Finding largest number in an array:

To find largest number in an array first user will enter the length for the array and then the user will input the elements for the array. There is a max variable taken in the program which is assigned 0th index value of the array. Then we will iterate through the array elements comparing whether max value is less or greater than the array elements if it is less then the array value than that array value will be stored in max variable and after iterating through the whole array we will get the largest element from the array.

#include<stdio.h>
void main()
{
int arr[50],i,max,length;
  // inputing the number of elements to be in the array

printf("Enter the no of elements in the array"); 
scanf("%d",&length);        
printf("Enter the elements in the array");
for(i=0;i<length;i++)          // inputing the elements in the array
scanf("%d",&arr[i]);
printf("Given array is\n");
for(i=0;i<length;i++)
    printf("%d \t",arr[i]);

      // initializing max variable with the first value of the array
     max=a[0];  
for(i=1;i<length;i++)
{
    //iterating the array and comparing  the max value with array value
    if(max<arr[i])  
    max=arr[i];
}
printf("\t %d",max);    // Printing the largest number from the array

}