Given a non-empty array of numbers, a0, a1, a2, … , an-1, where 0 ≤ ai < 231. Find the maximum result of ai XOR aj, where 0 ≤ i, j < n. ...
這道題的題目很好理解,就是給你一個非空數組,求出數組中任意兩個數異或后能得到的最大值。原題鏈接:LeetCode 。根據題目下面的tag的提示,本題的解題思路是Trie樹的利用和整數的位操作。 這里Trie樹建立的思路是,整數在存儲時是一個占據 bit的數,因此可以看成一個含 個字符的字符串,這個字符串中的每個字符只可能是 或 。因此,將一個整數插入Trie樹就是從它的最高位開始,根據每一位上的 ...
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Given a non-empty array of numbers, a0, a1, a2, … , an-1, where 0 ≤ ai < 231. Find the maximum result of ai XOR aj, where 0 ≤ i, j < n. ...
https://leetcode.com/problems/maximum-xor-of-two-numbers-in-an-array/ 利用了異或的”自反性“: a ^ b = c,而a ^ b ^ b = a, 則 c ^ b = a 其他運算定律有:交換律、結合律、分配律。 注意 ...
You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single ...
題目: You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain ...
本題是使得兩個鏈表相加,每個鏈表中值均為0~9,對於兩個鏈表對應的值相加值sum若大於9,則為sum%10,並在指向的下一對節點的和sum上加1。 做題思路: 判斷兩鏈表是否有空鏈表,若有, ...
題目: 兩個數字求和,數字用鏈表表示,每一個結點代表一位。鏈表順序與數字順序相反,即表頭存放數字的最低位。 解法: 分別遍歷兩個鏈表的每個結點,對兩個結點求和即可。要維護一個變量保存每次相 ...
原題地址:https://oj.leetcode.com/problems/add-two-numbers/ 題意: You are given two linked lists representing two non-negative numbers. The digits ...
445-Add Two Numbers II You are given two linked lists representing two non-negative numbers. The most significant digit comes first and each ...