last four digits of ssn

The simplest format is as follows:a=1.333333344, save this number to 3 digits after the decimal point'%.03f '%aHowever, the result returned will be a string, shown as:' 1.333 'So just add a float () to the front to return to the normal floating point number, namely:Float ('%.03f '%a)But if you enter'%03f '%aThere's no that '. 'The return result is changed toThe decimal point itself actually represents a supplementary meaning.In addition, about integer

Use two pointers, moving relative to the tail of the array;Loop End Condition: Head and tail overlap alive head behind tailLeft pointer right shift condition: Current number is oddRight pointer left shift condition: Current number is evenWhen and only if the left pointer is even, the right hand is odd, swapping the value of two pointersThis topic notes the extension, reuse of function functions. PackageOffer ;Importjava.util.Arrays;/*face question 14: Adjust the array order so that the odd numbe

In the software company's interview, often meet the request to rearrange the array, so that all the odd number is in the even before the problem is generally three versions1 all odd digits can be in the even before, this kind of problem is the simplest one2 odd even numbers are re-sorted by size3 odd even numbers remain in the original array in the same orderWhere 2 and 3 are implemented in the same way, now the first version is implemented, and the o

Day4 regular expression, regular expression 4 digits Syntax: Regular Expressions are functions that process strings. We also have many such formulas in Excel functions. Because I have learned some Excel statements, let's take a look at the different methods. Import re # import re module to process the regular expression Module P = re. compile ("^ [0-9]") # generate the regular object to be matched. ^ indicates the regular object to be matched from the

The problem that the decimal type of linq is saved to the database is saved to only two digits after the decimal point, linqdecimal The problem of saving a decimal type to data today has plagued me for a long time, finally, a small setup problem is solved ···· If you don't talk much about it, just ask the question and say the answer: Problem: when using EF DbContext To Save decimal type data to the database, by default, only the first two decimal plac

We can see that many people want to retain the decimal point after the number, but most of them write a function to intercept the number, and consider rounding it down. It is quite complicated to write it. In fact, the javascript Number object has a method to retain decimal places: toFixed, which is the Number after rounding. I was worried that IE6 did not support this method at one time. As shown in MDN, this method was implemented only by javascript1.5. I tried it in IE6 and it is fully suppor

12 weeks (separate the single digits in a positive integer) /** Copyright (c) 2014, computer College, Yantai University* All rights reserved.* File name: Separate the single digits in a positive integer. * Author: Wang Zhong* Completion date: 2014.11.10* Version: v1.0** Problem description: Input 1234, output 4 3 2 1 * Input Description: enter a string of numbers. * Program output: Separate the number o

Description:Converts a decimal non-negative integer with a length of more than 100 digits into a binary number. Input:Multiple groups of data, each behavior has a decimal non-negative integer of no more than 30 digits.(Note that the number of decimal numbers may be 30, not an integer of 30bits) Output:The number of binary numbers output for each row. Sample input:0138 sample output:01111000 analysis: this n

number of decimal digits reserved Math.Round (x*100)/100Rounding a floating-point number to 2 digits after the decimal pointCan be implemented to retain two decimal places Force two decimal places to be retained function ToDecimal2(x ) { var F = parsefloat (x); if (IsNaN (f)) { return false; } var F = Math.Round (x* - )/ - ; var s = f.tostring (); var RS = S.index

Title Description:Given a non-negative integer num , repeatedly add all its digits until the result have only one digit.For example:Given num = 38 , the process is like: 3 + 8 = 11 , 1 + 1 = 2 . Since have only one 2 digit, return it.Problem Solving Ideas:Assuming that the number entered is a 5 digit num, NUM's members are A, B, C, D, E, respectively.Has the following relationship: num = A * 10000 + b * + + c * + + D * + EThat is: num = (A + B + C + D

LeetCode 258 Add Digits (Number Addition, number root)Translation Given a non-negative integer number, repeat all its numbers until the last result is only one digit. For example, given sum = 38, this process is like: 3 + 8 = 11, 1 + 1 = 2, because 2 only has one digit, so it is returned. Then, can you complete it in O (1) time without repeating or recursion? Original Given a non-negative integer num, repeatedly add all its

JS fill in the bank card number every four digits with a space, js bank card 1. Native js writing !function () { document.getElementById('bankCard').onkeyup = function (event) { var v = this.value; if(/\S{5}/.test(v)){ this.value = v.replace(/\s/g, '').replace(/(.{4})/g, "$1 "); } };}(); 2. jQuery writing The above section describes how to fill in a bank card number with a space every four digits