McAfee Interview Question for Software Engineer / Developers


Team: Sustainability Engineering
Country: India
Interview Type: Written Test




Comment hidden because of low score. Click to expand.
1
of 1 vote

def getFinalAmount(initialAmount, betResults):
   finalAmount = initialAmount

   # Betting starts at 1 dollar.
   previousBet = 1
   for result in betResults:
      # As required, if we can't cover the last bet, return the balance.
      if finalAmount < previousBet:
         break

      assert result in ('L', 'W')
      if result == 'L':
         # We lost. Deduct from our balance and double the next bet.
         finalAmount -= previousBet
         previousBet *= 2
      elif result == 'W':
         # We won. Add our winnings and reset our bet to 1 dollar.
         finalAmount += previousBet
         previousBet = 1
            
   return finalAmount

# Tests:
assert getFinalAmount(12, 'WWWWWWWW') == 20
assert getFinalAmount(15, 'LLLWLLLL') == 1

- jay March 17, 2013 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 votes

thanks jay for giving the idea to approach this question

- Gaurav1204 March 17, 2013 | Flag
Comment hidden because of low score. Click to expand.
0
of 0 vote

public class BetGame {

static Integer finalAmt;
Integer initaialAmt;
Integer betAmt;
String betResultSequence;

public Integer calculatFinalAmount1(Integer initialAmt, String betResultSequence){
finalAmt = initialAmt;
betAmt=1;

for(int i=0; i < betResultSequence.length(); i++){
if((betResultSequence.charAt(i)) == 'L'){
finalAmt -= betAmt;
betAmt *=2;
}else{
finalAmt += betAmt;
betAmt =1;
}
}

return finalAmt;

}
public static void main(String args[]){

BetGame betGame=new BetGame();

finalAmt = betGame.calculatFinalAmount1(15, "LLLWLLLL");

System.out.println(" The final amount of player is: "+ finalAmt);

}

}

- Gaurav1204 March 17, 2013 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

int function(int initamount,char *result)
{
int changesum =0,nextbid =0,lastbid = 0,i=0;

changesum = initamount;
nextbid = 1;
lastbid = 1;
while(result[i] != 0)
{
printf("%d %d %d \n",changesum,nextbid,lastbid);
if(result[i] == 'w')
{
changesum += lastbid;
nextbid = lastbid = 1;
}
else if(result[i] == 'l')
{
changesum -= lastbid;
nextbid = 2 * lastbid;
lastbid = nextbid;
}
i++;
}
printf("%d %d %d",changesum,nextbid,lastbid);
}

- vipul parashar March 18, 2013 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

public static int getResult(int initial_amount, String x){
		
		char seq[] = x.toCharArray();
		for(int i=0; i<seq.length; i++){
			
			if(seq[i] == 'W' || seq[i] == 'w'){
				final_amount = final_amount+bet_amount;
				bet_amount = 1;
				
			}
			else if(seq[i] =='L' || seq[i] == 'l'){
				final_amount = final_amount-bet_amount;
				bet_amount = bet_amount*2;				
			}					
			else{
				return -1;
			}
		}				
		return final_amount;

}

- Anonymous May 15, 2013 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

// c# code
        static int getFinalAmount(int initialAmount, string betResults)
        {
            int totalBets = betResults.Length;
            int currentBetAmount = 1;
            for (int currentBetNumber = 1; currentBetNumber <= totalBets; currentBetNumber++)
            {
                if (betResults[currentBetNumber - 1].ToString() == "L")
                {
                    initialAmount -= currentBetAmount;
                    currentBetAmount *= 2;
                }
                else
                {
                    initialAmount += currentBetAmount;
                    currentBetAmount = 1;
                }
                if (currentBetAmount > initialAmount)
                {
                    return initialAmount;
                }
            }
            return initialAmount;
        }

- Anant Anand Gupta June 29, 2013 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

#include <stdio.h>

int bet(int, char*, int);

int main(void) {
	// your code goes here
	printf ("%d", bet(20, "wllw", 4));
	return 0;
}

int bet(int v, char *r, int l){
	if (v <= 0 || l == 0){
		return v;
	}
	
	int b = 1;
	int vTemp = v;
	int i = 0;
	for (i = 0; i < l; i++){
		vTemp -= b;
		if (vTemp < 0){
			return vTemp + b;
		}
		if ( r[i] == 'W' || r[i] == 'w' ){
			vTemp += 2*b;
			b = 1;
		} else if (r[i] == 'L' || r[i] == 'l'){
			b *= 2;
		} else if (r[i] == '\0'){
			break;
		}
	}
	return vTemp;
}

- Akshay Jain December 27, 2014 | Flag Reply


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