Answer / sumitgaur2010

#include<iostream>
#include<conio.h>
#include<math.h>
using namespace std;
int main()
{
int i,n,num,p=1;
cout<<"enter the number";
cin>>n;
num=pow(2,n)+1;
for(i=2;i<num/2;i++)
{
if(num%i==0)
{
p=0;
break;
}
}
if(p==1)
cout<<"prime";
else if(p==0)
{
cout<<"factors are";
for(i=2;i<num/2;i++)
if(num%i==0)
cout<<i<<",";
}
getch();
}

Answer / ram khilawan

#include<iostream.h>
#include<conio.h>

int main()
{
int i,n,num,p=1;
cout<<"enter the number";
cin>>n;
num=pow(2,n)+1;
for(i=2;i<num/2;i++)
{
if(num%i==0)
{
p=0;
break;
}
}
if(p==1)
cout<<"prime";
else if(p==0)
{
cout<<"factors are";
for(i=2;i<num/2;i++)
if(num%i==0)
cout<<i<<",";
}
getch();
}

Show by induction that 2n > n2, for all n > 4.

2 Answers   Karvy, Qatar University,

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write a program using 2 D that searches a number and display the number of items 12 inputs values input 15,20, 13, 30, 38, 40,16, 18, 20 ,18 ,20 enter no. to search : 20

0 Answers  

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1.program to add any two objects using operator overloading 2.program to add any two objects using constructors 3.program to add any two objects using binary operator 4.program to add any two objects using unary operator

2 Answers   IBM,

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create a stucture student containing field for roll no,class,year and marks.create 10 student annd store them in a file

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Write a &#61521;(n) algorithm that sorts n distinct integers, ranging in size between 1 and kn inclusive, where k is a constant positive integer. (Hint: Use a kn-element array.)

0 Answers  

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How reader and writer problem was implemented and come up with effective solution for reader and writer problem in case we have n readers and 1 writer.

6 Answers   Microsoft, NetApp,

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write a program using virtual function to find the transposing of a square matrix?

0 Answers  

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write a program to calculate the radius for a quadratic equation use modular programming(function abitraction)hint use quadratic function

1 Answers   ICAN, Jomo Kenyatta University,

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what mean void creat_object?in public class in this code class A{ public: int x; A(){ cout << endl<< "Constructor A";} ~A(){ cout << endl<< "Destructor A, x is\t"<< x;} }; void create_object(); void main() { A a; a.x=10; { A c; c.x=20; } create_object(); } void create_object() { A b; b.x=30; }

0 Answers  

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write a program that can locate elements in array.

1 Answers  

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Write a program using one dimensional array that accept five values from the keyboard. Then it should also accept a number to search. This number is to be searched if it among the five input values. If it is found, display the message “Search number is found!” otherwise, display “Search is lost”. Example: Enter 5 numbers: 10 15 20 7 8 Enter number to search: 7 Search number is found!

2 Answers   College School Exams Tests,

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What is the time complexity T(n) of the following program? a) int n, d, i, j; cin >> n; for (d=1; d<=n; d++) for (i=1; i<=d; i++) for (j=1; j<=n; j += n/10) cout << d << " " << i << " " << j << endl; b) void main() { int n, s, t; cin >> n; for (s = 1; s <= n/4; s++) {t = s; while (t >= 1) { cout << s << " " << t << endl; t--; } } } c) void main() { int n, r, s, t; cin >> n; for (r = 2; r <= n; r = r * 2) for (s = 1; s <= n/4; s++) { t = s; while (t >= 1) { cout << s << " " << t << endl; t--; } } }

3 Answers   CTS, IBM, Infosys, Qatar University,

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