what are the combinations of 10 random integers from 1 to 100, and then 100?
what are the combinations of 10 random integers from 1 to 100, and then 100?
according to the way of the main sentence, we tend to random 10 numbers from 1 to 100, and then find out the combination of 10 random numbers with a sum of 100.
then
import random
from itertools import combinations
rd = random.sample(range(1, 101), 10)
-sharp 10
comb = [j for i in range(1, 11) for j in combinations(rd, i) if sum(j) == 100]
print(rd)
print(comb)if it is a combination of 10 out of 100 and 100, the combination is more, and violence is not advisable.
def get_combs(n=100, k=10, tg=100):
combs = []
x = tg - sum(range(1, k))
def dfs(comb, idx=0, k=k, t=tg):
dmx = min(tg - sum(comb), x, n)
arr = range(1, dmx + 1)
if t == 0 and k == 0:
combs.append(comb[:])
return
if dmx <= idx or k < 0 or t < 0:
return
for i in range(idx, dmx):
v = arr[i]
dfs(comb + [v], i + 1, k - 1, t - v)
dfs([])
return combs-sharp coding: utf-8
import random
def combinationSum2(candidates, target):
res = []
can = sorted(candidates)
def dfs(comb, s, i):
while i < len(can):
if can[i] + s > target:
return
elif can[i] + s == target:
if (comb + [can[i]]) not in res:
res.append(comb + [can[i]])
else:
dfs(comb + [can[i]], s + can[i], i + 1)
i += 1
dfs([], 0, 0)
return res
-sharp1-10010
lst = random.sample(range(1, 101), 10)
-sharp100
print combinationSum2(lst, 100) it's not random, it's permutation, isn't it?
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