梵高先生的专栏

#include #include using namespace std;//#define yangyuanint main(){#ifdef yangyuan ifstream in("in.txt"); cin.rdbuf(in.rdbuf());#endif // yangyuan int n; cin >> n; while (n--) {

不要被题目描述的输入所迷惑，虽然有中文字符，但是这和求解并没有关系，所以不用考虑字符编码的问题直接从标准输入读出然后舍弃就好。然后就是注意题目要求的输出精度。#include #include #include #include using namespace std;//#define yangyuanint main(){#ifdef yangyuan ifstre

/** * Created by YangYuan on 2017/12/8. */public class Problem2004{ public static void main(String[] args) { Scanner scanner = new Scanner(System.in); while (scanner.hasNex

/** * Created by YangYuan on 2017/12/8. */public class Problem2006{ public static void main(String[] args) { Scanner scanner = new Scanner(System.in); while (scanner.hasNex

/** * Created by YangYuan on 2017/12/8. */public class Problem2007{ public static void main(String[] args) { Scanner scanner = new Scanner(System.in); int m, n; whi

根据输入的数据，统计负数、零、正数的数量。package introduction;import java.util.Scanner;/** * Created by YangYuan on 2017/12/8. */public class Problem2008{ public static void main(String[] args) {

根据数列的定义，求前m项的和，注意输出精度。package introduction;import java.text.DecimalFormat;import java.util.Scanner;/** * Created by YangYuan on 2017/12/8. */public class Problem2009{ public static vo

根据水仙花数的定义，求解就好。package introduction;import java.util.Scanner;/** * Created by yangyuan on 2017/12/8. */public class Problem2010{ public static void main(String[] args) { Sc