Most answered questions in Programming in C / GATE Overflow for GATE CSE

8 votes

7 answers

21

ISRO2014-32
What is the output of the following C program? #include<stdio.h> void main(void){ int shifty; shifty=0570; shifty=shifty>>4; shifty=shifty<<6; printf("The value of shifty is %o \n",shifty); } The value of shifty is 15c0 The value of shifty is 4300 The value of shifty is 5700 The value of shifty is 2700

What is the output of the following C program?#include<stdio.h void main(void){ int shifty; shifty=0570; shifty=shifty>>4; shifty=shifty<<6; printf("The value of shifty i...

ajit

8.1k views

ajit asked Sep 2, 2015

54 votes

7 answers

22

GATE CSE 2015 Set 1 | Question: 33
Consider the following pseudo code, where $x$ and $y$ are positive integers. begin q := 0 r := x while r ≥ y do begin r := r - y q := q + 1 end end The post condition that needs to be satisfied after the program terminates is $\{ r = qx + y \wedge r < y\}$ ... $\{ y = qx + r \wedge 0 < r < y\}$ $\{ q + 1 < r - y \wedge y > 0\}$

Consider the following pseudo code, where $x$ and $y$ are positive integers.begin q := 0 r := x while r ≥ y do begin r := r - y q := q + 1 end endThe post condition tha...

makhdoom ghaya

15.9k views

makhdoom ghaya asked Feb 13, 2015

36 votes

6 answers

23

GATE CSE 2017 Set 2 | Question: 37
Consider the C program fragment below which is meant to divide $x$ by $y$ using repeated subtractions. The variables $x$, $y$, $q$ and $r$ are all unsigned int. while (r >= y) { r=r-y; q=q+1; } Which of the following conditions on the variables $x, y, q$ and $r$ ... $(q==0) \ \&\& \ (y>0)$

Consider the C program fragment below which is meant to divide $x$ by $y$ using repeated subtractions. The variables $x$, $y$, $q$ and $r$ are all unsigned int.while (r >...

Arjun

14.7k views

Arjun asked Feb 14, 2017

5 votes

6 answers

24

column major in 3d array
Consider 3 dimensional Array A[90] [30] [40] stored in linear array in column major order. If the base address starts at 10. The location of A[20] [20] [30] is __________ . [Assume the first element is stored at A[1][1][1] and each element take 1 B].

Consider 3 dimensional Array A[90] [30] [40] stored in linear array in column major order. If the base address starts at 10. The location of A[20] [20] [30] is __________...

Pankaj Joshi

15.9k views

Pankaj Joshi asked Jan 26, 2017

41 votes

6 answers

25

GATE CSE 2016 Set 2 | Question: 37
Consider the following program: int f (int * p, int n) { if (n <= 1) return 0; else return max (f (p+1, n-1), p[0] - p[1]); } int main () { int a[] = {3, 5, 2, 6, 4}; printf(" %d", f(a, 5)); } Note: $\max (x, y)$ returns the maximum of $x$ and $y$. The value printed by this program is ________.

Consider the following program:int f (int * p, int n) { if (n <= 1) return 0; else return max (f (p+1, n-1), p[0] - p ); } int main () { int a[] = {3, 5, 2, 6, 4}; ...

Akash Kanase

13.7k views

Akash Kanase asked Feb 12, 2016

0 votes

6 answers

26

What is the approach to find preorder from given inorder?
The in-order traversal of a tree resulted in FBGADCE. Then pre-order traversal would result in. a)FGBDECA b)ABFGCDE C)BFGCDEA d)AFGBDEC

The in-order traversal of a tree resulted in FBGADCE. Then pre-order traversal would result in.a)FGBDECAb)ABFGCDEC)BFGCDEAd)AFGBDEC

Umang Raman

5.6k views

Umang Raman asked Sep 25, 2015

110 votes

6 answers

27

GATE CSE 2015 Set 1 | Question: 35
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); } $2036, 2036, 2036$ $2012, 4, 2204$ $2036, 10, 10$ $2012, 4, 6$

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 ...

makhdoom ghaya

28.5k views

makhdoom ghaya asked Feb 13, 2015

74 votes

6 answers

28

GATE IT 2006 | Question: 51
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); } $8, -12, 7, 23, 8$ $8, 8, 7, 23, 7$ $-12, -12, 27, -31, 23$ $-12, -12, 27, -31, 56$

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, 5...

Ishrat Jahan

13.1k views

Ishrat Jahan asked Oct 31, 2014

85 votes

6 answers

29

GATE IT 2006 | Question: 50
Which one of the choices given below would be printed when the following program is executed? #include <stdio.h> void swap (int *x, int *y) { static int *temp; temp = x; x = y; y = temp; } void printab () { static int i, a = -3, b = -6; i = 0; while (i <= 4) { if ((i++)%2 == 1 ... $a = 12, b = 9$ $a = 3, b = 6$ $a = 3, b = 6$ $a = 6, b = 3$ $a = 15, b = 12$

Which one of the choices given below would be printed when the following program is executed?#include <stdio.h void swap (int *x, int *y) { static int *temp; temp = x; x ...

Ishrat Jahan

25.8k views

Ishrat Jahan asked Oct 31, 2014

101 votes

6 answers

30

GATE IT 2006 | Question: 49
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, " ... $\text{etter, u, 6, ungle}$ $\text{cetter, k, 6, jungle}$ $\text{etter, u, 8, ncestor}$

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, "be...

Ishrat Jahan

27.3k views

Ishrat Jahan asked Oct 31, 2014

68 votes

5 answers

31

GATE CSE 2017 Set 1 | Question: 55
The output of executing the following C program is _______________ . #include<stdio.h> int total(int v) { static int count = 0; while(v) { count += v&1; v >>= 1; } return count; } void main() { static int x=0; int i=5; for(; i>0; i--) { x = x + total(i); } printf("%d\n", x); }

The output of executing the following C program is _______________ .#include<stdio.h int total(int v) { static int count = 0; while(v) { count += v&1; v >>= 1; } return c...

srestha

22.6k views

srestha asked Feb 14, 2017

20 votes

5 answers

32

TIFR CSE 2017 | Part B | Question: 5
Consider the following psuedocode fragment, where $y$ is an integer that has been initialized. int i=1 int j=1 while (i<10): j=j*i i=i+1 if (i==y): break end if end while Consider the following statements: $(i==10)$ or $(i==y)$ If ... the end of the while loop? Choose from the following options. i only iii only ii and iii only i, ii, and iii None of the above

Consider the following psuedocode fragment, where $y$ is an integer that has been initialized.int i=1 int j=1 while (i<10): j=j*i i=i+1 if (i==y): break end if end whileC...

go_editor

3.2k views

go_editor asked Dec 23, 2016

19 votes

5 answers

33

GATE CSE 1989 | Question: 3-i
An unrestricted use of the "go to" statement is harmful because of which of the following reason (s): It makes it more difficult to verify programs. It makes programs more inefficient. It makes it more difficult to modify existing programs. It results in the compiler generating longer machine code.

An unrestricted use of the "go to" statement is harmful because of which of the following reason (s):It makes it more difficult to verify programs.It makes programs more ...

makhdoom ghaya

4.4k views

makhdoom ghaya asked Nov 27, 2016

35 votes

5 answers

34

GATE CSE 2005 | Question: 81b
double foo(int n) { int i; double sum; if(n == 0) { return 1.0; } else { sum = 0.0; for(i = 0; i < n; i++) { sum += foo(i); } return sum; } } Suppose we modify the above function $foo()$ ... time complexity for function $foo()$ is significantly reduced. The space complexity of the modified function would be: $O(1)$ $O(n)$ $O(n^2)$ $n!$

double foo(int n) { int i; double sum; if(n == 0) { return 1.0; } else { sum = 0.0; for(i = 0; i < n; i++) { sum += foo(i); } return sum; } }Suppose we modify the above f...

go_editor

11.0k views

go_editor asked Nov 14, 2016

2 votes

5 answers

35

GATE Overflow | Programming | Test 1 | Question: 21
The value returned by the following code is _____ int foo() { int a[] = { 10, 20, 30, 40, 50, 60 }; int *p = &a[1] , *q = &a[5] ; return q-p; }

The value returned by the following code is _____int foo() { int a[] = { 10, 20, 30, 40, 50, 60 }; int *p = &a , *q = &a[5] ; return q-p; }

Arjun

1.7k views

Arjun asked Oct 18, 2016

9 votes

5 answers

36

ISRO2015-75
The for loop for (i=0; i<10; ++i) printf("%d", i&1); prints 0101010101 0111111111 0000000000 1111111111

The for loopfor (i=0; i<10; ++i) printf("%d", i&1);prints0101010101011111111100000000001111111111

go_editor

6.3k views

go_editor asked Jun 21, 2016

7 votes

5 answers

37

ISRO2015-68
Consider the following program fragment if(a > b) if(b > c) s1; else s2; s2 will be executed if a <= b b > c b >= c and a <= b a > b and b <= c

Consider the following program fragment if(a b) if(b c) s1; else s2;s2 will be executed ifa <= bb cb >= c and a <= ba b and b <= c

ajit

5.8k views

ajit asked Oct 12, 2015

2 votes

5 answers

38

what is the output of the following program code?
void myfunc(int X){ if(X > 0) myfunc( --X ); printf("%d", X); } int main(){ myfunc(5); return 0; } 0,0,1,2,3,4 4,3,2,1,0 4,3,2,1,0,0 0,1,2,3,4

void myfunc(int X){ if(X 0) myfunc( X ); printf("%d", X); } int main(){ myfunc(5); return 0; }0,0,1,2,3,44,3,2,1,04,3,2,1,0,00,1,2,3,4

debanjan sarkar

6.6k views

debanjan sarkar asked Sep 3, 2015

35 votes

5 answers

39

GATE CSE 2015 Set 1 | Question: 1‏1
The output of the following C program is_____________. void f1 ( int a, int b) { int c; c = a; a = b; b = c; } void f2 ( int * a, int * b) { int c; c = * a; *a = *b; *b = c; } int main () { int a = 4, b = 5, c = 6; f1 ( a, b); f2 (&b, &c); printf ("%d", c - a - b); }

The output of the following C program is_____________.void f1 ( int a, int b) { int c; c = a; a = b; b = c; } void f2 ( int * a, int * b) { int c; c = * a; *a = *b; *b = ...

makhdoom ghaya

12.2k views

makhdoom ghaya asked Feb 12, 2015

32 votes

5 answers

40

GATE IT 2007 | Question: 31
Consider the C program given below : #include <stdio.h> int main () { int sum = 0, maxsum = 0, i, n = 6; int a [] = {2, -2, -1, 3, 4, 2}; for (i = 0; i < n; i++) { if (i == 0 || a [i] < 0 || a [i] < a [ ... } if (sum > maxsum) maxsum = sum ; printf ("%d\n", maxsum); } What is the value printed out when this program is executed? $9$ $8$ $7$ $6$

Consider the C program given below : #include <stdio.h int main () { int sum = 0, maxsum = 0, i, n = 6; int a [] = {2, -2, -1, 3, 4, 2}; for (i = 0; i < n; i++) { if (i =...

Ishrat Jahan

11.0k views

Ishrat Jahan asked Oct 29, 2014

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