2010 Final IPE_UNIXC_-1151b question 4

#include <iostream>
using namespace std;
float findmin(float array[],int size);
int main()
{
      int citycodes[5];
      float avgtemp[5];
      float mk1,mk2;
      for(int i=0;i<5;i++)
      {
      cout<<"Enter city code  : ";
      cin>>citycodes[i];
      cout<<"Enter tempreature reading 1  = " ;
      cin>>mk1;
      cout<<"Enter tempreature reading 2  = " ;
        cin>>mk2;
      avgtemp[i]=(mk1+mk2)/2.0;
      }

      float min=findmin(avgtemp,5);
      cout<<"Minimum average tempreature is  =  "<<min<<endl;
      for(int a=0;a<5;a++)
      {
      if(min==avgtemp[a])
      cout<<"Minimum tempreature city code is =  "<<citycodes[a]<<endl;
     
      }


      return 0;
}
float findmin(float array[],int size)
{    
      float min=10000;
      for(int c=0;c<size;c++)
      {
      if(array[c]<=min)
      {
      min=array[c];
     
      }
      else
      {
      min=min;
      }
      }
      return min;


}