- 2018.08.07
- 數論,
poj942Paths on a Grid(組合數學)
Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 24411 Accepted: 6050 Description Imagine you are attending your math lesson at school. […]
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Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 24411 Accepted: 6050 Description Imagine you are attending your math lesson at school. […]
Description 已知N,求phi(N) Input 正整數N。N<=10^18 Output 輸出phi(N) Sample Input 8 Sample Output 4 HINT 題解 https://www.cnblogs.com/galaxies/p/bzoj4802.html […]
題目描述 小z熱衷於數學。 今天數學課的內容是解不等式:L<=S*x<=R 。小z心想這也太簡單了,不禁陷入了深深的思考:假如已知L,R,S,M ,滿足L<=(S*x) mod M<=R 的最小正整數x該怎麼求呢? 輸入 包含多組資料。 第一行包含一個整數T,表示資料組數,接 […]
#include<bits/stdc .h> using namespace std; #define rd(x) scanf("%d",&x) #define rdd(x,y) scanf("%d%d",&x,&y) #define rddd(x,y,z) sc […]
nefu 84 五指山 西遊記中孫吾空大鬧天宮,如來佛祖前來降伏他,說道:“我與你打個賭賽;你若有本事,一筋斗打出我這右手掌中,算你贏,再不用動刀兵苦爭戰,就請玉帝到西方居住,把天宮讓你;若不能打出手掌,你還下界為妖,再修幾劫,卻來爭吵。” 那大聖聞言,暗笑道:“這如來十分好呆!我老孫一筋斗去十萬八 […]
Sigma function is an interesting function in Number Theory. It is denoted by the Greek letter Sigma (σ). This function actually denotes the sum of all […]
It’s said that Aladdin had to solve seven mysteries before getting the Magical Lamp which summons a powerful Genie. Here we are concerned about […]
這題在打比賽時,我感覺到了來自於世界的惡意。。。 Lindström–Gessel–Viennot lemma定理,在比賽前,我是完全沒有聽說過的,好想哭,掛機的數論選手。。。 1. Count the number of n x m matrices A satisfying the follow […]
Strange Way to Express Integers Time Limit: 1000MS Memory Limit: 131072K Total Submissions: 17853 Accepted: 6013 Description Elina is reading a book w […]
C. Cave Painting time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output Imp is watching a documentar […]