原创 Jumping Joe SGU - 141
Jumping Joe SGU - 141 Joe is a frog who likes to jump a lot. In fact, that's all he does: he jumps forwards and backwa
2020-06-13 12:08:37
原创 Coprime HDU - 5072
Coprime HDU - 5072 There are n people standing in a line. Each of them has a unique id number. Now the Ragnarok is
2020-06-13 12:08:37
原创 Array Challenge 2017 多校10 矩陣快速冪
Array Challenge There’s an array that is generated by following rule.h0=2,h1=3,h2=6,hn=4hn−1+17hn−2−12hn−3−16 And le
2020-02-26 06:44:17
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原创 Two strings 2017 多校 9 J
Two strings Giving two strings and you should judge if they are matched. The first string contains lowercase l
2020-02-26 06:44:17
原创 GCD HDU - 1695
GCD HDU - 1695 Give n 5 integers: a, b, c, d, k, you're to find x in a...b, y in c...d that GCD(x, y) = k. GCD(x, y)
2020-02-26 06:44:17
原创 Law of Commutation HDU - 6189
Law of Commutation HDU - 6189 As we all know, operation ''+'' complies with the commutative law. That is
2020-02-26 06:44:17
原创 Co-prime HDU - 4135
HDU _4135 Co_prime Given a number N, you are asked to count the number of integers between A and B inclusive which a
2020-02-26 06:44:17
原创 HDU 1796 How many integers can you find
HDU 1796 How many integers can you find 題意： 求小於n 的數中有多少個不同的數是 m個數中的某一個的倍數。 思路：容斥原理，假如m=2 ,ans=n/a[1]+n/a[2]-n/lc
2020-02-26 06:44:17
原创 Snail Alice HDU - 3411
Snail Alice HDU - 3411 A function f(n), n is a positive integer, and Given q and n, please calculate the value
2020-02-26 06:44:17
原创 Dead Fraction POJ - 1930
Dead Fraction POJ - 1930 Mike is frantically scrambling to finish his thesis at the last minute. He needs to assemble
2020-02-26 06:44:17
原创 Coprime HDU - 3388
Coprime HDU - 3388 Please write a program to calculate the k-th positive integer that is coprime with m and n simult
2020-02-26 06:44:17
原创 RealPhobia HDU - 4180
RealPhobia HDU - 4180 Bert is a programmer with a real fear of floating point arithmetic. Bert has quite successfully
2020-02-26 06:44:17
原创 Integer Sequences SGU - 140
Integer Sequences SGU - 140 A sequence A is called an integer sequence of length N if all its elements A1 A2 .. AN ar
2020-02-26 06:44:17
原创 LightOJ 1306 Solutions to an Equation
LightOJ 1306 Solutions to an Equation You have to find the number of solutions of the following equation: Ax + By +
2020-02-26 06:44:17
原创 So Easy! HDU 4565
So Easy! 先吐槽一下吧 完全沒有想要做這個題，本來我在學 FFT 專題的，然後有個題不會搜題解，好不容易找到了一個，真坑 然後看着一臉懵，完全不知道講的啥，在一個小時之後我選擇了放棄，準備敲一個矩陣快速冪，A了就跑
2020-02-26 06:44:17