感悟：第一次笔试，有点小慌，但是开始做题就进入状态了，整体感悟，总共分为选择题，多选（单选）选择题，编程题
选择题：计网，操作系统一些（还行，都是些408知识）
多选（单选）选择题：和上面差不多吧，没有什么Java题目
编程题：第一题！！！恶心死人了，不给输入样例个数，就是要自己判断输入换行符，我个人觉得是能AC，但是一直wa,不知道为啥，最后放弃了.
package Test; import java.util.Scanner; /** * @author Empirefree 胡宇乔: * @version 创建时间：2020年3月20日 上午9:30:15 */ public class Main { public static void main(String[] args) { //数据的初始化, int n, cnt = 0, temp; int[] num = new int[100005]; Scanner scanner = new Scanner(System.in); n = scanner.nextInt(); Scanner scanner2 = new Scanner(System.in); String string = scanner2.nextLine(); Scanner scanner3 = new Scanner(string); while(scanner3.hasNextLine()){ temp = scanner3.nextInt(); num[cnt++] = temp; } if(n > cnt) n = cnt; if(n < 0) n = 0; //输出 for(int i = n; i < cnt; i++){ System.out.printf("%d ", num[i]); } for(int i = n - 1; i >= 0; i--){ if(i == 0) System.out.printf("%d ", num[i]); else System.out.printf("%d ", num[i]); } } }
Scanner scanner = new Scanner(System.in); n = scanner.nextInt(); Scanner scanner2 = new Scanner(System.in); String string = scanner2.nextLine(); Scanner scanner3 = new Scanner(string); while(scanner3.hasNextLine()){ temp = scanner3.nextInt(); num[cnt++] = temp; }
然后后面2道题很简单，条件输出和二次幂
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JgGgBQDOSJss77r :r;::: , PH r, ,;5: ,::::;7Ls7Lc7;: ,:7JP17rJUs .:J: :; .,:K6BQS7:.,.,. :r7Ji;r7;::;;. . **/ #include <bits/stdc++.h> using namespace std; #define FFI(a, b) for(int i = a; i < b; i++) #define FFJ(a, b) for(int j = a; j < b; j++) #define FFK(a, b) for(int k = a; k < b; k++) #define RR(a, b) for(int i = a; i > b; i++) #define ME(a, b) memset(a, b, sizeof(a)) #define FILL(a, b, c) fill(a, a + b, c) #define SC(x) scanf("%d", &x) #define SCC(a, b) scanf("%d%d", &a, &b) #define SCCC(a, b, c) scanf("%d%d%d", &a, &b, &c) #define PY() printf("Yes ") #define PN() printf("No ") #define PR(x) printf("%d ", x) #define PRR(a, b) printf("%d%d ", a, b); #define INF 0x3f3f3f3f #define MAX 1001 #define MOD 1000000007 #define E 2.71828182845 #define M 8 #define N 6 typedef long long LL; const double PI = acos(-1.0); typedef pair<int, int> Author; vector<pair<string, int> > VP; /*******************************************************************************************************************************************************/ int main(void){ ios::sync_with_stdio(false); cin.tie(0); cout.tie(0); int n; cin>>n; while(n){ if(n % 2 != 0 && n != 1){ cout<<"False"<<endl; return 0; } n /= 2; } cout<<"True"<<endl; return EXIT_SUCCESS; }