题目
解答
class Solution {public boolean findWhetherExistsPath(int n, int[][] graph, int start, int target) {Map<Integer, Set<Integer>> graphE new HashMap<>();for (int i 0; i < graph.length; i) {int from graph[i][0];int to graph[…
01数学运算using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;namespace _02
{class Program{static void Main(string[] args){//Math 提供一些关于数学运算的方法Console.WriteLine(Math.PI);//圆周率 C…