1.链接地址: http://bailian.openjudge.cn/practice/1517 http://poj.org/problem?id=1517 2.题目: 总时间限制: 1000ms 内存限制: 65536kB 描述 A simple mathematical formula for e is e=Σ0<=i<=n1/i!where n is allowed to go to infinity. This can actually yield very accurate ap…

u Calculate e Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 19465   Accepted: 11362   Special Judge Description A simple mathematical formula for e is e=Σ0<=i<=n1/i!where n is allowed to go to infinity. This can actually yield very ac…

一.Description A simple mathematical formula for e is e=Σ0<=i<=n1/i! where n is allowed to go to infinity. This can actually yield very accurate approximations of e using relatively small values of n. Input No input Output Output the approximations o…

1. 最前面的格式要记得输入. 2. 计算的时候要从3开始重新计算, 否则会丢失精度. 3. 更快的方式就是打表. #include <iostream> using namespace std; // 5 120 // 6 720 // 7 5040 // 8 40320 // 9 362880 int main(){ cout<<"n e"<<endl; cout<<"- -----------"<<e…

以下是poj百道水题,新手可以考虑从这里刷起 搜索1002 Fire Net1004 Anagrams by Stack1005 Jugs1008 Gnome Tetravex1091 Knight Moves1101 Gamblers1204 Additive equations 1221 Risk1230 Legendary Pokemon1249 Pushing Boxes 1364 Machine Schedule1368 BOAT1406 Jungle Roads1411 Annive…

2992.357000 1000 A+B Problem1214.840000 1002 487-32791070.603000 1004 Financial Management880.192000 1003 Hangover792.762000 1001 Exponentiation752.486000 1006 Biorhythms705.902000 1005 I Think I Need a Houseboat686.540000 1011 Sticks647.566000 1007…

acm之pku题目分类 对ACM有兴趣的同学们可以看看 DP:  1011   NTA                 简单题  1013   Great Equipment     简单题  1024   Calendar Game       简单题  1027   Human Gene Functions   简单题  1037   Gridland            简单题  1052   Algernon s Noxious Emissions 简单题  1409   Commun…

Corn Fields Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 9806   Accepted: 5185 Description Farmer John has purchased a lush new rectangular pasture composed of M by N (1 ≤ M ≤ 12; 1 ≤ N ≤ 12) square parcels. He wants to grow some yumm…

Seek the Name, Seek the Fame Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 17898   Accepted: 9197 Description The little cat is so famous, that many couples tramp over hill and dale to Byteland, and asked the little cat to give names t…

 名字是法雷数列其实是欧拉phi函数              Farey Sequence Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 11246   Accepted: 4363 Description The Farey Sequence Fn for any integer n with n >= 2 is the set of irreducible rational numbers a/b with 0 <…