- 博客(12)
- 收藏
- 关注
RSS订阅原创 java常用函数
1.用于进制转换// s:输入的数字 x:原数的进制 y:要转化成的进制 public static String Transform(String s,int x,int y) { return new java.math.BigInteger(s,x).toString(y); }2.字符串与数字的转换int a=Integer.value...
2019-09-11 19:00:14
289
原创 大数
http://acm.hdu.edu.cn/showproblem.php?pid=1261import java.util.Scanner;import java.math.BigInteger;class Main{ public static void main(String[] args) { Scanner cin=new Scanner(System.in);...
2019-09-08 21:08:30
214
原创 字符串和数字的转换
1 利用stringstream 添加头文件 #include<sstream> 数字转字符串 #include <string> #include <sstream> int main(){ double a = 123.32; string res; stringstream ss; ...
2019-08-18 11:09:35
665
原创 自然数的拆分问题
题目描述输入自然数n，然后将其拆分成由若干数相加的形式，参与加法运算的数可以重复。输入一个整数n，指待拆分的自然数n(l≤n≤30)。输出若干行，每一行是一个数的加法式子。样例输入复制样例数据4样例输出1+31+1+21+1+1+12+2按字典序 (回溯）#include<bits/stdc++....
2019-08-17 11:35:19
3281
原创 poj1256 Anagram (全排列）
AnagramTime Limit: 1000MS Memory Limit: 10000K Total Submissions: 22698 Accepted: 8955 DescriptionYou are to write a program that has to generate all possible words from a g...
2019-08-15 13:07:01
298
原创 2-sat（hdu3062）
2-sat 参考：https://www.cnblogs.com/L-Excalibur/p/8504893.html例题hdu3062 http://acm.hdu.edu.cn/showproblem.php?pid=3062dfs暴力做法#include<bits/stdc++.h>using namespace std;vector<int>f[2...
2019-08-12 11:50:25
203
原创 读入带空格的字符串
对于char类型带空格字符串：gets() gets() 不能被告知输入缓冲区的大小， 因此不能避免缓冲区的溢出。对应输出puts(); fgets() fgets(str,100,stdin); 输出fputs(str,stdout)； [第二个参数是要读取的字符串长度] scanf("%[^\n]",str) 遇回车结束。 cin.get(str,100) ...
2019-08-10 09:10:46
2894
转载 极角逆时针排序
#include<iostream>#include<cstdio>#include<algorithm>#include<cstring>#include<cmath>using namespace std;struct node{ int x,y;};node p[55];int cross(node a...
2019-08-08 15:18:54
374
原创 POJ2079&&HDU2202Triangle(凸包和旋转卡壳）
凸包参考资料：https://blog.youkuaiyun.com/qq_30974369/article/details/76405546旋转卡壳参考资料：https://www.cnblogs.com/shangyu/p/3873876.htmlPOJ2079TriangleTime Limit: 3000MS Memory Limit: 30000K Total...
2019-08-08 14:16:30
232
原创 Intersecting Lines（两条线段的位置关系）
平行不共线平行共线相交并求交点Intersecting LinesWe all know that a pair of distinct points on a plane defines a line and that a pair of lines on a plane will intersect in one of three ways: 1) no intersectio...
2019-08-07 20:37:22
722
原创 Segments(直线和线段的投影）
Given n segments in the two dimensional space, write a program, which determines if there exists a line such that after projecting these segments on it, all projected segments have at least one point ...
2019-08-07 19:31:33
1540
原创 TOYS （向量叉积）
Calculate the number of toys that land in each bin of a partitioned toy box.Mom and dad have a problem - their child John never puts his toys away when he is finished playing with them. They gave Joh...
2019-08-07 16:29:03
407
空空如也
空空如也
TA创建的收藏夹 TA关注的收藏夹
TA关注的人