给定四个包含整数的数组列表 A , B , C , D ,计算有多少个元组 (i, j, k, l) ，使得 A[i] + B[j] + C[k] + D[l] = 0。 为了使问题简单化 ...
You are given four integer arrays `nums1`, `nums2`, `nums3`, and `nums4`, each of length `n`. 1. Use four nested loops to check all possible tuples. 2. Count those whose sum equals zero. - Time ...
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