HR & Technical Interview Questions With Answers.

This is a sample C++ Program to calculate final velocity when time, acceleration and initial velocity are given. #include <iostream.h> #include <conio.h> void main() {     clrscr();     int v,u,a,t;     cout << "Enter The Velocity, Acceleration, Time: " << endl;     cin>>u>>a>>t;     v=u+a*t;     cout << "The Final Velocity Is " << v << "." << endl;     getch(); } OUTPUT: Enter The Velocity, Acceleration, Time: 0 5 2 The Final Velocity Is 10. ALSO CHECK THE FOLLOWING C++ PROGRAMS: --  C++ Program To Accept & Print The User’s Age. --  C++ Program To Print A String. --  C++ Program To Accept & Display A Number. --  C++ Program To Print Sum Of Two Values. --  C++ Program To Print Square Of A Numeric Value. --  C++ Program To Accept & Print Marks & Find Total. --  C++ Program To Accept Three Numbers & Print Percentage Marks. --  C++ Program T

This is a sample C++ program to find the area of a triangle using Heron's Formula. #include <iostream.h> #include <conio.h> #include <math.h> void main() {     double s1, s2, s3, ar, s;     cout<< " Enter 3 Sides : ";     cin >> s1 >> s2 >> s3;     s = (s1+s2+s3)/2;     ar = sqrt( s * ( s - s1) * (s - s2) * (s - s3));     cout << "\n The Area Of The Triangle = " << ar;     getch(); } OUTPUT: Enter 3 sides : 2 2 2 The Area of the triangle = 1.732051 ALSO CHECK THE FOLLOWING C++ PROGRAMS: --  C++ Program To Accept & Print The User’s Age. --  C++ Program To Print A String. --  C++ Program To Accept & Display A Number. --  C++ Program To Print Sum Of Two Values. --  C++ Program To Print Square Of A Numeric Value. --  C++ Program To Accept & Print Marks & Find Total. --  C++ Program To Accept Three Numbers & Print Percentage Marks. --  C++ Program To Check

This is a sample C++ program to accept two numbers & find it's sum and average. #include <iostream.h> #include <conio.h> void main() {     clrscr();     int x, y, sum;     float average;     cout << " Enter 2 Integers : " << endl;     cin>>x>>y;     sum=x+y;     average=sum/2;     cout << " The Sum Of " << x << " & " << y << " Is " << sum << "." << endl;     cout << " The Average Of " << x << " & " << y << " Is " <<  average << "." << endl;     getch(); } OUTPUT: Enter 2 Integers : 20 40 The Sum Of 20 & 40 Is 60. The Average Of 20 & 40 Is 30. ALSO CHECK THE FOLLOWING C++ PROGRAMS: --  C++ Program To Accept & Print The User’s Age. --  C++ Program To Print A String. --  C++ Program To Accept &

This program accepts a number from the user and finds the sum of all the numbers up to the number entered by the user. SAMPLE PROGRAM: #include <iostream.h> #include <conio.h> int recursion(int num); int main() { int num = 0; int sumnum; cout << "Enter any integer greater than 0: " << endl; cin >> num; sumnum = recursion(num); cout << "The sum is: " << sumnum << endl; cin.ignore(); cin.get(); return 0; } int recursion(int num) { int sum = 0; if(num == 1) return 1; else   {     sum = recursion(num - 1) + num;     return sum;   } } OUTPUT: Enter any integer greater than 0: 6 The sum is: 21 ALSO CHECK THE FOLLOWING C++ PROGRAMS: --  C++ Program To Accept & Print The User’s Age. --  C++ Program To Print A String. --  C++ Program To Accept & Display A Number. --  C++ Program To Print Sum Of Two Values. --  C++ Program To Print Square Of A Numeric Value. --  C++

This program accepts two numbers from the user and finds out the greatest common divisor of the two numbers. SAMPLE PROGRAM: #include <iostream.h> #include <conio.h> int GCD(int a, int b) { int remainder; while( b != 0 )   {     remainder = a % b;     a = b;     b = remainder;   } return a; } int main() { int x, y; cout << "To find the greatest common divisor, enter the values specified below \n"; cout << "Value 1: "; cin >> x; cout << "Value 2: "; cin >> y; cout << "\nThe Greatest Common Divisor of " << x << " and " << y << " is " << GCD(x, y) << endl; return 0; } OUTPUT: To find the greatest common divisor, enter the values specified below Value 1: 20 Value 2: 10 The Greatest Common Divisor of 20 and 10 is 10 ALSO CHECK THE FOLLOWING C++ PROGRAMS: --  C++ Program To Accept &

This program helps to find out the square root of the number entered by the user. SAMPLE PROGRAM: #include <iostream.h> #include <conio.h> #include <math.h> int main() { clrscr(); int x; cout << "Enter a number "; cin >> x; double y = sqrt(x); cout << "The square root of " << x << " is " << y << endl; x++; return 0; } OUTPUT: Enter a number 4 The square root of 4 is 2 ALSO CHECK THE FOLLOWING C++ PROGRAMS: --  C++ Program To Accept & Print The User’s Age. --  C++ Program To Print A String. --  C++ Program To Accept & Display A Number. --  C++ Program To Print Sum Of Two Values. --  C++ Program To Print Square Of A Numeric Value. --  C++ Program To Accept & Print Marks & Find Total. --  C++ Program To Accept Three Numbers & Print Percentage Marks. --  C++ Program To Check Whether A Number Is Greater Than 100 Or Not. --  C++ Program

This program helps user to find the area of a rectangle. All the user has to do is enter the length and the breadth of the rectangle. SAMPLE PROGRAM: #include <iostream.h> #include <conio.h> int main() { float length; float width; float area; cout << "Enter length of rectangle: "; cin >> length; cout << "Enter width: "; cin >> width; area = length * width; cout << "\nArea of rectangle is: " << area << endl; return 0; } OUTPUT: Enter length of rectangle: 4 Enter width: 3 Area of rectangle is: 12 ALSO CHECK THE FOLLOWING C++ PROGRAMS: --  C++ Program To Accept & Print The User’s Age. --  C++ Program To Print A String. --  C++ Program To Accept & Display A Number. --  C++ Program To Print Sum Of Two Values. --  C++ Program To Print Square Of A Numeric Value. --  C++ Program To Accept & Print Marks & Find Total. --  C++ Program To Accept Th

This program helps to identify whether the number entered by the user is a prime number or not. SAMPLE PROGRAM: #include <iostream.h> #include <conio.h> void main() { clrscr(); int i, flag = 0, n; cout << "Enter the number: "; cin >>n; for(i = 1; i <= n / 2; i++)   {     if(n % i == 0)     flag = 1;     break;   } if(flag == 1) cout << "\n Prime Number. "; else cout << "\n Not A Prime Number. "; } OUTPUT: Enter the number: 7 Prime Number ALSO CHECK THE FOLLOWING C++ PROGRAMS: --  C++ Program To Accept & Print The User’s Age. --  C++ Program To Print A String. --  C++ Program To Accept & Display A Number. --  C++ Program To Print Sum Of Two Values. --  C++ Program To Print Square Of A Numeric Value. --  C++ Program To Accept & Print Marks & Find Total. --  C++ Program To Accept Three Numbers & Print Percentage Marks. --  C++ Program To Check Whether A Num

This program accepts three marks from the user and then the percentage value is printed on the screen. SAMPLE PROGRAM: #include <iostream.h> #include <conio.h> #include <math.h> int main() { int x, logx; cout << "Enter an integer: "; cin >> x; logx = log(x); if ( (x < 10) && (logx < 10) ) cout << "x and log(x) are less than 10." << endl; else cout << "x and log(x) are not less than 10." << endl; return 0; } OUTPUT: Enter an integer: 2 x and log(x) are less than 10. ALSO CHECK THE FOLLOWING C++ PROGRAMS: --  C++ Program To Accept & Print The User’s Age. --  C++ Program To Print A String. --  C++ Program To Accept & Display A Number. --  C++ Program To Print Sum Of Two Values. --  C++ Program To Print Square Of A Numeric Value. --  C++ Program To Accept & Print Marks & Find Total. --  C++ Program To Accept Three Numbers & Pr

This program accepts a number from the user and checks whether the number is greater than 100 or not. SAMPLE PROGRAM: #include <iostream.h> #include <conio.h> int main() { int x; cout << "Enter an integer: "; cin >> x; if (x < 100) cout << "X is less than 100" << endl; else if (x > 100) cout << "X is greater than 100" << endl; else if (x == 100) cout << "X is equal to 100" << endl; return 0; } OUTPUT: Enter an integer: 54 X is less than 100 ALSO CHECK THE FOLLOWING C++ PROGRAMS: --  C++ Program To Accept & Print The User’s Age. --  C++ Program To Print A String. --  C++ Program To Accept & Display A Number. --  C++ Program To Print Sum Of Two Values. --  C++ Program To Print Square Of A Numeric Value. --  C++ Program To Accept & Print Marks & Find Total. --  C++ Program To Accept Three Numbers & Print Percentage Ma

This program accepts three marks from the user and then the percentage value is printed on the screen. SAMPLE PROGRAM: #include <iostream.h> #include <conio.h> int main() { clrscr(); float sub1, sub2, sub3, marks, perc; cout<<"Enter marks obtained in three subjects: "; cin>> sub1 >> sub2 >> sub3; marks = sub1 + sub2 + sub3; perc = (marks / 300) * 100; cout<<'\n'<<"The percentage marks are: "<<perc <<"%"; return 0; } OUTPUT: Enter marks obtained in three subjects: 90 90 90 The percentage marks are: 90% ALSO CHECK THE FOLLOWING C++ PROGRAMS: --  C++ Program To Accept & Print The User’s Age. --  C++ Program To Print A String. --  C++ Program To Accept & Display A Number. --  C++ Program To Print Sum Of Two Values. --  C++ Program To Print Square Of A Numeric Value. --  C++ Program To Accept & Print Marks & Find Total. --  C++ Pro

This program accept marks for different subjects and then displays the marks and then the total in the screen. SAMPLE PROGRAM: #include <iostream.h> #include <conio.h> int main() { clrscr(); float sub1, sub2, sub3, total; cout<<"Enter marks obtained in three subjects: "; cingt;gt; sub1 gt;gt; sub2 gt;gt; sub3; total = sub1 + sub2 + sub3; cout<<"The marks obtained are: " <<'\n'; cout<<sub1<<'\n'; cout<<sub2<<'\n'; cout<<sub3<<'\n'; cout<<" Total marks = " << total; return 0; } OUTPUT: Enter marks obtained in three subjects: 90 92 90 The marks obtained are: 90 92 90 Total marks = 272 ALSO CHECK THE FOLLOWING C++ PROGRAMS: --  C++ Program To Accept & Print The User’s Age. --  C++ Program To Print A String. --  C++ Program To Accept & Display A Number. --  C++ Program To Print Sum Of

This program allows the user to enter a numeric value and the output will be the square of the value. SAMPLE PROGRAM: #include <iostream.h> #include <conio.h> int main() { clrscr(); int var, sqrs; cout << "Enter variable: "; cin >> var; sqrs = var * var; cout << '\n'<< "The square is: "<<sqrs; return 0; } OUTPUT: Enter variable: 5 The square is: 25 ALSO CHECK THE FOLLOWING C++ PROGRAMS: --  C++ Program To Accept & Print The User’s Age. --  C++ Program To Print A String. --  C++ Program To Accept & Display A Number. --  C++ Program To Print Sum Of Two Values. --  C++ Program To Print Square Of A Numeric Value. --  C++ Program To Accept & Print Marks & Find Total. --  C++ Program To Accept Three Numbers & Print Percentage Marks. --  C++ Program To Check Whether A Number Is Greater Than 100 Or Not. --  C++ Program To Check Whether A Number & It's Lo

This program allows user to enter two values and then the sum of the two values will be printed on the screen. SAMPLE PROGRAM: #include <iostream.h> #include <conio.h> int main() { clrscr(); int value1, value2, sum; cout<<"Enter first value: "; cin>>value1; cout<<"Enter second value: "; cin>>value2; sum = value1 + value2; cout<<"The sum of given values is : "; cout<< sum; return 0; } OUTPUT: Enter first value: 6 Enter second value: 7 The sum of given values is : 13 ALSO CHECK THE FOLLOWING C++ PROGRAMS: --  C++ Program To Print Square Of A Numeric Value. --  C++ Program To Accept & Print Marks & Find Total. --  C++ Program To Accept Three Numbers & Print Percentage Marks. --  C++ Program To Check Whether A Number Is Greater Than 100 Or Not. --  C++ Program To Check Whether A Number & It's Log Value Are Greater Than 10 Or Not.  --  C++ Prog

This program accepts a number from the user and displays it on the screen. SAMPLE PROGRAM: #include <iostream.h> #include <conio.h> int main() { int n; cout << "Please enter a number: "; cin >> n; cout << "The number which you entered is " << n << endl; getch(); return 0; } OUTPUT: Please enter a number: 3 The number which you entered is 3 ALSO CHECK THE FOLLOWING C++ PROGRAMS: --  C++ Program To Print Sum Of Two Values. --  C++ Program To Print Square Of A Numeric Value. --  C++ Program To Accept & Print Marks & Find Total. --  C++ Program To Accept Three Numbers & Print Percentage Marks. --  C++ Program To Check Whether A Number Is Greater Than 100 Or Not. --  C++ Program To Check Whether A Number & It's Log Value Are Greater Than 10 Or Not.  --  C++ Program To Check Whether A Number Is Prime Or Not. --  C++ Program To Calculate The Area Of A Rectangle. --

This program displays/outputs any string on screen. SAMPLE PROGRAM: #include <iostream.h> #include <conio.h> int main() { clrscr(); cout <<"***Welcome to C++ Programming!***"; return 0; } OUTPUT: ***Welcome to C++ Programming!*** ALSO CHECK THE FOLLOWING C++ PROGRAMS: --  C++ Program To Accept & Display A Number. --  C++ Program To Print Sum Of Two Values. --  C++ Program To Print Square Of A Numeric Value. --  C++ Program To Accept & Print Marks & Find Total. --  C++ Program To Accept Three Numbers & Print Percentage Marks. --  C++ Program To Check Whether A Number Is Greater Than 100 Or Not. --  C++ Program To Check Whether A Number & It's Log Value Are Greater Than 10 Or Not.  --  C++ Program To Check Whether A Number Is Prime Or Not. --  C++ Program To Calculate The Area Of A Rectangle. --  C++ Program To Find The Square Root Of A Number. --  C++ Program To Calculate The Greatest Common D

This program lets users to enter their age and prints it on the screen. SAMPLE PROGRAM: #include <iostream.h> int main() { int age; cout << "Please enter your age and press return:"; cin >> age; cout << "You are " << age << " years old." << endl; return 0; } OUTPUT: Please enter your age and press return: 40 You are 40 years old. ALSO CHECK THE FOLLOWING C++ PROGRAMS: --  C++ Program To Print A String. --  C++ Program To Accept & Display A Number. --  C++ Program To Print Sum Of Two Values. --  C++ Program To Print Square Of A Numeric Value. --  C++ Program To Accept & Print Marks & Find Total. --  C++ Program To Accept Three Numbers & Print Percentage Marks. --  C++ Program To Check Whether A Number Is Greater Than 100 Or Not. --  C++ Program To Check Whether A Number & It's Log Value Are Greater Than 10 Or Not.  --  C++ Program To Check Whether

The following C++ program displays any message or statement that is passed in the program. SAMPLE PROGRAM 1: # include <iostream.h> int main() { cout << "Hello C++"; return 0; } OUTPUT: Hello C++ SAMPLE PROGRAM 2: # include <iostream.h> int main() { cout << "Welcome To C++ Programming World."; return 0; } OUTPUT: Welcome To C++ Programming World. ALSO CHECK THE FOLLOWING C++ PROGRAMS: --  C++ Program To Accept & Print The User’s Age. --  C++ Program To Print A String. --  C++ Program To Accept & Display A Number. --  C++ Program To Print Sum Of Two Values. --  C++ Program To Print Square Of A Numeric Value. --  C++ Program To Accept & Print Marks & Find Total. --  C++ Program To Accept Three Numbers & Print Percentage Marks. --  C++ Program To Check Whether A Number Is Greater Than 100 Or Not. --  C++ Program To Check Whether A Number & It's Log Value Are Great