Recent questions tagged programming-in-c / GATE Overflow for GATE CSE

1 votes

2 answers

1291

C Programming

nitish

1.3k views

nitish asked Jun 1, 2017

0 votes

4 answers

1292

programming Strings
For the following program: #include<stdio.h> char *getString() { char *str = "GfG"; return str; } int main() {getString(); printf("%s", str); // Gives error, but printf("%s", getString()); works perfect. return ... does not get destroyed, wh can't we print the value using str? Why does the program give error saying that str is undeclared?

For the following program:#include<stdio.h>char *getString(){char *str = "GfG";return str; }int main(){getString();printf("%s", str); // Gives error, but printf("%s", get...

Bongbirdie

1.5k views

Bongbirdie asked May 29, 2017

0 votes

2 answers

1293

Programming Scope of variables
The following program runs perfectly fine without showing compilation error. I am unable to understand why as 'c' is a local variable of 'function_addition'. So, shouldn't it throw an error? #include<stdio.h> int ... ambiguity as to why the first one prints the value of c correctly whereas the second program shows an error.

The following program runs perfectly fine without showing compilation error. I am unable to understand why as 'c' is a local variable of 'function_addition'. So, shouldn'...

Bongbirdie

998 views

Bongbirdie asked May 28, 2017

0 votes

2 answers

1294

oop c++
What is meant by precedence rule for evaluation of expressions?

What is meant by precedence rule for evaluation of expressions?

iarnav

484 views

iarnav asked May 27, 2017

0 votes

1 answer

1295

oop c++
What are structured languages and what are their major features?

What are structured languages and what are their major features?

iarnav

244 views

iarnav asked May 27, 2017

0 votes

1 answer

1296

oop c++
Consider a pointer declaration int i=10,*p; p=&x; Is p – – ; a valid statement, justify? explain in as simple way as possible.

Consider a pointer declaration int i=10,*p; p=&x;Is p – – ; a valid statement, justify? explain in as simple way as possible.

iarnav

270 views

iarnav asked May 27, 2017

0 votes

1 answer

1297

oop c++
What is the main difference between array of pointers and pointer to an array? please Explain with the help of a program/example

What is the main difference between array of pointers and pointer to an array? please Explain with the help of a program/example

iarnav

243 views

iarnav asked May 27, 2017

0 votes

0 answers

1298

oop c++
how to Write a program to search a key string in a array of strings,if a key string is found then return its position and then replace that key string by any string using pointers.

how to Write a program to search a key string in a array of strings,if a key string is found then return its position and then replace that key string by any string using...

iarnav

177 views

iarnav asked May 27, 2017

0 votes

1 answer

1299

oop c++
What is the difference between static and dynamic memory allocation ?

What is the difference between static and dynamic memory allocation ?

iarnav

170 views

iarnav asked May 27, 2017

0 votes

1 answer

1300

oop c++
. How are stream operators overloaded in cpp?

. How are stream operators overloaded in cpp?

iarnav

143 views

iarnav asked May 27, 2017

0 votes

1 answer

1301

oop c++
What are the advantages of scope resolutor & referencing in c++?

What are the advantages of scope resolutor & referencing in c++?

iarnav

287 views

iarnav asked May 27, 2017

0 votes

1 answer

1302

oop c++
At what time are overloaded methods (as opposed to overridden) resolved?

At what time are overloaded methods (as opposed to overridden) resolved?

iarnav

168 views

iarnav asked May 27, 2017

0 votes

0 answers

1303

Programming Assignment
Write a bubble sort code which should work for any array size up to the memory limit. The program should print the output using a different function, and also must print the number of swaps which took place. Run the code for input sizes, 500, 50000 and ... ---- why rand() should be used in average and worst cases? If without rand() we implement it ,what will be disadvantage

Write a bubble sort code which should work for any array size up to the memory limit. The program should print the output using a different function, and also must print ...

srestha

830 views

srestha asked May 25, 2017

0 votes

1 answer

1304

The C Programming Language .Dennis Ritchie( Character pointers and functions)
/*strcpy"copy t to s; */ void strcpy(char *s, char *t) { while((*s++=*t++) !='\0'); } Can anyone explain how *s++ or *t++ is being executed. As * and ++ are ... take *s++ is the increment operator being executed first or the dereferencing operator?. Can anyone show the steps of executing this function.

/*strcpy"copy t to s; */void strcpy(char *s, char *t){while((*s++=*t++) !='\0');} Can anyone explain how *s++ or *t++ is being executed. As * and ++ are unary operators h...

Manu FG

1.3k views

Manu FG asked May 21, 2017

1 votes

1 answer

1305

What trees to study in Data structure
Hello may someone tell me what trees need to be studied in Data Structures subject.

Hello may someone tell me what trees need to be studied in Data Structures subject.

iarnav

589 views

iarnav asked May 21, 2017

0 votes

2 answers

1306

Pop() function of stack
Let's say stack is implemented as Link List, then what will pop() function will return to the calling function? The popped element or the what, because while popping at the end we are freeing up the space in which TOS element is present whic needs to be popped!

Let's say stack is implemented as Link List, then what will pop() function will return to the calling function? The popped element or the what, because while popping at t...

iarnav

712 views

iarnav asked May 17, 2017

2 votes

1 answer

1307

#PROG
Predict the output of following program. Assume that the numbers are stored in 2's complement form. #include<stdio.h> int main() { unsigned int x = -1; int y = ~0; if (x == y) printf("same"); else printf("not same"); return 0; } 1.SAME 2.NOT SAME

Predict the output of following program. Assume that the numbers are stored in 2's complement form.#include<stdio.h>int main(){ unsigned int x = -1; int y = ~0; if...

Shashank Kumar Mishr

1.3k views

Shashank Kumar Mishr asked May 17, 2017

0 votes

2 answers

1308

Do while
What is the out put of the following code, i think it should be infinite loop, Correct me if iam wrong. When i execute it, only it is printing "Hello" only one Time. #include<stdio.h> int main() { int i = 1; do { printf("Hello\n"); continue; i--; }while(i>=1); return 0; }

What is the out put of the following code,i think it should be infinite loop, Correct me if iam wrong.When i execute it, only it is printing "Hello" only one Time. #inclu...

AnilGoudar

483 views

AnilGoudar asked May 14, 2017

0 votes

0 answers

1309

Test by Bikram | Programming | Test 2 | Question: 6
Which among following statements is/are TRUE? & is bit-wise and && is a logical operator & returns an integer value whereas && returns a boolean value Both the above options are correct Both (A) and (B) are incorrect

Which among following statements is/are TRUE?& is bit-wise and && is a logical operator& returns an integer value whereas && returns a boolean valueBoth the above options...

Bikram

392 views

Bikram asked May 14, 2017

2 votes

1 answer

1310

Test by Bikram | Programming | Test 2 | Question: 2
Which of the following statements is/are true ? #include <stdio.h> int main() { int x=10, y=200%90, i; for( i=1;i++<=10;); if(x==y); printf("x=%dy=%d\n",x,y ); return 0; } printf() is called infinite times program will produce output x=10,y=20; The program will not produce any output The program will produce some error

Which of the following statements is/are true ?#include <stdio.h int main() { int x=10, y=200%90, i; for( i=1;i++<=10;); if(x==y); printf("x=%dy=%d\n",x,y ); return 0; }p...

Bikram

505 views

Bikram asked May 14, 2017

0 votes

1 answer

1311

Regarding EOF in C
I have read that in Linux, user can do CTRL+D and it's leads to equivalent, but I have an question that user has to press CTRL+D or write CTRL+D in program like a character.

I have read that in Linux, user can do CTRL+D and it's leads to equivalent, but I have an question that user has to press CTRL+D or write CTRL+D in program like a charact...

iarnav

307 views

iarnav asked May 14, 2017

0 votes

1 answer

1312

Test by Bikram | Mock GATE | Test 4 | Question: 45
Consider the following code snippet: #include <stdio.h> void s1(int*, int); void s2(int*, int); void (*k[2])(int*, int); int main() { int a = 4; int b = 2; k[0] = s1; k[1] = s2; k[0](&a, b); printf("%d %d ", a, ... void s2(int *k, int q) { int tmp = *k; *k = q; q = tmp; } The output of the above program is : 4242 2222 4444 2424

Consider the following code snippet:#include <stdio.h void s1(int*, int); void s2(int*, int); void (*k )(int*, int); int main() { int a = 4; int b = 2; k[0] = s1; k = s2...

Bikram

413 views

Bikram asked May 14, 2017

5 votes

1 answer

1313

Test by Bikram | Mock GATE | Test 4 | Question: 40
Consider the below program : #include <stdio.h> void fun (int[0][3]); int main(void) { int k[3][3]= {{1,2,3}, {4,5,6},{7,8,9}}; fun(k); printf("%d\n", k[2][1]); return 0; } void fun(int p[][3]) { ++p; p[1][1] = 9; } The output of the above program is : ______.

Consider the below program : #include <stdio.h void fun (int[0][3]); int main(void) { int k[3][3]= {{1,2,3}, {4,5,6},{7,8,9}}; fun(k); printf("%d\n", k ); return 0; } vo...

Bikram

400 views

Bikram asked May 14, 2017

1 votes

1 answer

1314

Test by Bikram | Mock GATE | Test 4 | Question: 18
Consider the below code snippet: #include<stdio.h> int main() { int p[15][20][29] = {0}; p[4][2][3] = 6; --------------- return 0; } Which of the following options will print $6$ when added in the missing part of the above code? printf(" ... **((p+4)+2)+3); printf("%d",*(*((p+4)+2)+3)); printf("%d",*(((p+4)+2)+3));

Consider the below code snippet:#include<stdio.h int main() { int p[15][20][29] = {0}; p[4] [3] = 6; - return 0; }Which of the following options will print $6$ when ad...

Bikram

305 views

Bikram asked May 14, 2017

3 votes

1 answer

1315

Test by Bikram | Mock GATE | Test 4 | Question: 6
Consider the below $C$ code: #include<stdio.h> int main() { char a[] = "gateoverflow"; char *p = a; printf("%s", p+p[3]-p[1]); } The output will be : gate eoverflow overflow Garbage error

Consider the below $C$ code:#include<stdio.h int main() { char a[] = "gateoverflow"; char *p = a; printf("%s", p+p[3]-p ); }The output will be : gate eoverflow overflo...

Bikram

266 views

Bikram asked May 14, 2017

0 votes

1 answer

1316

What happens to global variable(s) when main() is retuned or over?
Folks, as the global or static variables are stored in data section of process and their scope is throughout the program, but once the main() function returns or complete execution or when whole program is executed ... stays or the whole process is deleted including global variables from memory once the program ran to completion?

Folks, as the global or static variables are stored in data section of process and their scope is throughout the program, but once the main() function returns or complete...

iarnav

1.3k views

iarnav asked May 10, 2017

1 votes

1 answer

1317

ISI 2016 PCB C5
What will be the output of the following C program? If you think it will give a runtime error, you need to mention it. In either case, your answer must include proper justifications without which no credit will be given. #include<stdio.h> main() { unsigned char i, j, a[] = {1, 2, 3, 4, 5} ... j, n); while(j-- != 0) a[0] += n; printf("j = %d, a[0] = %d\n", j, a[0]); }

What will be the output of the following C program? If you think it will give a runtime error, you need to mention it. In either case, your answer must include proper jus...

neha.i

458 views

neha.i asked May 9, 2017

2 votes

4 answers

1318

How space will be stored in 1-D array
char * a[] = "red shoes"; How the space in string constant "red shoes" will be stored in 1-D array in memory?

char * a[] = "red shoes";How the space in string constant "red shoes" will be stored in 1-D array in memory?

iarnav

2.5k views

iarnav asked May 8, 2017

5 votes

3 answers

1319

ISRO2017-70
We use malloc and calloc for: Dynamic memory allocation Static memory allocation Both dynamic memory allocation and static memory allocation None of these

We use malloc and calloc for:Dynamic memory allocationStatic memory allocationBoth dynamic memory allocation and static memory allocationNone of these

sh!va

7.2k views

sh!va asked May 7, 2017

8 votes

4 answers

1320

ISRO2017-64
What is the output of the following program? #include<stdio.h> int tmp=20; main() { printf("%d", tmp); func(); printf("%d", tmp); } func() { static int tmp=10; printf("%d", tmp); } 20 10 10 20 10 20 20 20 20 10 10 10

What is the output of the following program?#include<stdio.h int tmp=20; main() { printf("%d", tmp); func(); printf("%d", tmp); } func() { static int tmp=10; printf("%d",...

sh!va

5.5k views

sh!va asked May 7, 2017

tags	tag:apple
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