摘要：int add(int x, int y) { int sum = 0; int temp = 1; while (temp) { sum = x ^ y;//异或，半加 temp = (x & y) << 1;//与运算后，左移一位 x = sum; y = temp; } return x;}i 阅读全文

摘要：#include<iostream>#include<cmath>#include<vector>using namespace std;class Solution {public: int removeElement(vector<int>& nums, int val) { int slowI 阅读全文

摘要：struct point { float x; float y;}; //求取三角形面积，1/2*AB*AC float Area(const point p1,point p2,point p3) { point AB, BC; AB.x = p1.x - p2.x; BC.x = p3.x - 阅读全文