How to get maximum value in array

//How to get maximum value in array.

#include<stdio.h>
#include<conio.h>

void main()
{
  int arr[5],i,largest_value=0,j;
  clrscr();
  printf("Enter the value of an array:\n");
  for(i=0;i<5;i++)
  {
    scanf("%d",&arr[i]);
  }
 
  for(i=0;i<4;i++)
  {
    if(arr[i]>arr[i+1])
  {
    arr[i+1]=arr[i];
    largest_value=arr[i];
    }
  else
  {
    arr[i+1]=arr[i+1];
    largest_value=arr[i+1];
  }
  }
  printf("\nLargest value:%d",largest_value);
 
  getch();
}

Output:

Enter the value of an array:
23
34
321
345

Largest value:345