C++ Variables: Rules to create: Integer variable: #include <iostream>using namespace std; int main() { int num = 10; // integer variable cout << “The value of num is: ” << num << endl; return 0;} Floating point variable: #include <iostream>using namespace std; int main() { float num = 3.14; // floating point variable cout << “The value …
Introduction to C++: C v/s C++:
Count digits in the given number: n = int(input(“enter num : “))count=0while(n!=0): n=n//10 count=count+1print(“Digits count : “, count)
Menu Driven Program to perform all arithmetic operations: while(True): print(“1. Add”) print(“2. Subtract”) print(“3. Multiply”) print(“4. Divide”) print(“5. Quit”) ch = int(input(“enter choice :”)) if(ch==1): print(“Enter 2 numbers:”) a=int(input()) b=int(input()) print(“Res : “, a+b) elif(ch==2): print(“Enter 2 numbers:”) a=int(input()) b=int(input()) print(“Res : “, a-b) elif(ch==3): print(“Enter 2 numbers:”) a=int(input()) b=int(input()) print(“Res : “, a*b) …
while loop: Syntax: while(condition): statements; Check the even numbers until user quits: while(True): n = int(input(“enter num : “)) if(n%2==0): print(n,”is even”) else: print(n,”is odd”) print(“Do you check another num(y/n) :”) ch = input() if(ch==’n’): break Display Multiplication tables until user quits: while(True): n = int(input(“Enter table num : “)) for i in range(1,11): print(n,’*’,i,’=’,n*i) …
Multiplication tables in the given range:. for n in range(5, 11): for i in range(1,11): print(n,’*’,i,’=’,n*i) Factorials in the Given range: for n in range(1,8): fact=1 for i in range(1,n+1): fact=fact*i print(“factorial of”,n,”is”,fact) Prime numbers in given range: for n in range(1,51): factors=0 for i in range(1,n+1): if(n%i==0): factors=factors+1 if(factors==2): print(n,”is prime”) Perfect numbers in …
Sum of First N numbers: n = int(input(“Enter a positive integer: “))sum = 0for i in range(1, n+1): sum += iprint(“The sum of the first”, n, “natural numbers is:”, sum) Find factorial for given number: n = int(input(“Enter a positive integer: “))factorial = 1for i in range(1, n+1): factorial *= iprint(“The factorial of”, n, “is:”, …
for loop: range(): Print the numbers from 0 to 9:for i in range(10): print(i) Print the numbers from 3 to 8:for i in range(3,9): print(i) Print the numbers from 10 to 1:for i in range(10, 0, -1): print(i) Print every third number from 0 to 20:for i in range(0, 21, 3): print(i) Print the even numbers from 0 to …
Loop: A Block of instructions execute repeatedly as long the condition is valid. Note: Block executes only once whereas Loop executes until condition become False Python Supports 3 types of Loops: For Loop: We use for loop only when we know the number of repetitions. For example, While loop: We use while loop when we …
Shift operators: >>> x=8>>> x>>22>>> x<<232 Right shift: n/2^s à 8/2^2 à 8/4 à 2 Left shift : n*2^s à 8*2^2 à 8*4 à 32