T1072-虚假的答案：真实的答案
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虚假：（写了好久测试也没问题就是不AC的代码）
import java.util.Scanner;
import java.math.BigInteger;
public class Main {
public static void main(String[] args) {
Scanner in=new Scanner(System.in);
String decimal=in.nextLine();
BigInteger n=new BigInteger(decimal);
String hexStr="";
BigInteger baseCode=new BigInteger("16");
BigInteger zero=new BigInteger("0");
while(!n.equals(zero)) {
String hexDigitStr=n.remainder(baseCode)+"";
long hexDigit=Integer.parseInt(hexDigitStr);
char hexDigitCh=(hexDigit<=9&&hexDigit>=0)?(char)(hexDigit+'0'):(char)(hexDigit-10+'A');
hexStr=hexDigitCh+hexStr;
n=n.divide(baseCode);
}
System.out.print(hexStr);
in.close();
}
}
真实：（从网上扒的只有11行而且超简单秒AC的代码）
import java.math.BigInteger;
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
String num = in.nextLine();
BigInteger step = new BigInteger(num);
System.out.println(step.toString(16).toUpperCase());
in.close();
}
}
感觉自己可能不太适合学java (￣┰￣*)ゞ
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