[leetcode]371. Sum of Two Integers
Calculate the sum of two integers a and b, but you are not allowed to use the operator +
and -
.
Example 1:
Input: a = 1, b = 2 Output: 3
分析:
求兩數之和,且不能用+,-。可以用用異或算不帶進位的和,用與並左移1位來算進位,然後把兩者加起來即可。
class Solution { public: int getSum(int a, int b) { if(b == 0) return a; int sum = a ^ b; int carry = (a & b) << 1; return getSum(sum , carry); } };
相關推薦
LeetCode: 371 Sum of Two Integers(easy)
pan per ret sum integer 計算 code 移位 etc 題目: Calculate the sum of two integers a and b, but you are not allowed to use the operator + and -
leetcode-371-Sum of Two Integers
判斷 特殊 而且 tor 完成 很多 bmi else if 優化 題目描述: Calculate the sum of two integers a and b, but you are not allowed to use the operator + and -. E
LeetCode-371. Sum of Two Integers
Calculate the sum of two integers a and b, but you are not allowed to use the operator + and -.
[leetcode]371. Sum of Two Integers
Calculate the sum of two integers a and b, but you are not allowed to use the operator + and -. Example 1:
LeetCode--371. Sum of Two Integers(兩個整數的和)Python
題目: 給定兩個整數a和b,要求不使用‘+’和‘-’,返回這兩個整數的和。 解題思路: 由於不能使用加減符號,故考慮使用二進位制數的按位與和按位或等操作,已知按位異或可以得到不考慮進位的結果a^b,按位與可以得到進位的情況a&b。所以把進位的結果左移一位,再和異或的
【LeetCode】371. Sum of Two Integers
Problem:Calculate the sum of two integers a and b, but you are not allowed to use the operator + and -.Example:Given a = 1 and b = 2, retu
371. Sum of Two Integers 負數不行 ?
Calculate the sum of two integers a and b, but you are not allowed to use the operator + and -. E
371. Sum of Two Integers
題目: 計算兩個整數A和B相加,但你不允許使用運算子+和-。 例子: 例如,A= 1 和 B = 2, return 3. 分析:DONE 說實話每次看到位運算我就頭疼。其實不會此問題,純屬學習
Tutorial: 371. Sum of Two Integers
題目 給定兩個int變數a、b,要求返回兩者之和,但不準使用運算子+和-。 演算法 這個題目不準使用運算子,那就只能通過位操作來模擬加減運算了。 1. a和b相與,能得出產生進位的地方car
371. Sum of Two Integers也許是最簡潔易懂的做法了
Calculate the sum of two integers a and b, but you are not allowed to use the operator + and -.
LeetCode演算法題-Sum of Two Integers(Java實現)
這是悅樂書的第210次更新,第222篇原創 01 看題和準備 今天介紹的是LeetCode演算法題中Easy級別的第78題(順位題號是371)。計算兩個整數a和b的總和,但不允許使用運算子+和 - 。例如: 輸入:a = 1,b = 2 輸出:3 輸入:a = -2,b = 3 輸出:1 本次解題
#leetcode#Sum of Two Integers
Calculate the sum of two integers a and b, but you are not allowed to use the operator + and -. Example:
[LeetCode] Sum of Two Integers 兩數之和
Calculate the sum of two integers a and b, but you are not allowed to use the operator + and -. Example: Given a = 1 and b = 2, return 3. Credits:Sp
Sum of Two Integers
java clas 條件 過程 http 直接 符號 opera color Calculate the sum of two integers a and b, but you are not allowed to use the operator + and -. Ex
[Swift]LeetCode371. 兩整數之和 | Sum of Two Integers
style ive The class lee forward operator 使用 test case Calculate the sum of two integers a and b, but you are not allowed to use the opera
[leetcode-599-Minimum Index Sum of Two Lists]
sta art urg cond and st2 index mon 索引 Suppose Andy and Doris want to choose a restaurant for dinner, and they both have a list of favorit
[leetcode]599. Minimum Index Sum of Two Lists
span i++ 結果 ont () max hashmap body col 哈希表應用比較典型 public String[] findRestaurant(String[] list1, String[] list2) { //哈希表存字符串和對應下
[LeetCode] Minimum Index Sum of Two Lists 兩個表單的最小座標和
Suppose Andy and Doris want to choose a restaurant for dinner, and they both have a list of favorite restaurants represented by strings. You need to hel
【python3】leetcode 599. Minimum Index Sum of Two Lists(easy)
599. Minimum Index Sum of Two Lists(easy) Suppose Andy and Doris want to choose a restaurant for dinner, and they both have a list of favorite
#Leetcode# 599. Minimum Index Sum of Two Lists
between color mic comm starting fin urn ica style https://leetcode.com/problems/minimum-index-sum-of-two-lists/ Suppose Andy and Doris