how to find the biggest number between 2 in c code example

Example 1: largest of three numbers in c

#include <stdio.h>
int main() {
    double n1, n2, n3;
    printf("Enter three different numbers: ");
    scanf("%lf %lf %lf", &n1, &n2, &n3);

    // if n1 is greater than both n2 and n3, n1 is the largest
    if (n1 >= n2 && n1 >= n3)
        printf("%.2f is the largest number.", n1);

    // if n2 is greater than both n1 and n3, n2 is the largest
    if (n2 >= n1 && n2 >= n3)
        printf("%.2f is the largest number.", n2);

    // if n3 is greater than both n1 and n2, n3 is the largest
    if (n3 >= n1 && n3 >= n2)
        printf("%.2f is the largest number.", n3);

    return 0;
}

Example 2: c program for the largest of two numbers

/*Program for adding two numbers*/
#include <stdio.h>
int main(){
	int a, b;
    printf("Enter the first number: \n"); //Prompts user to enter the first number.
    scanf("%d", &a);//Accepts input and saves it to variable a
    printf("Enter the second number: \n");
    scanf("%d", &b);//Accepts input and saves it to variable a
    if (a > b){
    	printf("%d is greater than %d", a, b);
        }
    else
    	printf("%d is greater than %d", b, a);
}