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Finding largest in an integer array (C++)


Finding largest in an integer array
findLargest() finds the largest in the integer array and returns the largest value. It takes 2 parameter:
arr is the array.
len is the length of the array.

Code

#include "stdafx.h"
#include "iostream"
#include "conio.h"
#include "iomanip"
#include "math.h"

using namespace std;

int findLargest(int arr[],int len)
{
 int key=arr[0];
 
       for(int i=0;i<len;i++)
              if(arr[i]>key)
                     key=arr[i];
return key;
}

int main()
{
       const int size1=10;
       int arr1[size1]={10,20,30,40,50,60,60,70,80,90};
       cout<<findLargest ( arr1 , size1 );cout<<endl;

       const int size2=10;
       int arr2[size2]={85,20,30,40,50,60,60,70,75,80};
       cout<<findLargest ( arr2 , size2 );cout<<endl;

       const int size3=10;
       int arr3[size3]={1,2,3,4,5,6,7,8,9,0};
       cout<<findLargest ( arr3 , size3 );cout<<endl;

       const int size4=10;
       int arr4[size4]={10,20,30,40,50,60,70,80,90,100};
       cout<<findLargest ( arr4 , size4 );cout<<endl;

       const int size5=10;
       int arr5[size5]={5,10,15,20,25,30,35,40,45,50};
       cout<<findLargest ( arr5 , size5 );cout<<endl;

       _getche();
       return 0;
}

Output
90
85
9
100
50

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