Log Parsing

A log is the automatically produced and time$-$stamped documentation of events relevant to a particular system.

You are given a list of N logs in Apache Extended Log File Format $($explained below$).$ Each log is a string containing exactly $150$ characters. You are also given a date$-$time interval $[($start$\_$date. start time$),($fmish$\_$date, finish$\_$time$)].$

Print the number of logs that represent successful requests within the given date time Interval

Example of a log in the specified format

$172\mathrm{.}126\mathrm{.}12\mathrm{.}39$ AWAY $(10/07/2017$:$19$:$45$:$32)\_$PUT$\_/$bannerad$/$ad$5.$gif

Note

$*$The different fields in a log are separated by $2$ consecutive underscores Different parts of the same field are separated using one underscore"

$*$Each log is of length $151$ characters. The last character of each log is the newline character $"$In$".$ The remaining length of each log $(<150)$ is filled using underscores to make the length of the log as $151.$

Description of Fiels:

$1.$ User IP Address

$2.$ RFC$931-($used to log the domain for multi$-$homed web servers$)3.$ Date$/$Time $-$ the Time is in $24$ hr format

$4.$ Action The particular operation of the hit $($this is specified in

quotes$)5.$ Return Code $-$ The return code indicates whether or not the

action was successful etc. $($mentioned below$)$

$6.$ Size $($of file sent$)$

$7.$ Browser$/$Platform $-$ The web browser and platform used by the

user accessing your site

A request is said to be successful if it's Return Code within the range $(400,599]$

does not lie

The start date and finish$\_$date are given in the dd$/$mm$/$yyyy format.

A request is said to be successful if it's Return Code does not lie within the range $(400,599).$

The start date and finish$\_$date are given in the dd$/$mm$/$yyyy format.

The start time and finish$\_$time are given in the standard $24$ hr clock format $($hh:mm:ss$).$ These times are given in GMT$.$

Task

Q

Pint the count of successful logs which lie within the given date$-$time

Example

$122\mathrm{.}106\mathrm{.}125\mathrm{.}155$ HOME $[21/06/2012$:$15$:$43$:$50]\_$'PUT$\_/$bannerad$/$ad$.$ht $138\mathrm{.}72\mathrm{.}50\mathrm{.}156$ HOME $[01/05/2005$:$23$:$48$:$33]\_$GET$\_/$bannerad$/$ad$5.$g $167\mathrm{.}82\mathrm{.}255\mathrm{.}158\_$HOME$\_[05/07/2013$:$16$:$31$:$19]\_$GET$\_/$bannerad$/$ad$7.$gi $55\mathrm{.}136\mathrm{.}240\mathrm{.}162$ HOME$\_[15/08/2007$:$23$:$42$:$18)\_$GET$\_/$bannerad$/$ad$5.18\mathrm{.}220\mathrm{.}176\mathrm{.}61$ HOME$\_\_(08/08/2002$:$05$:$30$:$00)$ GET$\_/$bannerad$/$ad$.$ht

Given Time: $[(28/08/200104$:$28$:$47)(03/09/2008","20$:$29$:$00)$

Output

$3$

Approach

The following $3$ requests lie within the given time range, and are

successful.

HOME $(01/05/2005$:$23$:$48$:$33]\_$GET$\_/$bannerad$/$ad$5.$g

$138\mathrm{.}72\mathrm{.}50\mathrm{.}156$

$55\mathrm{.}136\mathrm{.}240\mathrm{.}162$ HOME $[15/08/2007$:$23$:$42$:$18]\_$GET$\_/$bannerad$/$ad$5..$

$18\mathrm{.}220\mathrm{.}176\mathrm{.}61$ HOME $108/08/2002$:$05$:$30$:$00]$ "GET$\_/$bannerad$/$ad$.$ht

Hence, the answer is

Function description

Complete the function solve provided in the editor. This function takes the following $5$ parameters and returns the required answer:

logs$\_$list: A list $($vector$)$ of logs$.$ Each member of the list is a string of $151$ characters, representing a log$.$

start$\_$date: The starting date $($a string$)$ in $"$dd$/$mm$/$yyyy$"$ format.

start time: The starting time $($a string$)$ in standard $24-$hr format

$($hh:mm:ss$).$

finish$\_$date: The finish date $($a string$)$ in $"$dd$/$mm$/$yyyy$"$ format.

finish$\_$time: The finish time $($a string$)$ in standard $24-$hr format

$($hh:mm:ss$).$

Input format

Note: This is the input format that you must use to provide custom Input $($available above the Compile and Test button$).$

The first line contains N$,$ the number of logs in the list

The next lines contain strings $($one in each line$)($each string

has $151$ characters$),$ denoting logs$.$

The third line contains $4$ space$-$separated strings, denoting the start date, start time, finish$\_$date and finish$\_$time in the specified formats.

Output format

Print the answer in the given format.

The first and only line contains an integer N$,$ the count of

successful logs within the given time frame.

Constraints

$1$