Greatest of three numbers

#include <stdio.h>
int main(void){
int a,b,c;
printf("Enter the  numbers ");
scanf("%d %d %d",&a,&b,&c);  // Enter  numbers

if(a>b){
 if(a > c )
 { printf(" Highest number is a = %d",a);}
 else
 { printf(" Highest number is c = %d",c);}
}
else
{
 if(b > c )
 { printf( "highest number is b = %d",b);}
 else
 {printf(" highest number is c= %d",c);}
}
	return 0;
}

Solution using AND ( && ) logical conditions

#include <stdio.h>
int main(void){
int a,b,c;
	printf("Enter the  number ");
scanf("%d %d %d",&a,&b,&c);  // Enter  numbers
if(a>b && a>c){
  printf("Greatest number is a: %d",a);
}else if(b>c && b>a){
  printf("Greatest number is b: %d",b);
}else if (c>a && c>b){
printf("Greatest number is C: %d",c);
}
return 0;
}

Example 2: Finding the Highest Number in an Array of Floating Point Numbers

Here’s an example to find the highest number in an array of floating-point numbers:

#include <stdio.h>

int main() {
    float arr[] = {1.2, 3.5, 5.7, 2.8, 4.6};
    int n = sizeof(arr) / sizeof(arr[0]);
    float max = arr[0];

    for (int i = 1; i < n; i++) {
        if (arr[i] > max) {
            max = arr[i];
        }
    }
    printf("The highest number is: %.2f\n", max);
    return 0;
}

Example 3: Finding the Highest Number Using a Function

Encapsulate the logic to find the highest number in a function for reusability:

#include <stdio.h>
float findMax(float arr[], int n) {
    float max = arr[0];
    for (int i = 1; i < n; i++) {
        if (arr[i] > max) {
            max = arr[i];
        }
    }
    return max;
}

int main() {
    float arr[] = {3.1, 4.5, 2.9, 6.7, 5.5};
    int n = sizeof(arr) / sizeof(arr[0]);
    printf("The highest number is: %.2f\n", findMax(arr, n));
    return 0;
}

Example 4: Highest Number in an Array Entered by the User

Allow the user to input the array and find the maximum value:

#include <stdio.h>

int main() {
    int n;
    printf("Enter the number of elements: ");
    scanf("%d", &n);

    int arr[n];
    for (int i = 0; i < n; i++) {
        printf("Enter number %d: ", i + 1);
        scanf("%d", &arr[i]);
    }

    int max = arr[0];
    for (int i = 1; i < n; i++) {
        if (arr[i] > max) {
            max = arr[i];
        }
    }

    printf("The highest number is: %d\n", max);
    return 0;
}