Most viewed questions in Programming

+3 votes

1 answer

1

what is the difference between type conversion and type casting in c ?

asked May 10, 2016 in Programming by Vivek Jain Junior (787 points) | 16.1k views

+40 votes

9 answers

2

GATE2017-2-55
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 Feb 14, 2017 in Programming by Madhav Active (1.6k points) | 9.2k views

+61 votes

7 answers

3

GATE2017-1-53
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); } void main() ... is defined in $string.h$ as returning a value of type $size\_t$, which is an unsigned int. The output of the program is __________ .

asked Feb 14, 2017 in Programming by srestha Veteran (119k points) | 8.8k views

+48 votes

6 answers

4

GATE2017-1-36
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= x + bar( ... will result in: Return of $6$ and $6$ respectively. Infinite loop and abnormal termination respectively. Abnormal termination and infinite loop respectively. Both terminating abnormally.

asked Feb 14, 2017 in Programming by Arjun Veteran (431k points) | 8.6k views

+69 votes

5 answers

5

GATE2015-1-35
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); } $2036, 2036, 2036$ $2012, 4, 2204$ $2036, 10, 10$ $2012, 4, 6$

asked Feb 13, 2015 in Programming by makhdoom ghaya Boss (30.8k points) | 8.4k views

+34 votes

6 answers

6

GATE2017-1-13
Consider the following C code: #include<stdio.h> int *assignval (int *x, int val) { *x = val; return x; } void main () { int *x = malloc(sizeof(int)); if (NULL == x) return; x = assignval (x,0); if (x) { x = ( ... as $x == NULL$ and not as shown. compiles successfully but execution may result in dangling pointer. compiles successfully but execution may result in memory leak.

asked Feb 14, 2017 in Programming by Arjun Veteran (431k points) | 7.7k views

+38 votes

5 answers

7

GATE2017-1-55
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); }

asked Feb 14, 2017 in Programming by srestha Veteran (119k points) | 7.2k views

+51 votes

7 answers

8

GATE2006-IT-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, "brother"}; ... $\text{etter, u, 6, ungle}$ $\text{cetter, k, 6, jungle}$ $\text{etter, u, 8, ncestor}$

asked Nov 1, 2014 in Programming by Ishrat Jahan Boss (16.3k points) | 6.9k views

+40 votes

4 answers

9

GATE2003-2
Assume the following C variable declaration: int *A[10], B[10][10]; Of the following expressions: $A[2]$ $A[2][3]$ $B[1]$ $B[2][3]$ which will not give compile-time errors if used as left hand sides of assignment statements in a C program? I, II, and IV only II, III, and IV only II and IV only IV only

asked Sep 16, 2014 in Programming by Kathleen Veteran (52.2k points) | 6.6k views

+1 vote

1 answer

10

The number of possible ordered trees with 3 nodes A,B,C
amount of time it would take to send 500 packets using 6-packet size window and without sliding window will be, when the time to send in one direction is 5 ms 31000, 5000 4600, 21600 5000, 30000 30000, 5000.......... pls explain the logic behind?

asked Oct 16, 2015 in Programming by Himani Srivastava Junior (537 points) | 6.2k views

+40 votes

1 answer

11

GATE2013-42
What is the return value of $f(p,p)$, if the value of $p$ is initialized to $5$ before the call? Note that the first parameter is passed by reference, whereas the second parameter is passed by value. int f (int &x, int c) { c = c - 1; if (c==0) return 1; x = x + 1; return f(x,c) * x; }

asked Aug 7, 2014 in Programming by gatecse Boss (17.5k points) | 6.1k views

+44 votes

1 answer

12

GATE2015-3-48
Consider the following C program: #include<stdio.h> int main() { int i, j, k = 0; j=2 * 3 / 4 + 2.0 / 5 + 8 / 5; k-=--j; for (i=0; i<5; i++) { switch(i+k) { case 1: case 2: printf("\n%d", i+k); case 3: printf("\n%d", i+k); default: printf("\n%d", i+k); } } return 0; } The number of times printf statement is executed is _______.

asked Feb 16, 2015 in Programming by jothee Veteran (105k points) | 6k views

+48 votes

5 answers

13

GATE2006-IT-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) continue; ... $a = 12, b = 9$ $a = 3, b = 6$ $a = 3, b = 6$ $a = 6, b = 3$ $a = 15, b = 12$

asked Nov 1, 2014 in Programming by Ishrat Jahan Boss (16.3k points) | 6k views

+40 votes

3 answers

14

GATE2001-2.18
Consider the following three C functions: $[P1]$ int *g(void) { int x = 10; return (&x); } $[P2]$ int *g(void) { int *px; *px = 10; return px; } $[P3]$ int *g(void) { int *px; px = (int*) malloc (sizeof(int)); *px = 10; return px; } Which of the above three functions are likely to cause problems with pointers? Only $P3$ Only $P1$ and $P3$ Only $P1$ and $P2$ $P1, P2$ and $P3$

asked Sep 15, 2014 in Programming by Kathleen Veteran (52.2k points) | 5.9k views

+1 vote

1 answer

15

Find the minimum no of nodes in an avl tree of height 9?

asked May 3, 2016 in Programming by neha singh Active (1.3k points) | 5.8k views

+40 votes

3 answers

16

GATE2016-1-15
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 _________.

asked Feb 12, 2016 in Programming by Sandeep Singh Loyal (7.2k points) | 5.7k views

+28 votes

11 answers

17

GATE2017-1-35
Consider the following two functions. void fun1(int n) { if(n == 0) return; printf("%d", n); fun2(n - 2); printf("%d", n); } void fun2(int n) { if(n == 0) return; printf("%d", n); fun1(++n); printf("%d", n); } The output printed when $\text{fun1}(5)$ is called is $53423122233445$ $53423120112233$ $53423122132435$ $53423120213243$

asked Feb 14, 2017 in Programming by Arjun Veteran (431k points) | 5.7k views

+6 votes

2 answers

18

What is the difference between static scoping and dynamic scoping?

asked Oct 12, 2015 in Programming by sampad (427 points) | 5.7k views

+32 votes

4 answers

19

GATE2000-1.17, ISRO2015-79
Consider the following C declaration: struct ( short x[5]; union { float y; long z; } u; )t; Assume that the objects of the type short, float and long occupy $2$ bytes, $4$ bytes and $8$ bytes, respectively. The memory requirement for variable $t$, ignoring alignment consideration, is: $22$ bytes $14$ bytes $18$ bytes $10$ bytes

asked Sep 14, 2014 in Programming by Kathleen Veteran (52.2k points) | 5.7k views

+33 votes

2 answers

20

GATE2005-81a
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; } } The space complexity of the above code is? $O(1)$ $O(n)$ $O(n!)$ $n^n$

asked Sep 22, 2014 in Programming by Kathleen Veteran (52.2k points) | 5.6k views

+40 votes

3 answers

21

GATE2006-57
Consider this C code to swap two integers and these five statements: the code void swap (int *px, int *py) { *px = *px - *py; *py = *px + *py; *px = *py - *px; } S1: will generate a compilation error S2: may generate a segmentation fault ... swap procedure correctly for some but not all valid input pointers S5: may add or subtract integers and pointers S1 S2 and S3 S2 and S4 S2 and S5

asked Sep 26, 2014 in Programming by Rucha Shelke Active (3.3k points) | 5.5k views

+31 votes

7 answers

22

GATE2017-2-43
Consider the following snippet of a C program. Assume that swap $(\&x, \&y)$ exchanges the content of $x$ and $y$: int main () { int array[] = {3, 5, 1, 4, 6, 2}; int done =0; int i; while (done==0) { done =1; for (i=0; i<=4; i++) { if ( ... ; array[i-1]) { swap(&array[i], &array[i-1]); done =0; } } } printf( %d , array[3]); } The output of the program is _______

asked Feb 14, 2017 in Programming by Arjun Veteran (431k points) | 5.4k views

+36 votes

5 answers

23

GATE2015-3-26
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 _______.

asked Feb 15, 2015 in Programming by jothee Veteran (105k points) | 5.4k views

+2 votes

3 answers

24

The minimum number of temporary variables needed to swap the contents of two variables?

asked Sep 15, 2015 in Programming by goku (207 points) | 5.3k views

+30 votes

10 answers

25

GATE2016-1-35
What will be the output of the following $C$ program? void count (int n) { static int d=1; printf ("%d",n); printf ("%d",d); d++; if (n>1) count (n-1); printf ("%d",d); } void main(){ count (3); } $3 \ 1 \ 2 \ 2 \ 1 \ 3 \ 4 \ 4 \ 4$ $3 \ 1 \ 2 \ 1 \ 1 \ 1 \ 2 \ 2 \ 2$ $3 \ 1 \ 2 \ 2 \ 1 \ 3 \ 4$ $3 \ 1 \ 2 \ 1 \ 1 \ 1 \ 2$

asked Feb 12, 2016 in Programming by Sandeep Singh Loyal (7.2k points) | 5k views

+74 votes

2 answers

26

GATE2014-2-11
Suppose $n$ and $p$ are unsigned int variables in a C program. We wish to set p to $^nC_3$. If $n$ is large, which one of the following statements is most likely to set p correctly? $p = n * (n-1) * (n-2) / 6;$ $p = n * (n-1) / 2 * (n-2) / 3;$ $p = n * (n-1) / 3 * (n-2) / 2;$ $p = n * (n-1) * (n-2) / 6.0;$

asked Sep 28, 2014 in Programming by jothee Veteran (105k points) | 5k views

+17 votes

7 answers

27

GATE2018-2
Consider the following C program: #include<stdio.h> struct Ournode{ char x, y, z; }; int main() { struct Ournode p={'1', '0', 'a'+2}; struct Ournode *q=&p; printf("%c, %c", *((char*)q+1), *((char*)q+2)); return 0; } The output of this program is: 0, c 0, a+2 '0', 'a+2' '0', 'c'

asked Feb 14, 2018 in Programming by gatecse Boss (17.5k points) | 4.9k views

0 votes

1 answer

28

what is difference between deep binding and shallow binding? Explain with this code.

asked Dec 9, 2014 in Programming by Isha Karn (459 points) | 4.8k views

+17 votes

5 answers

29

GATE2005-1, ISRO2017-55
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 to a ... an integer pointer as argument and returns an integer A function that takes an integer pointer as argument and returns a function pointer

asked Sep 22, 2014 in Programming by Kathleen Veteran (52.2k points) | 4.8k views

+6 votes

2 answers

30

ISRO2016-25
What will be output of the following program? Assume that you are running this program in little-endian processor. #include<stdio.h> int main() { short a=320; char *ptr; ptr=(char *)&a; printf("%d",*ptr); return 0; } 1 320 64 Compilation error

asked Jul 3, 2016 in Programming by sourav. Boss (16.2k points) | 4.7k views

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author	user:martin
title	title:apple
content	content:apple
exclude	-tag:apple
force match	+apple
views	views:100
score	score:10
answers	answers:2
is accepted	isaccepted:true
is closed	isclosed:true

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