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Alphablend · 01-25-2010, 10:56 AM

Okay this is one interesting task which I got on my studies, for practice, few weeks before my second Colloqua exam. I find it very interesting so I will share it. I will put few comments in some places for better understanding... I hope. Smile

Code:

no_candidates=int(raw_input("Enter the number of candidates: "))

#Make an empty list of candidates, then enter the candidates one by one and 

#add them to list

candidates=[]

for i in range(no_candidates):

    name=raw_input("Enter name of candidate %d: "%(i+1))

    candidates.append(name)

for i,name in enumerate(candidates):

    print '%d. %s'%(i+1,name)

#For every canidate we will make a "vote counter". In the beginning all

#counters are 0. We load votes one by one, and check if the vote is legible.

#We check if the entered number is -1 because that number ends the voting.

#Then we increase the appropriate counter.

votes=[0]*no_candidates

while True:

    vote=int(raw_input("Enter vote(-1 to end voting): "))

    if vote!=-1 and not (1<=vote<=no_candidates):

        print "Invalid vote!"

        continue

    if vote==-1:

        break

    votes[vote-1]+=1

#Print the candidate with the same index as the maximum list of votes.

max_index=votes.index(max(votes))

print "Winner is: %s"%candidates[max_index]

#For every candidate print name and the precentage of votes.

sum_all_votes=sum(votes)

for i in range(no_candidates):

    print '%s won %.2f%% of votes'%(candidates[i],100.0*votes[i]/sum_all_votes)

Ask if you need some clearing out about the code, and here is the attachment. I suggest that you download it and read it because I don't know how readable will it be in "quotes".

.rar

elections.rar (Size: 672 bytes / Downloads: 4)

Oh I almost forgot. Here is an example how it looks in Python Shell after you run it.

Code:

Enter the number of candidates: 3

Enter name of candidate 1: Mike

Enter name of candidate 2: Nick

Enter name of candidate 3: Tyler

1. Mike

2. Nick

3. Tyler

Enter vote(-1 to end voting): 1

Enter vote(-1 to end voting): 2

Enter vote(-1 to end voting): 3

Enter vote(-1 to end voting): 4

Invalid vote!

Enter vote(-1 to end voting): 2

Enter vote(-1 to end voting): 2

Enter vote(-1 to end voting): 2

Enter vote(-1 to end voting): 1

Enter vote(-1 to end voting): 1

Enter vote(-1 to end voting): 3

Enter vote(-1 to end voting): 3

Enter vote(-1 to end voting): 3

Enter vote(-1 to end voting): 3

Enter vote(-1 to end voting): -1

Winner is: Tyler

Mike won 25.00% of votes

Nick won 33.33% of votes

Tyler won 41.67% of votes

I will post some more tasks after I do them. Tongue

codecaine · 01-25-2010, 12:12 PM

Nice I'm ready to hack you voting system. JK Smile

***drdebcol*** · 01-25-2010, 08:16 PM

Good use of loops. Good calculations and fast algorithm. Overall very good !

Alphablend · 01-26-2010, 04:41 AM

lol i will sell it in the next US president elections. i will be rich.... lol

@co(de)caine Tongue

well im just a beginner and i dont know how to protect programs, and my intention wasnt to protect it. i shared the source Smile

@drdebcol
thx bro Smile