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minimum_partition.py

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 patch-2

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minimum_partition.py

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"""

Partition a set into two subsets such that the difference of subset sums is minimum

"""

def findMin(arr):

n = len(arr)

s = sum(arr)

dp = [[False for x in range(s+1)]for y in range(n+1)]

for i in range(1, n+1):

dp[i][0] = True

for i in range(1, s+1):

dp[0][i] = False

for i in range(1, n+1):

for j in range(1, s+1):

dp[i][j]= dp[i][j-1]

if (arr[i-1] <= j):

dp[i][j] = dp[i][j] or dp[i-1][j-arr[i-1]]

for j in range(int(s/2), -1, -1):

if dp[n][j] == True:

diff = s-2*j

break;

return diff