Computers and Technology, 24.05.2020 04:59 mikemofun9079
I got an Three Sum programming problem (Python), and able to come up a quick solution. However, after some more testing i found there seems to be a subtle bug in a test case.
Please help if you can shed some light on it.
The problem is - given an array of integer numbers, try to find the pairs of three numbers that can sum up to '0'. Examples:
array = [1, 0, -1, 2, 3, -2]
answer = [[1, 0, -1], [2, 0, -2]] # those triples add up to '0'
However, if the array is [12, 3, 1, 2, -6, 5, 0, -1, -8, 6]
answer = [[-8, 2, 6], [-8, 3, 5], [-6, 1, 5], [-1, 0, 1]] # missing this: [-6, 0, 6] ?!
code:
```
A. sort()
print(A)
result = []
r = len(A) -1
for x in range(len(A) - 2):
left = x + 1 # for each value of x, left starts one greater
# and increments from there.
while (left < r): # left < right
# sums == all three
sums = A[x] + A[left] + A[r]
if (sums < 0): left += 1
if (sums > 0): r -= 1
if not sums: # 0 is False ---> Not False == True
result. append([A[x],A[left],A[r]])
left += 1 # increment left -when find a combination
print(result)
Answers: 2
Computers and Technology, 23.06.2019 13:00
In excel - calculate the actual increase/decrease from first quarter to the second quarter then subtract subtract first quarter value from second quarter total then divide result by first quarter value
Answers: 1
Computers and Technology, 24.06.2019 11:00
The program below has been generalized to read a user's input value for hourlywage. run the program. notice the user's input value of 10 is used. modify that input value, and run again. generalize the program to get user input values for workhoursperweek and workweeksperyear (change those variables' initializations to 0). run the program. monthsperyear will never change, so define that variable as final. use the standard for naming final variables. ex: final int max_length
Answers: 2
Computers and Technology, 25.06.2019 04:00
Plz there is a problem with my account. i no longer have ! ( hand,ambitious,virtuoso etc.) it's like getting brainliest means nothing. how do i get ranks back?
Answers: 1
Computers and Technology, 25.06.2019 04:10
While creating a web page, what does each of the following html tags define? 1. 2. 3. 4. a. defines a new paragraph b. defines a term c. defines a single line break d. defines a heading
Answers: 1
I got an Three Sum programming problem (Python), and able to come up a quick solution. However, afte...
Mathematics, 18.08.2019 23:30
Mathematics, 18.08.2019 23:30
Mathematics, 18.08.2019 23:30
Mathematics, 18.08.2019 23:30
Mathematics, 18.08.2019 23:30
Mathematics, 18.08.2019 23:30
Biology, 18.08.2019 23:30
History, 18.08.2019 23:30
Mathematics, 18.08.2019 23:30
History, 18.08.2019 23:30
Mathematics, 18.08.2019 23:30
Mathematics, 18.08.2019 23:30
Mathematics, 18.08.2019 23:30
History, 18.08.2019 23:30