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Full Discussion: Map with struct as key and vector as value
Top Forums Programming Map with struct as key and vector as value Post 302917422 by Corona688 on Tuesday 16th of September 2014 02:14:56 PM
Old 09-16-2014
Quote:
Originally Posted by yifangt
Of course each unique student ID should be stored only once but not the student name, cases are students with same name but different ID number.
So?

Code:
names[1234]="Joe";
names[1235]="Joe";

Two students, same name, zero problems.

Quote:
Thanks anyway and I will try using your method first then go back to the map<struct, vector<struct>> method, only for practice purpose to make a running code. Thanks a lot again!
To make your structure usable in a map, you should define an 'operator <' for it.

Code:
class asdf {
public:
        bool operator <(const asdf &rhs) const {
                // Return true if this class is less than RHS,
                // false otherwise
        }
};

How to do so can be fiendishly complex for complicated data, since you first need a coherent definition of what 'less' even means when comparing two student class records.
 

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LEARN ABOUT DEBIAN

amc-note

AMC-NOTE(1)						       Auto Multiple Choice						       AMC-NOTE(1)

NAME

       AMC-note - computes marks after scans data capture for AMC multiple choice exams.

SYNOPSIS

       auto-multiple-choice note --data project-data-dir [--seuil threshold] [--grain granularity] [--arrondi rounding] [--notemin min]
			    [--notemax max] [--no-plafond | --plafond]

DESCRIPTION

       The AMC-note.pl command computes marks for all students from the scoring strategy extracted from the LaTeX source file by AMC-prepare(1)
       and from the data capture reports made by AMC-analyse(1).

       --data project-data-dir
	   gives the directory where data files are (see for example AMC-meptex(1)).

       --seuil threshold
	   gives the black ratio threshold (see AMC-analyse(1)) for deciding whether a box is ticked or not.

       --grain granularity --arrondi rounding
	   ask marks to be rounded to a multiple of granularity. If rounding is 'i', rounding is done from below (as with floor(3)). If rounding
	   is 'n', rounding is done to the nearest multiple of granularity. If rounding is 's', rounding is done from above (as with ceil(3)). For
	   example, with options "--grain 0.25 --arrondi s", mark 6.285 is rounded to 6.5.

       --notemin min
	   with this option, all marks below min will be replaced by min.

       --notemax max
	   gives the mark to associate to a sheet where all answers are correct. If not used, marks are not scaled.

       --plafond
	   with this option, all marks above max will be replaced by max.

       --debug file.log
	   gives a file to fill with debugging information.

       --postcorrect-student s --postcorrect-copy c
	   requests port-correction from the completed answer sheet identified by student and copy numbers. In post-correction mode, correct
	   answers are not extracted from the LaTeX source file, but taken from the answers given on this sheet.

AUTHORS

       Alexis Bienvenue <paamc@passoire.fr>
	   Main author

       Jean Berard
	   Translation from French

       Georges Khaznadar
	   Translation from French

COPYRIGHT

       Copyright (C) 2008-2012 Alexis Bienvenue

       This document can be used according to the terms of the GNU General Public License, version 2 or later.

Auto Multiple Choice 1.1.1					    06/19/2012							       AMC-NOTE(1)
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