#include <iostream>
 
using namespace std;
 
int main()
{
  int vals[] = {234, 3, 4, 45, 4};
 
  int lowest = 10000; //some large value
 
  for ( int i = 0 ; i < 5; i++ )
  {
    if ( vals[i] < lowest )
    {
      lowest = vals[i];
    }
  }
 
  cout << lowest << endl;
 
  cin.get();
}

...
int main()
{
......
for ( int i = 0 ; i < 5; i++ )
{
   int noAccidents = getNumAccidents(area);
   int areanumber = findlowest(noAccidents );
}
switch(areanumber )
{
case 1:
       cout<<"North area of town has the lowest no of accidents: "<<noAccidents ;
case 2:
       cout<<"Southarea of town has the lowest no of accidents: "<<noAccidents ;
.....
default:
..}
///functions implementations:
......
int getNumAccidents(const string& regionName)
{
//your implementation
}
 
int findLowest(const int& numberOfAccidents )
{
  int temp = 5000; //a very big number of accidents :D
  int saveIndex=0;
  if (numberOfAccidents < temp);
          {
          temp=numberOfAccidents ;
          saveIndex=i;
          }
 return saveIndex;
}
.....
return 0;
}