+- Python Forum (https://python-forum.io)
+-- Forum: Python Coding (https://python-forum.io/forum-7.html)
+--- Forum: General Coding Help (https://python-forum.io/forum-8.html)
+--- Thread: Sum of list items (/thread-32382.html)
Sum of list items - tristanfermat - Feb-06-2021
Hello everyone
If the sum of the numbers in the list1 is not 4000, it should give the closest value to 4000. The maximum number of elements of the output is 6.
For example
Sum = 4000
list1 = [400, 600, 600, 1000]
output1 = [400,600, 1000,1000,1000]
output2 = [600, 600, 600, 600, 600,1000]
...
outputn = [1000,1000, 1000,1000]
If the sum was 4005, the results would still be the same.
what code do i need?
Thank you in advance for your help.
RE: Sum of list items - Larz60+ - Feb-06-2021
Quote:what code do i need?What have you tried?
RE: Sum of list items - tristanfermat - Feb-06-2021
I have this one but It doesn't work as I wanted.
import itertools
import functools
test_matrix = []
stuff = [100,500,300,200]
for L in range(0, len(stuff)+1):
for subset in itertools.combinations(stuff, L):
test_matrix.append(subset)
while True:
res = functools.reduce(lambda i, j: i if 4000 < sum(j)
else j, test_matrix)
test_matrix.remove(res)
a = sum(int(b) for b in res)
print (a)
print ("Maximum sum sublist is : " + str(res))