牛客網編程題——組裝三角形

按照兩數之和的思想解python n = int(input()) l = [int(val) for val in input().split(' ')] l = sorted(l) nums = 0 for i in range(n-2): for j in range(i+1,n-1): pre_sum = l[i] + l [j] for k in

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