d",++(*p)); } Will this program give runtime error or compile time error?Plz explain , how do we know which one will give compile time error and which one runtime error?

asked Dec 21, 2019 in Programming by srestha (683 points) | 16 views

0 votes

0 answers

Self doubt: Programming basic
If we give & in scanf, it will read input given, like this scanf("%d",&x); Now, if we not give & in scanf,then what will it do,? Will it give error?, like this scanf("%d",x);

asked Dec 18, 2019 in Programming by srestha (683 points) | 22 views

0 votes

0 answers

ACE Test Programming
int foo(char *s, int x) { int i=0; if(x==0) return 1; for(i=0;i<strlen(s);i++) { x=x+i; if(x%2)continue; x=foo(s+1,x-1); } return x; } What will be output of foo(“gate”,2)??

asked Dec 17, 2019 in Programming by srestha (683 points) | 14 views

0 votes

1 answer

Self doubt:Programming ACE
void find(char *p) { char *q=p; *q++; *++q; printf("%c",*q); } What will be output of above function for functin call find( gateexam )? Now, I thought *q++; //here value of *q, i.e. g gets incremented and will be h Next ... / here pointer q incremented and takes it's value i.e. a So, a will be printed. But unfortunately it prints t , where am I missing?

asked Dec 17, 2019 in Programming by srestha (683 points) | 36 views

0 votes

0 answers

Self modified question : ACE
void main(){ register int a,b,sum; int *p; p=&a; printf("%d",*p); } void main(){ static int a,b,sum; int *p; p=&a; printf("%d",*p); } What both code will print and why?

asked Dec 17, 2019 in Programming by srestha (683 points) | 16 views

0 votes

1 answer

Made easy mcq practice book
In which of the following cases, linked list implementation of sparse matrices consumes the same memory space as the conventional way of storing the entire array? (Assume all data-types need the same amount of storage.) A. 5 x 6 matrix with 9 non-zero entries B. 5 ... with 8 non-zero entries C. 6 x 5 matrix with 8 non-zero entries D. 6 x 5 matrix with 9 non-zero entries

asked Nov 23, 2019 in Programming by Jyoti Kumari97 (27 points) | 34 views

0 votes

0 answers

self doubt in programming
Why this thing is true? Any logic to it? Or it has to be remembered only? *(A[0] + 0) = A[0][0]

asked Nov 18, 2019 in Programming by `JEET (179 points) | 14 views

0 votes

1 answer

Madeeasy Test Series programming
int print1(void) { static int x = 10; x += 5; return x; } int print2(void) { static int x; x = 10; x += 5; return x; } int main() { int x; x = print1(); x += print1(); x += print2(); x += print2(); printf("%d",x ... (), it will take x = 10, but it should take x = 15, as we know x is static variable ?? and static variable initialized only once in a program.

asked Nov 17, 2019 in Programming by MRINMOY_HALDER (37 points) | 28 views

0 votes

0 answers

pointer Assignment
#include<stdio.h> int main() { int a[5]={1,2,3,4,5}; int *ptr=(int*)(&a+1);//why typecasting has done here? printf("%d%d",*(a+1),*(ptr-1)); } output is 25.can someone explain this?

asked Nov 14, 2019 in Programming by Arun Rout (6 points) | 28 views

0 votes

0 answers

Programming doubt (GO site)
Write the condition , for which following program will print “Hello World” #include <stdio.h> int main() { if() { printf("Hello "); } else { printf("World\n"); } return 0; }

asked Nov 13, 2019 in Programming by srestha (683 points) | 21 views

0 votes

1 answer

uupcl 2014 question
Find the output for the given code #include int main() { char *ptr = 0; *ptr = 'A'; printf("value in pointer ptr is %c\n", *ptr); return 0; } 1) 65 2) compile time error 3) 0 4) Null pointer assignment

asked Nov 2, 2019 in Programming by Dharmendra Tiwari (10 points) | 25 views

0 votes

0 answers

TIme complexity Made easy
What is time complexity for this function?

asked Oct 17, 2019 in Algorithms by vupadhayayx86 (6 points) | 26 views

0 votes

1 answer

MADE EASY: C programming
Let X and Y denote the number of 0’s and 1’s printed by the above program. Then the value of 2X + Y will be equal to___________

asked Oct 14, 2019 in Programming by Debapaul (699 points) | 55 views

0 votes

0 answers

Self Doubt: Programming in C
#include <stdio.h> int main() { long int a = 0x7fffffff * 0x7fffffff; long int b = 0x7fffffff * 0x7fffffffl; printf("a = %ld, b = %ld\n", a, b); return 0; } What will be output if sizeof(int) is 4 and sizeof(long int) is 8. Having trouble with the hexadecimals. :o

asked Oct 12, 2019 in Programming by Sambhrant Maurya (401 points) | 11 views

0 votes

0 answers

programming question made easy 2020
Which of the following statements is correct? Void pointers can be used for de-referencing. Arithmetic operations can be applies on void pointers. The default value of extern class of storage is garbage. A particular extern variable can be declared many times, but ... D) , i wanna know if its right or not and if it is then could anyone explain me with an example.

asked Oct 11, 2019 in Programming by Priyansh Singh (257 points) | 13 views

0 votes

0 answers

Array increment decrement
Solution are

asked Oct 2, 2019 in Programming by amit166 (139 points) | 20 views

0 votes

0 answers

Made Easy Programming and DS test 1

asked Oct 1, 2019 in Programming by luc_Bloodstone (36 points) | 19 views

0 votes

0 answers

Array c question

asked Sep 26, 2019 in Programming by amit166 (139 points) | 16 views

0 votes

0 answers

Self doubt on ternary operator and expression evaluation

asked Sep 17, 2019 in Programming by Sukhbir Singh (8 points) | 16 views

0 votes

0 answers

Doubt regarding time complexity of Heap sort
for a max heapify algo, the space complexity should be O(logn+1)=O(logn) , as for eg in the posted fig in memory stack the max heapify will go for node 1 ,2,4,9 which is always one greater than height of tree

asked Sep 12, 2019 in Algorithms by PRANAVCOOL (6 points) | 10 views

0 votes

1 answer

Cisco sytem interview question
Can someone please expain the output of these two programs. #include <iostream> using namespace std; int main() { int x = 1, y = 1; y = ++ x + ++ y; cout << "x = " << x << endl; cout << "y = " < ... for Software Engineer / Developers x = x++ + ++y; y = ++x + ++y; what are the values of x,y after these are executed ?

asked Sep 11, 2019 in Programming by `JEET (179 points) | 22 views

0 votes

0 answers

Sequence Points and Side Effects in C-Programming
There was a question asked in gate 2013 I am adding the link here https://gateoverflow.in/60/gate2013-42 there are these concepts called sequence point and side effects so, can anyone please explain these concepts in more detail as I am ... discussed in Dennis Ritchie's C but due to very little explanation I didn't get it at all. Thanks in advance.

asked Sep 7, 2019 in Programming by setu bhaskar (7 points) | 15 views

0 votes

3 answers

#ProgrammingInC Tell Output of following question. Self Doubt.

asked Sep 2, 2019 in Programming by iarnav (76 points) | 33 views

0 votes

2 answers

Self Doubt in pointer
Suppose, we are subtracting two pointers value(like, p1-p2) and printing it “%d” format. Do we get only number of elements between that two pointers?? Suppose we want to subtract two addresses. Does below line gives the difference between addresses between them?? printf("%p",(p1-p2)); or printf("%x",(p1-p2));

asked Sep 2, 2019 in Programming by srestha (683 points) | 19 views

0 votes

0 answers

Self Doubt on GATE question Program
https://gateoverflow.in/302795/gate2019-53 what *(b-i) means?? How it will be 10,8,6,4 like this?? i value is decreasing by 0,1,2 like this Then how it is subtracted from an address b and getting a value?? Suppose, every integer is 4 byte and address of ... $1012??i.e. 8$

asked Sep 1, 2019 in Programming by srestha (683 points) | 33 views

0 votes

1 answer

Self Doubt on Programming
Suppose we are passing the address of an array as a parameter Then can we get different result for call by reference, call by name and call by value result?

asked Aug 31, 2019 in DS by srestha (683 points) | 20 views

0 votes

0 answers

Self Doubt: Why both Program giving different output?

asked Aug 30, 2019 in Programming by srestha (683 points) | 29 views

0 votes

0 answers

Self Doubt on Array
Suppose, there is an unsorted array and we want insert an element $x$ after element $y$ in array. What will be T.C. for it?? See I know it needs time to search the element in $O\left ( n \right )$ time and then Shift every element to make a space for it. But ... $O\left ( n \right )\times O\left ( n \right )$?? Can someone plz clarify it with an algorithm.

asked Aug 30, 2019 in Programming by srestha (683 points) | 8 views

0 votes

0 answers

Loop Invariant : Doubt
What is loop invariant exactly check?? I know definition, but while saw this question (https://gateoverflow.in/39578/gate2016-2-35), I checked, here option B) and option C) , both are correct. But, answer is C). Is it because, in option C ... before loop condition and right side of equal to operator checks after loop condition?? But in option B) such thing is not happening??

asked Aug 30, 2019 in Programming by srestha (683 points) | 11 views

Page:

1
2
3
next »

3,511 questions

1,656 answers

10,449 comments

90,037 users