1073 Scientific Notation (20 分)   Scientific notation is the way that scientists easily handle very large numbers or very small numbers. The notation matches the regular expression [+-][1-9].[0-9]+E[+-][0-9]+ which means that the integer portion has…

Scientific notation is the way that scientists easily handle very large numbers or very small numbers. The notation matches the regular expression [+-][1-9].[0-9]+E[+-][0-9]+ which means that the integer portion has exactly one digit, there is at lea…

科学计数法是科学家用来表示很大或很小的数字的一种方便的方法,其满足正则表达式 [+-][1-9].[0-9]+E[+-][0-9]+,即数字的整数部分只有 1 位,小数部分至少有 1 位,该数字及其指数部分的正负号即使对正数也必定明确给出. 现以科学计数法的格式给出实数 A,请编写程序按普通数字表示法输出 A,并保证所有有效位都被保留. 输入格式: 每个输入包含 1 个测试用例,即一个以科学计数法表示的实数 A.该数字的存储长度不超过 9999 字节,且其指数的绝对值不超过 9999. 输出格式…

Scientific notation is the way that scientists easily handle very large numbers or very small numbers. The notation matches the regular expression [+-][1-9].[0-9]+E[+-][0-9]+ which means that the integer portion has exactly one digit, there is at lea…

题意: 输入科学计数法输出它表示的数字. AAAAAccepted code: #define HAVE_STRUCT_TIMESPEC #include<bits/stdc++.h> using namespace std; string s; ]; int main(){ ios::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); cin>>s; int n=s.size(); ]=='-') cout<<…

题目如下: Scientific notation is the way that scientists easily handle very large numbers or very small numbers. The notation matches the regular expression [+-][1-9]"."[0-9]+E[+-][0-9]+ which means that the integer portion has exactly one digit, th…

题意:给出科学计数法的格式的数字A,要求输出普通数字表示法,所有有效位都被保留,包括末尾的0. 分两种情况,一种E+,一种E-.具体情况具体分析╮(╯_╰)╭ #include <iostream> #include <cstdio> #include <algorithm> #include <string.h> #include <cmath> #define POSITIVE 1 #define NEGATIVE 2 using names…

简单模拟题. #include<cstdio> #include<cstring> #include<cmath> #include<vector> #include<map> #include<stack> #include<queue> #include<string> #include<algorithm> using namespace std; ]; int p; int main() {…

1073 Scientific Notation (20 分)   Scientific notation is the way that scientists easily handle very large numbers or very small numbers. The notation matches the regular expression [+-][1-9].[0-9]+E[+-][0-9]+ which means that the integer portion has…

1073 Scientific Notation (20 分) Scientific notation is the way that scientists easily handle very large numbers or very small numbers. The notation matches the regular expression [+-][1-9].[0-9]+E[+-][0-9]+ which means that the integer portion has ex…

1073 Scientific Notation(20 分) Scientific notation is the way that scientists easily handle very large numbers or very small numbers. The notation matches the regular expression [+-][1-9].[0-9]+E[+-][0-9]+ which means that the integer portion has exa…

#include <iostream> using namespace std; string a; int expo; int dotPos; int expoPos; int i; int main(){ cin>>a; if(a[0]=='+'||a[0]=='-'){ if(a[0]=='-'){cout<<"-";} a.erase(a.begin()); } for(i=0;i<a.size();i++){ if(a[i]=='.'…

题意: 给出科学计数法的形式,转化成常规的表示,要求保留所有的有效位数 思路:纯粹的字符串处理问题,注意边界条件即可.如+1.23E+02这种,转化后是123,既不需要补0,也不需要添加小数点. 代码: #include <iostream> #include <string> using namespace std; string change(string str) { string ans,sign; ]=='-') sign="-"; str.erase…

Source: PAT A1073 Scientific Notation (20 分) Description: Scientific notation is the way that scientists easily handle very large numbers or very small numbers. The notation matches the regular expression [+-][1-9].[0-9]+E[+-][0-9]+ which means that…

Scientific notation is the way that scientists easily handle very large numbers or very small numbers. The notation matches the regular expression [+-][1-9].[0-9]+E[+-][0-9]+ which means that the integer portion has exactly one digit, there is at lea…

1019 General Palindromic Number (20 分) 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…

1136 A Delayed Palindrome(20 分) Consider a positive integer N written in standard notation with k+1 digits a​i​​ as a​k​​⋯a​1​​a​0​​ with 0≤a​i​​<10 for all i and a​k​​>0. Then N is palindromic if and only if a​i​​=a​k−i​​ for all i. Zero is written…

PAT (Advanced Level) Practice 1019 General Palindromic Number (20 分) 凌宸1642 题目描述: 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…

    This is a known issue, you can find more in internet. Excel will treat text(can display with number) more than 11 numbers, it will convert to scientific notation display. It is not an issue now, but if your text content length is more than 15, th…

Poiuyt_cyc 博客园首页新随笔联系订阅管理随笔 - 11  文章 - 0  评论 - 111 抛弃EF,20分构建一个属于自己的ORM框架 相信EF大家都不陌生了,因为数据库表跟程序实体是一一对应的原因,我们能够通过lambda这种函数式的编程方式进行操作数据库,感觉非常清晰明了.与我们直接写SQL相比,lambda是强类型,拥有更好的扩展性,伸缩性,而且编程更加的方便,快捷..下面我们就基于Expression和lambda来与大家构建一个属于自己的ORM框架. 思路的话很简单,就是将…

6-2 邻接表存储图的广度优先遍历(20 分) 试实现邻接表存储图的广度优先遍历. 函数接口定义: void BFS ( LGraph Graph, Vertex S, void (*Visit)(Vertex) ); 其中LGraph是邻接表存储的图,定义如下: /* 邻接点的定义 */ typedef struct AdjVNode *PtrToAdjVNode; struct AdjVNode{ Vertex AdjV; /* 邻接点下标 */ PtrToAdjVNode Next; /*…

后面的测试点过不去,两个错误一个超时. 目前未解决   L1-009 N个数求和 (20 分)   本题的要求很简单,就是求N个数字的和.麻烦的是,这些数字是以有理数分子/分母的形式给出的,你输出的和也必须是有理数的形式. 输入格式: 输入第一行给出一个正整数N(≤100).随后一行按格式a1/b1 a2/b2 ...给出N个有理数.题目保证所有分子和分母都在长整型范围内.另外,负数的符号一定出现在分子前面. 输出格式: 输出上述数字和的最简形式 —— 即将结果写成整数部分 分数部分,其中分数部…

L1-023 输出GPLT (20 分) 给定一个长度不超过10000的.仅由英文字母构成的字符串.请将字符重新调整顺序,按GPLTGPLT....这样的顺序输出,并忽略其它字符.当然,四种字符(不区分大小写)的个数不一定是一样多的,若某种字符已经输出完,则余下的字符仍按GPLT的顺序打印,直到所有字符都被输出. 输入格式: 输入在一行中给出一个长度不超过10000的.仅由英文字母构成的非空字符串. 输出格式: 在一行中按题目要求输出排序后的字符串.题目保证输出非空. 输入样例: pcTclnG…

1074 宇宙无敌加法器 (20 分) 地球人习惯使用十进制数,并且默认一个数字的每一位都是十进制的.而在 PAT 星人开挂的世界里,每个数字的每一位都是不同进制的,这种神奇的数字称为“PAT数”.每个 PAT 星人都必须熟记各位数字的进制表,例如“……0527”就表示最低位是 7 进制数.第 2 位是 2 进制数.第 3 位是 5 进制数.第 4 位是 10 进制数,等等.每一位的进制 d 或者是 0(表示十进制).或者是 [2,9] 区间内的整数.理论上这个进制表应该包含无穷多位数字,但从实…

1044 火星数字 (20 分) 火星人是以 13 进制计数的: 地球人的 0 被火星人称为 tret. 地球人数字 1 到 12 的火星文分别为:jan, feb, mar, apr, may, jun, jly, aug, sep, oct, nov, dec. 火星人将进位以后的 12 个高位数字分别称为:tam, hel, maa, huh, tou, kes, hei, elo, syy, lok, mer, jou. 例如地球人的数字 29 翻译成火星文就是 hel mar:而火星文…

1035 Password (20 分) To prepare for PAT, the judge sometimes has to generate random passwords for the users. The problem is that there are always some confusing passwords since it is hard to distinguish 1 (one) from l (L in lowercase), or 0 (zero) fr…

package com.Summer_0420.cn; /** * @author Summer * 获取数值型数组中大于60的元素个数 * 给数值型数组中不足60分的加20分 */ public class TestMethod02 { public static void main(String[] args) { int [] a = {1,35,60,80,75,123,156,32,1}; show(a); } private static void show(int[] a) { i…

1041 Be Unique (20 分) Being unique is so important to people on Mars that even their lottery is designed in a unique way. The rule of winning is simple: one bets on a number chosen from [1,10​4​​]. The first one who bets on a unique number wins. For…

1054 The Dominant Color (20 分) Behind the scenes in the computer's memory, color is always talked about as a series of 24 bits of information for each pixel. In an image, the color with the largest proportional area is called the dominant color. A st…

1027 Colors in Mars (20 分) People in Mars represent the colors in their computers in a similar way as the Earth people. That is, a color is represented by a 6-digit number, where the first 2 digits are for Red, the middle 2 digits for Green, and the…