网易后端今晚笔试的有吗？
第一题试了几个用例，都没问题，只能过12.5，无法理解呢。。。而且这个输入输出必须带上“”有点奇葩
import java.util.*;
public class Main{
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
while (scanner.hasNext()){
String s = scanner.nextLine();
String[] str = s.split(",");
String s1 = str[0].substring(1,str[0].length()-1);
String s2 = str[1].substring(1,str[1].length()-1);
Double yuan = Double.parseDouble(s1)+Double.parseDouble(s2);
String ss = yuan+"";
StringBuilder res = new StringBuilder();
res.append('"');
if(yuan.intValue()-yuan==0) ss= yuan.intValue()+"";
int n = ss.length();
int ca = 0;
for (int i = n-1; i >= 0; i--) {
char c = ss.charAt(i);
if(c=='.'){
res.append(".");
continue;
}
int tmp = ca+c-'0';
if(c=='0'){
tmp = ca+1;
}
res.append(tmp%9);
ca = tmp/9;
}
if(ca!=0) res.append(ca);
res.append('"');
System.out.println(res.reverse().toString());
}
}
} 第二题也迷之卡60 import java.util.*;
public class Main{
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
while (scanner.hasNext()){
int n = scanner.nextInt();
if(n<=0){
System.out.println(0);
continue;
}
int[] man = new int[n];
int[] project = new int[n];
for (int i = 0; i < n; i++) {
man[i] = scanner.nextInt();
}
for (int i = 0; i < n; i++) {
project[i] = scanner.nextInt();
}
int k = scanner.nextInt();
Arrays.sort(man);
Arrays.sort(project);
int count = 0;
int res = 1;
for (int i = n-1; i >= 0; i--) {
if(man[i]>project[i]) count++;
else if (man[i]<project[i]) count--;
}
if(count<0){
System.out.println(0);
continue;
}else{
for (int i = 1; i <= count; i++) {
res *= i;
}
System.out.println(res%k);
}
}
}
}
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