Highest voted questions in Programming in C / GATE Overflow for GATE CSE

132 votes

4 answers

1

GATE CSE 2014 Set 2 | Question: 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? $p = n * (n-1) * (n-2) / 6;$ $p = n * (n-1) / 2 * (n-2) / 3;$ $p = n * (n-1) / 3 * (n-2) / 2;$ $p = n * (n-1) * (n-2) / 6.0;$

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...

go_editor

15.8k views

go_editor asked Sep 28, 2014

110 votes

6 answers

2

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

28.6k views

makhdoom ghaya asked Feb 13, 2015

104 votes

7 answers

3

GATE CSE 2017 Set 1 | Question: 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 ... in: Return of $6$ and $6$ respectively. Infinite loop and abnormal termination respectively. Abnormal termination and infinite loop respectively. Both terminating abnormally.

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)...

Arjun

25.7k views

Arjun asked Feb 14, 2017

102 votes

9 answers

4

GATE CSE 2017 Set 1 | Question: 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); } ... in $string.h$ as returning a value of type $size\_t$, which is an unsigned int. The output of the program is __________ .

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...

srestha

25.4k views

srestha asked Feb 14, 2017

101 votes

6 answers

5

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

27.4k views

Ishrat Jahan asked Oct 31, 2014

88 votes

7 answers

6

GATE CSE 2017 Set 1 | Question: 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); ... and not as shown. compiles successfully but execution may result in dangling pointer. compiles successfully but execution may result in memory leak.

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...

Arjun

35.7k views

Arjun asked Feb 14, 2017

85 votes

6 answers

7

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

25.9k views

Ishrat Jahan asked Oct 31, 2014

78 votes

4 answers

8

GATE CSE 2006 | Question: 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 ... 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

Consider this C code to swap two integers and these five statements: the codevoid swap (int *px, int *py) { *px = *px - *py; *py = *px + *py; *px = *py - *px; }S1...

Rucha Shelke

21.2k views

Rucha Shelke asked Sep 26, 2014

77 votes

1 answer

9

GATE CSE 2015 Set 3 | Question: 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); ... : printf("\n%d", i+k); default: printf("\n%d", i+k); } } return 0; } The number of times printf statement is executed is _______.

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: ...

go_editor

22.9k views

go_editor asked Feb 16, 2015

74 votes

6 answers

10

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

13.2k views

Ishrat Jahan asked Oct 31, 2014

73 votes

2 answers

11

GATE CSE 2013 | Question: 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; }

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 ...

gatecse

21.4k views

gatecse asked Aug 7, 2014

72 votes

4 answers

12

GATE CSE 2003 | Question: 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

Assume the following C variable declaration:int *A[10], B[10][10];Of the following expressions:$A $$A [3]$$B $$B [3]$which will not give compile-time errors if used as le...

Kathleen

30.4k views

Kathleen asked Sep 16, 2014

70 votes

13 answers

13

GATE CSE 2017 Set 2 | Question: 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 _______

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; }T...

Madhav

28.7k views

Madhav asked Feb 14, 2017

68 votes

5 answers

14

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

22.8k views

srestha asked Feb 14, 2017

65 votes

3 answers

15

GATE IT 2008 | Question: 51
Consider the C program given below. What does it print? #include <stdio.h> int main () { int i, j; int a [8] = {1, 2, 3, 4, 5, 6, 7, 8}; for(i = 0; i < 3; i++) { a[i] = a[i] + 1; i++; } i--; for (j = 7; j > 4; j--) { int i = j/2; a[i] = a[i] - 1; } printf ("%d, %d", i, a[i]); } $2, 3$ $2, 4$ $3, 2$ $3, 3$

Consider the C program given below. What does it print?#include <stdio.h int main () { int i, j; int a [8] = {1, 2, 3, 4, 5, 6, 7, 8}; for(i = 0; i < 3; i++) { a[i] = a[i...

Ishrat Jahan

15.1k views

Ishrat Jahan asked Oct 28, 2014

62 votes

11 answers

16

GATE CSE 2015 Set 3 | Question: 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 _______.

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++; print...

go_editor

23.0k views

go_editor asked Feb 15, 2015

62 votes

5 answers

17

GATE CSE 2014 Set 1 | Question: 10
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? Compilation fails. Execution ... $5$ more than the address of variable $i$. On execution, the value printed is $5$ more than the integer value entered.

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...

go_editor

17.7k views

go_editor asked Sep 26, 2014

62 votes

3 answers

18

GATE CSE 2001 | Question: 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; ... 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 $P3$

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 *p...

Kathleen

24.7k views

Kathleen asked Sep 14, 2014

59 votes

4 answers

19

GATE CSE 2014 Set 2 | Question: 40
Consider the following function. double f(double x){ if( abs(x*x - 3) < 0.01) return x; else return f(x/2 + 1.5/x); } Give a value $q$ (to $2$ decimals) such that $f(q)$ will return $q$:_____.

Consider the following function.double f(double x){ if( abs(x*x - 3) < 0.01) return x; else return f(x/2 + 1.5/x); }Give a value $q$ (to $2$ decimals) such that $f(q)$ wi...

go_editor

19.6k views

go_editor asked Sep 28, 2014

58 votes

3 answers

20

GATE CSE 2016 Set 1 | Question: 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); printf("%d\n", a); } The output of the program is _________.

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...

Sandeep Singh

18.3k views

Sandeep Singh asked Feb 12, 2016

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