GeeksforGeeks

There is an array of N elements in which only one element is repeated thrice and all other elements repeated twice or did not repeat. Can the eleme...

Consider this program.

#include <iostream>
using namespace std;

class Base {
public:
virtual void foo() { co...

#include<stdio.h>
main(){
int a[]={0,1,2,3,4,5,6,7,8,9,10,11,12,13},b=10,i=0;
b=a[i++ + a[++i]];
b=a[++i+a[++i...

The output of the program?

void main()
{
    char  str[5] = “abc”;
    printf (“%s”, &0[str]);
    getchar();
    return 0;
}...

How many distinct paths are there for the robot to reach the point starting from the initial position (0,0)?
(A)20 C 10 
(B) 20 C 2

#include<iostream>
using namespace std;

class base {
    public:
       int i;
       void show()
       { cout<<" i = "<<i; ...

How can we traverse through all the files in a folder and the subfolders. What system calls should be used?

Why certain operators can not be overloaded?

When do we have to use this pointer explicitly in our programs?

Following program prints 8 on Dev CPP compiler.

#include<iostream>
using namespace std;

class base {  int i; };

class d1: public ...

Is there any functional dfference between getch() and getchar()?

Following code prints 1 to 100 without using loop and without using recursion!!. Could someone please explain how does this code work.

...

pls suggest an 0(n) algorithm..

#include<stdio.h>
int main()
{
  int x[10];
  int (*p)[10];
  p = x;
  getchar();
  return 0;
}

if(TRUE) {
printf(" Inside IF\n");
} else {
printf("Inside ELSE\n");
}

Is it possible to print both statements??

void f(int y)
{
      struct s *ptr;
      ptr = malloc (sizeof (struct)+99*sizeof(int));
}

struct s
{
    int i;
     float p;
};

wh...

int data; // Initialize data during run time
if ( data == -data && data!=0)
       printf ("Miracle!!");

Will miracle ever pri...

How can we find the 2nd largest element in an unsorted array without ever using sorting algorithms. The array also contains repeated elements.

Pros and cons of both?

can you use tow 3's to make 20 using any mathematical operators

#include<stdio.h>
int main(void)
{
 printf("%.*s", 0, "geeksforgeeks");
 getchar();
 return 0;
}

Design and code in C++ to justify a line of text string: (1) left, (2)
right and (3) full justified.

#include<stdio.h>
int main(void)
{
 int i;
 for(i = 0; i < 5; i++)
    printf("\n%*c", i, '*');
 getchar();
 return 0;
}

#include<iostream>
int f() {
    return 2;
}

class temp
{
  public:
  int operator()() {
    return 1;
  }
};

int main()
{
  temp f;
  s...

Perform the in-place sort on a deck of cards with 5 different colors. Deck having n number of cards and we don't know the exact number of cards of ...

Nine boys and three girls had some initial money. They agreed to divide equally their pocket money. Every boy gave an equal sum to every girl, an...

i need remove duplicates with using a hash table ...
i have
struct Node{
int data;
Node *next};

struct Hash{
N...

#include<stdio.h>
int main(void)
{
      char *p = NULL;
      {
           char c='A';
           p = &c;
      }
      putchar(*p);
    ...

You can only use the following ADT functions on Stack:
IsEmpty
IsFull
Push
Pop
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what is pure abstract class in Java? why we use interface if u have pure abstract class?