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<title>Lösungsskizzen &#8212; SNP Labs documentation</title>
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<section class="tex2jax_ignore mathjax_ignore" id="losungsskizzen">
<h1>Lösungsskizzen<a class="headerlink" href="#losungsskizzen" title="Permalink to this headline"></a></h1>
<section id="aufgabe-1">
<h2>Aufgabe 1<a class="headerlink" href="#aufgabe-1" title="Permalink to this headline"></a></h2>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>/**
* Tage Pro Monat
*
* Das Programm liest einen Monat (1-12) und ein Jahr (1600-2400) ein und
* gibt die Anzahl der Tage dieses Monats aus.
*
* @author Gerrit Burkert, Adaptation bazz
* @version 15-FEB-2013, 16-OCT-2017, 17-OCT-2019, 16-FEB-2022
*/
#include &lt;stdio.h&gt;
#include &lt;stdlib.h&gt;
#define ERROR_IN_MONTH 1
#define ERROR_IN_YEAR 2
///// Student Code
// Konstante Werte fuer die Monate
// ===============================
enum { JAN=1, FEB, MAR, APR, MAI, JUN, JUL, AUG, SEP, OKT, NOV, DEZ };
// Eingabe pruefen (0 ist vom atoi als Fehelcode verwendet und darf nicht verwendet werden)
// ===============
int gibIntWert(char *name, int von, int bis) {
int wert;
char wertS[20]; //
do {
printf(&quot;%s: &quot;, name);
fgets(wertS, 20, stdin);
wert = atoi(wertS);
if (wert &lt; von || wert &gt; bis) {
printf(&quot;Der Wert muss zwischen %d und %d sein.\n&quot;, von, bis);
} else {
break;
}
} while(1);
return wert;
}
// Schaltjahr bestimmen
// ====================
int istSchaltjahr(int jahr){
if ( (jahr % 400 == 0) || ( (jahr %100 != 0) &amp;&amp; (jahr % 4 ==0) ) )
return 1;
else
return 0;
}
// Berechnung Anzahl Tage pro Monat
// ================================
int tageProMonat(int jahr, int monat) {
int anzTage;
// Tage pro Monat bestimmen
switch (monat) {
// Monate mit 31 Tagen
case JAN: case MAR: case MAI: case JUL: case AUG: case OKT: case DEZ:
anzTage = 31;
break;
// Monate mit 30 Tagen
case APR: case JUN: case SEP: case NOV:
anzTage = 30;
break;
// Februar: 28 oder 29 Tage
case FEB:
if (istSchaltjahr(jahr)) {
anzTage = 29;
} else {
anzTage = 28;
}
break;
}
return anzTage;
}
///// END Student Code
int main (int argc, char *argv[]) {
int monat, jahr;
// Monat einlesen und Bereich ueberpruefen
monat = gibIntWert(&quot;Monat&quot;, 1, 12);
jahr = gibIntWert(&quot;Jahr&quot;, 1600, 9999);
// Ausgabe zum Test
printf(&quot;Monat: %d, Jahr: %d \n&quot;, monat, jahr);
// Ausgabe zum Test (hier mit dem ternaeren Operator &quot;?:&quot;)
printf(&quot;%d ist %s Schaltjahr\n&quot;, jahr, istSchaltjahr(jahr) ? &quot;ein&quot; : &quot;kein&quot;);
// Ausgabe
printf(&quot;Der Monat %02d-%d hat %d Tage.\n&quot;, monat, jahr, tageProMonat(jahr, monat));
return 0;
}
</pre></div>
</div>
</section>
<section id="aufgabe-2">
<h2>Aufgabe 2<a class="headerlink" href="#aufgabe-2" title="Permalink to this headline"></a></h2>
<p>Alter bestehender Boilerplate Code</p>
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<li class="toctree-l1"><a class="reference internal" href="../P01_Erste_Schritte_mit_C/README.html">01 - Erste Schritte mit C</a></li>
<li class="toctree-l1"><a class="reference internal" href="README.html">02: Funktionen, Datentyp “enum”</a></li>
<li class="toctree-l1"><a class="reference internal" href="../P03_Bit_Operation_struct_typedef/README.html">03 - Bit Operationen, Struct, Typedef</a></li>
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