Let the user enter a decimal number. Therange allowed is 0.0001 to 0.9999. Only four decimal places are allowed. Theoutput should be an irreducible fraction. E.g.: If the user enters 0.35,the irreducible fraction will be 7/20. 等于找与10000的公约数 def fract…
In this tutorial, we show you how to convert an IP address to its decimal equivalent in Java, and vice versa. For examples : Bash 255.255.255.255 <-> 4294967295 192.168.1.2 <-> 3232235778 1. IP Address to Decimal We show you two ways to conver…
A number is called 'desirable' if all thedigits are strictly ascending eg: 159 as 1<5<9. You know that your rivalhas a strictly numeric password that is 'desirable'. Your close ally has givenyou the number of digits (N) in your rival's password. WAP…
Find the seed of a number. Eg : 1716 = 143*1*4*3 =1716 so 143 is the seed of 1716. find all possible seed for a given number. 辗转相除法,由性质可利用 sqrt(num) <= seed_number <= num/2 缩小范围. def seed_number(num) seed = Math.sqrt(num).to_i while seed <= num /…
Validate if a given string is numeric. Some examples:"0" => true" 0.1 " => true"abc" => false"1 a" => false"2e10" => true Note: It is intended for the problem statement to be ambiguous. You…
题目链接: http://codeforces.com/contest/464/problem/C J. Substitutes in Number time limit per test 1 secondmemory limit per test 256 megabytes 问题描述 Andrew and Eugene are playing a game. Initially, Andrew has string s, consisting of digits. Eugene sends A…
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. Although palindromic numbers are most often cons…
Friendly number Long numbers can be made to look nicer, so let’s write some code to do just that. You should write a function for converting a number using several rules. For starters, you will need to cut the number with a given base (base argument;…
题目链接 C. Substitutes in Number time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Andrew and Eugene are playing a game. Initially, Andrew has string s, consisting of digits. Eugene sends Andrew…
