一个方法接收一个int类型值,需要返回它的相反数. 如传入1,返回-1 传入-22,返回22 最简单的方式是return 0-number; 还有其他方式: public class Kata { public static int opposite(int number) { return -number; } } public class Kata{ public static int opposite(int number){ return number * -1; } } public…
Tree Time Limit: 5000MS Memory Limit: 131072K Total Submissions: 6131 Accepted: 1682 Description You are given a tree with N nodes. The tree's nodes are numbered 1 through N and its edges are numbered 1 through N − 1. Each edge is associated with…
［抄题］: Reverse bits of a given 32 bits unsigned integer. Example: Input: 43261596 Output: 964176192 Explanation: 43261596 represented in binary as 00000010100101000001111010011100, return 964176192 represented in binary as 00111001011110000010100101…
法1:排序后,首尾两个指针 法2:每个数的绝对值如果出现过,flag置为1,如果再次出现,就计数+1 本文采用法1 import java.util.Arrays; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); int a[] = new int[n];…
Given an m * n matrix M initialized with all 0's and several update operations. Operations are represented by a 2D array, and each operation is represented by an array with two positive integers a and b, which means M[i][j] should be added by one for…
Given an m * n matrix M initialized with all 0's and several update operations. Operations are represented by a 2D array, and each operation is represented by an array with two positive integers a and b, which means M[i][j] should be added by one for…
Vijos题解 题库地址:https://vijos.org/p P1001 谁拿了最多奖学金 题意:按照指定要求计算奖学金,直接用if判断即可 #include<iostream> using namespace std; struct STUDENT{ string name; int n1,n2; char xsgb,xb; int lw; int jxj; }; int main(){ int n; int sum=0; cin>>n; struct STUDENT stu…
