一.Description One of the first users of BIT's new supercomputer was Chip Diller. He extended his exploration of powers of 3 to go from 0 to 333 and he explored taking various sums of those numbers. ``This supercomputer is great,'' remarked Chip. ``I…

题目 我要开始练习一些java的简单编程了^v^ import java.io.*; import java.util.*; import java.math.*; public class Main { /** * @param args */ public static void main(String[] args) throws Exception { // 定义并打开输入文件 Scanner cin = new Scanner(System.in); BigInteger a, sum…

题目链接:http://poj.org/problem?id=1503 import java.io.*; import java.math.BigInteger; import java.util.Scanner; public class Main { public static void main(String []args) throws IOException{ Scanner scanner=new Scanner(System.in); BigInteger a=BigIntege…

Integer Inquiry Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 11678    Accepted Submission(s): 2936 Problem Description One of the first users of BIT's new supercomputer was Chip Diller. He ex…

1.链接地址: http://poj.org/problem?id=1503 2.题目: Integer Inquiry Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 28115   Accepted: 10925 Description One of the first users of BIT's new supercomputer was Chip Diller. He extended his explorati…

本题就是大数相加,题目都不用看了. 只是注意的就是HDU的肯爹输出,好几次presentation error了. 还有个特殊情况,就是会有空数据的输入case. #include <stdio.h> #include <vector> #include <string.h> #include <algorithm> #include <iostream> #include <string> #include <limits.h…

Description One of the first users of BIT's new supercomputer was Chip Diller. He extended his exploration of powers of 3 to go from 0 to 333 and he explored taking various sums of those numbers. This supercomputer is great,'' remarked Chip.I only wi…

题目链接:http://poj.org/problem?id=1503 思路分析: 基本的高精度问题,使用字符数组存储然后处理即可. 代码如下: #include <iostream> #include <string> using namespace std; + ; char input[M]; int A[M], sum[M]; void Reverse(int A[], const char str[]) { int len = strlen(str); ; ; i >…

Description One of the first users of BIT's new supercomputer was Chip Diller. He extended his exploration of powers of 3 to go from 0 to 333 and he explored taking various sums of those numbers. ``This supercomputer is great,'' remarked Chip. ``I on…

Integer Inquiry 1 import java.util.*; 2 import java.math.*; 3 import java.io.*; 4 import java.text.*; 5 6 public class Main 7 { 8 public static void main(String[] args) 9 { 10 // 对于大量输入,下面方式可能会快一些. 11 Scanner cin=new Scanner(new BufferedInputStream(S…

一.Description The creators of a new programming language D++ have found out that whatever limit for SuperLongInt type they make, sometimes programmers need to operate even larger numbers. A limit of 1000 digits is so small... You have to find the sum…

问题: 大数相加不能直接使用基本的int类型,因为int可以表示的整数有限,不能满足大数的要求.可以使用字符串来表示大数,模拟大数相加的过程. 思路: 1.反转两个字符串,便于从低位到高位相加和最高位的进位导致和的位数增加: 2.对齐两个字符串,即短字符串的高位用‘0’补齐,便于后面的相加: 3.把两个正整数相加,一位一位的加并加上进位. 具体代码如下: /** * 用字符串模拟两个大数相加 * @param n1 加数1 * @param n2 加数2 * @return 相加结果 */ pu…

代码: import java.math.*; import java.util.Scanner; public class Main { public static void main(String args[]){ Scanner cin = new Scanner(System.in); BigInteger sum,a; sum = BigInteger.valueOf(0); while(true){ a = cin.nextBigInteger(); if(a.equals(BigI…

题目 以字符串的形式读入两个数字,编写一个函数计算它们的和,以字符串形式返回. 分析 两个字符串,定义两个指针,分别从这两个字符串的结尾开始遍历,因为可能字符串1比字符串2长度要长,因此只要两者其中有一个还没遍历玩,另一个就用0来补全空位:指针从后往前获取当前两个元素,将当前两个字符,都减去'0',这就将字符转换成了数字,再将这两个数字和进位值相加,记得初始化进位值是0,然后定义一个变量res,res = (l+r+ans),ans = res/10; l和r分别是两个指针,ans是进位数.最后…

本题是CVTE二面编程题,首先考虑返回值肯定是一个字符串(int会有溢出可能),并且两个字符串只含数字,不含”+“.”-“这种. 代码如下: public static String add(String str1, String str2) { if(str1 == null) return str2; if(str2 == null) return str1; StringBuffer s1 = new StringBuffer(str1).reverse(); StringBuffer s…

解题思路:因为给定的数据是多组,所以我们只需要多次做加法就可以了,将上一次的和又作为下一次加法运算的一个加数. 反思:还是题意理解不够清楚,最开始以为只是算三个大数相加,后来才发现是多个,然后注意到当输入a的第一个字符为0的时候结束运算,输出结果.  Integer Inquiry  One of the firstusers of BIT's new supercomputer was Chip Diller. He extended his explorationof powers of 3…

Integer Inquiry Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 27730   Accepted: 10764 Description 题目链接:http://poj.org/problem?id=1503 One of the first users of BIT's new supercomputer was Chip Diller. He extended his exploration of pow…

Integer Inquiry Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 9376    Accepted Submission(s): 2406 Problem Description One of the first users of BIT's new supercomputer was Chip Diller. He ex…

题目大意:输入n组数据,每组数据中又有若干长度不大于100的整数,以0结束每组数据的输入,求每组中数据之和.每两组数据输入之间有一行空格,输出也是如此. Integer Inquiry Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 17770 Accepted Submission(s): 4628 Problem Description O…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1047 题目描述: 题意有点绕,但是仔细的读了后就发现是处理大数相加的问题.注意:输入数据有多组,每组输入要用一个t来控制输入的模块,每个模块的输入以0来结束.换句话说,有多少模块,输出就有多少个VeryLongInteger. 代码实现: import java.math.BigInteger; import java.util.Scanner; public class Hdu1047 { pub…

大数相加: package algorithm; //使用BigInteger类验证 import java.math.BigInteger; public class BigAdd { public static String bigNumberAdd(String f, String s) { // 翻转两个字符串,并转换成数组 char[] a = new StringBuffer(f).reverse().toString().toCharArray(); char[] b = new…

Integer Inquiry Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 22451    Accepted Submission(s): 6099 Problem Description One of the first users of BIT's new supercomputer was Chip Diller. He e…

之前参加某公司笔试,机试题目是大数相加,两大数是字符串形式,求和. 当时讨巧用的是BigDecimal类,但是发迷糊了,以为b1.add(b2)后,和就加到b1上了,结果一直输出不对. 其实应该是这样: private static void add2Sum(String s1, String s2) { System.out.println("-----------"); BigDecimal b1 = new BigDecimal(s1); BigDecimal b2 = new…

思路来源:: https://blog.csdn.net/lichong_87/article/details/6860329 /** * @date 2018/6/22 * @description */ public class BigNumUtil { /** * 大数相乘 * @param a * @param b * @return */ public static String multi(String a,String b){ //1.判断相乘之后的符号 char signA =…

A + B Problem II Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 313689 Accepted Submission(s): 60742 Problem Description I have a very simple problem for you. Given two integers A and B, your job…

Integer Inquiry Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 9196    Accepted Submission(s): 2354 Problem Description One of the first users of BIT's new supercomputer was Chip Diller. He ext…

Children’s Queue Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 17918    Accepted Submission(s): 5976 Problem Description There are many students in PHT School. One day, the headmaster whose na…

 Integer Inquiry  One of the first users of BIT's new supercomputer was Chip Diller. He extended his exploration of powers of 3 to go from 0 to 333 and he explored taking various sums of those numbers. ``This supercomputer is great,'' remarked Chip.…

题目要求:用字符串模拟两个大数相加. 一.使用BigInteger类.BigDecimal类 public static void main(String[] args) { String a="8888899999999888";  String b="88888888888888";  String str=new BigInteger(a).add(new BigInteger(b)).toString();  System.out.println(str);…

/* Integer Inquiry Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 15874 Accepted Submission(s): 4079 Problem Description One of the first users of BIT's new supercomputer was Chip Diller. He exte…