Problem C
If We Were a Child Again
Input:?standard input
Output:?standard output
Time Limit:?7?seconds
?
| “Oooooooooooooooh! If I could do the easy mathematics like my school days!! I can guarantee,that I’d not make any mistake this time!!” Says a smart university student!! But his teacher even smarter – “Ok! I’d assign you such projects in your software lab. Don’t be so sad.” “Really!!” - the students feels happy. And he feels so happy that he cannot see the smile in his teacher’s face. ? ? |
|
| The Problem ? The first project for the poor student was to make a calculator that can just perform the basic arithmetic operations. ? But like many other university students he doesn’t like to do any project by himself. He just wants to collect programs from here and there. As you are a friend of him,he asks you to write the program. But,you are also intelligent enough to tackle this kind of people.?You agreed to write only the (integer) division and mod (% in C/C++) operations for him. |
| ? Input Input is a sequence of lines. Each line will contain an input number. One or more spaces. A sign (division or mod). Again spaces. And another input number. Both the input numbers are non-negative integer. The first one may be arbitrarily long. The second number?n?will be in the range (0 < n < 231). |
| ? ? Output A line for each input,each containing an integer. See the sample input and output. Output should not contain any extra space. |
| ? ? ? Sample Input 110 / 100 99 % 10 2147483647 / 2147483647 2147483646 % 2147483647 |
? ? ? ? |
? ? Sample Output 1 9 1 2147483646 |
? |
第一次用java写，以前从来没看过，今天看了一点基本的输入输出切了一道A+B后，直接来一道高精度的，1A
，没有编译器，直接敲完就交，谁给我的勇气？。。。待会写一篇总结java里面的高精度大数的用法
import java.io.*;
import java.util.*;
import java.math.*;
import java.text.*;
public class Main {
public static void main(String args[]) {
Scanner in = new Scanner(System.in);
BigInteger a,b;char c;
while(in.hasNext()){
a = in.nextBigInteger();
c=in.next().charAt(0);
b = in.nextBigInteger();
if(c=='/')
System.out.println(a.divide(b));
else
System.out.println(a.mod(b));
}
}
}
