1.Program to find sum of two numbers using function sum(int,int) that returns sum value
#include<stdio.h> #include<conio.h> // Linux user - Remove this int sum( int a, int b ) { return a+b; } int main() { // Declaring variable x, y to take the input of two numbers int x, y; // Inputting value printf("Enter the value of x:"); scanf("%d", &x); printf("Enter the value of y:"); scanf("%d", &y); // Displaying value by calling sum function printf("Sum of %d and %d : %d", x, y, sum(x, y)); getch(); // Linux user - Remove this return 0; }
2. Program to print the area of a rectangle
#include<stdio.h> #include<conio.h> // Linux user - Remove this void area() { // Declaring variable l=length, b = breadth int l,b; // Inputting length and breadth printf("Enter length of rectangle : "); scanf("%d",&l); printf("Enter breadth of rectangle : "); scanf("%d",&b); // Calculating and printing area printf("Area of rectangle %d * %d = %d ", l, b, l*b); } int main() { area();
getch(); // Linux user - Remove this return 0; }
3. Program to find the factorial of two numbers and add them and print the result
#include<stdio.h> #include<conio.h> // Linux user - Remove this // Function prototype int factorial(int); int main() { // Decalring variable n1, n2 to input two number int n1, n2; // Declaring variable f1 and f2 to store the factoial of n1, n2 respectively int f1, f2; // Declaring variable sum to store the sum of f1 and f2 int sum=0; // Inputting two numbers printf("Enter first number : "); scanf("%d", &n1); printf("Enter second number : "); scanf("%d", &n2); // Calling function factorial f1 = factorial(n1); f2 = factorial(n2); // Calculating sum and displaying result sum = f1 + f2; printf("Factorial of first number %d = %d \n", n1, f1); printf("Factorial of second number %d = %d \n", n2, f2); printf("Sum of factorial of two numbers %d and %d = %d ",n1, n2, sum); getch(); // Linux user - Remove this return 0; } int factorial(int n) { // Declaring variable "i" to iterate loop int i; // Declaring variabl fact to store factorial int fact=1; // Calculating factorial for(i=1;i<=n;i++) { fact = fact * i; } // Returning factorial return (fact); }
4. Program to implement functions that returns HCF OR GCD and LCM of two numbers
#include<stdio.h> #include<conio.h> // Linux user - Remove this int calculatehcf(int x, int y) { // Declaring varibale "i' to iterate loop int i; // Declaring variable hcf to store calculated hcf int hcf=1; for(i=1; i<=x;i++) { if(x%i==0 && y%i==0) { hcf=i; } } // Returnig hcf return hcf; } int calculatelcm(int x, int y, int h) // h is passed value of hcf { // Declaring variable lcm to store calculated lcm int lcm=1; // lcm is calculated by formula : hcf * lcm =1 lcm = (x*y)/h; // Returning lcm return lcm; } int main() { // Declaring variable "a" and "b" to input two numbers int a, b; /* Declaring variable hcf=to hold hcf returned to it, lcm=to hold lcm returned to it */ int hcf, lcm; // Inputting two numbers printf("Enter first number : "); scanf("%d", &a); printf("Enter first number : "); scanf("%d", &b); // Calling function calculatehcf hcf=calculatehcf(a, b); // Calling function calculatelcm lcm=calculatelcm(a, b, hcf); // Printing hcf and lcm printf("hcf = %d ",hcf); printf("\nlcm = %d ",lcm); getch(); // Linux user - Remove this return 0; }
5. Implement a function that takes two values of integer type and interchange them
// 1. without using Third variable. You may use arithmetic operators // 2. With the use of third variable. You should not use arithmetic operator #include<stdio.h> #include<conio.h> // Linux user - Remove this void swap_without_third_variable(int a, int b) { // performing swapping a=a+b; b=a-b; a=a-b; // Printing interchange value printf("\nInterchange value without use of third variable : a=%d, b=%d", a, b); } void swap_with_third_variable(int a, int b) { // Declaring varibale swap to help in interchanging value int swap; // Performing swapping swap=a; a=b; b=swap; // Printing interchange value printf("\nInterchange value without use of third variable : a=%d, b=%d", a, b); } int main() { // Declaring variable a, b to input two numbers int a, b; // Inputting number printf("Enter value of a : "); scanf("%d",&a); printf("Enter value of b : "); scanf("%d",&b); // Printing original value printf("Orginal value a = %d, b = %d ",a, b); // Calling functions swap_without_third_variable(a, b); swap_with_third_variable(a, b); getch(); // Linux user - Remove this return 0; }