public static int policeOperation(int h, List<int> criminals)
    {
        return OldMethod(h, criminals);
     
        
        
    }
    
    private static int OldMethod(int h, List<int> criminals){
        int creminalNumber = criminals.Count;
        int officersNumber = 0;
        int tmpFuelPayment = 0;
        int fuelPayment = 0;
        
        int previousLocation = 0;
        int currentLocation = 0;
        
        for(int i = 0; i < creminalNumber; i++){
            //First Location
            if( i == 0){
                previousLocation = criminals[i];
                officersNumber++;
                continue;
            }
            
            //check which is more suitable, one more officer or pay for fuel
            currentLocation = criminals[i];
            tmpFuelPayment = fuelNeededToMove(previousLocation, currentLocation);
            
            if(tmpFuelPayment < h){
                // if it is last criminal
                if(i == creminalNumber-1){
                    fuelPayment += tmpFuelPayment;
                }
            }
            else{
                tmpFuelPayment = fuelNeededToMove(previousLocation, criminals[i-1]);
                fuelPayment += tmpFuelPayment;
                tmpFuelPayment = 0;
                
                previousLocation = criminals[i];
                officersNumber++;
            }
        }
        
        int salaries = officersNumber * h;
        
        return salaries + fuelPayment;
    }
    
    
    private static int fuelNeededToMove(int startPos, int endPos){
        return Convert.ToInt32(Math.Pow(endPos - startPos, 2));
    }