A number that will be the same when it is written forwards or backwards is known as a Palindromic Number. For example, 1234321 is a palindromic number. All single digit numbers are palindromic numbers. Non-palindromic numbers can be paired with palin…

题目 A number that will be the same when it is written forwards or backwards is known as a Palindromic Number. For example, 1234321 is a palindromic number. All single digit numbers are palindromic numbers. Non-palindromic numbers can be paired with pa…

A + B Problem II Time Limit:1000MS     Memory Limit:32768KB     64bit IO Format:%I64d & %I64u Description I have a very simple problem for you. Given two integers A and B, your job is to calculate the Sum of A + B.    Input The first line of the inpu…

1024 Palindromic Number (25 分)   A number that will be the same when it is written forwards or backwards is known as a Palindromic Number. For example, 1234321 is a palindromic number. All single digit numbers are palindromic numbers. Non-palindromic…

进制转换 + 大整数取模一,题意: 在b进制下,求p%m,再装换成b进制输出. 其中p为b进制大数1000位以内,m为b进制数9位以内二,思路: 1,以字符串的形式输入p,m; 2,转换:字符串->整数 十进制->b进制; 3,十进制下计算并将整形结果转换成字符串形式,并倒序储存; 4,输出.三,步骤: 1,输入p[],m[]; 2,字符串->整形 + 进制->b进制: i,进制转换语句:m2 = m2*b + m[j]-'0'; ii,大整数取模,大整数可以写成这样的形式: 12…

最近正直春招,偶尔接触到了华为的这道大整数相加的测试题,在网上找了一个算法,然后自己尝试进行了优化,最后也对memmove()函数效率有了进一步把握. #include <time.h>#include <iostream>using namespace std; #define MAX_LENGTH 128 void Add(const char *pszOperand1, const char *pszOperand2, char *pszResult); //互联网上原始代码…

1024. Palindromic Number (25) 时间限制 400 ms 内存限制 65536 kB 代码长度限制 16000 B 判题程序 Standard 作者 CHEN, Yue A number that will be the same when it is written forwards or backwards is known as a Palindromic Number. For example, 1234321 is a palindromic number.…

三个题目分别考察大整数相加相乘相除运算.如果按照传统算法是取一个长数组,之后进行模拟或者FFT来进行运算.但是相对繁琐. 后来昨天的青岛区域赛网赛1001,用到了JAVA的BigDecimal,于是反过来想到了这几个题目.用JAVA写了以后果然很简单. 1002:大数相加: AC代码: import java.util.*; import java.math.*; public class Main { public static void main(String[] args) { // TO…

题意: 给出一个数N(N<=10^10),最多可操作K次(K<=100),每次操作为这个数和其反转之后的数相加,若得到的结果为回文数,则输出:若在K次迭代后仍然不是回文数,在输出第K次操作后的结果. 思路: 因为int型最大可表示为2^31-1=2,147,483,647,显然本题的范围已经超出了int可表示的范围了.因此可用大整数的思想. 大整数相加时最后要注意一下进位carry是否大于0. 这里用到一点小trick,需要熟悉string的构造函数.这里使用了 ' 这样的写法表示的是int型…

Palindromic Number A number that will be the same when it is written forwards or backwards is known as a Palindromic Number. For example, 1234321 is a palindromic number. All single digit numbers are palindromic numbers. Non-palindromic numbers can b…