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solution_04.c
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77 lines (59 loc) · 1.58 KB
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/* Main function of the C program. */
#include <stdio.h>
#include <stdlib.h>
int calculateCombinations(int stairs);
int main()
{
int myStairs;
int possibleCombinations;
printf("Wie viele Stufen hat die Treppe? ");
scanf("%d", &myStairs);
possibleCombinations = calculateCombinations(myStairs);
printf("Bei %d Stufen gibt es %d Kombinationen.", myStairs, possibleCombinations);
/*
int i;
for (i = 0; i < 10; i++)
{
printf("Bei %d Stufen gibt es %d Möglichkeiten.\n", i + 1, calculateCombinations(i + 1));
}
*/
return EXIT_SUCCESS;
}
int calculateCombinations(int stairs)
{
if (stairs <= 0)
{
return 0;
}
else if (stairs == 1)
{
return 1;
}
else if (stairs == 2)
{
return 2;
}
//ab hier ist der Advanced Teil
else
{
return
calculateCombinations(stairs - 1) + //wenn ich 1 Schritt mache, dann alle Verbleibenden Kombinationen danach
calculateCombinations(stairs - 2); //wenn ich 2 Schtitte mache, dann alle verbleibenden Kombinationen danach
}
}
/*
Beispiele:
calculateCombinations(1);
=> 1
calculateCombinations(2);
=> 2
calculateCombinations(3);
=> calculateCombinations(2) + calculateCombinations(1)
=> 2 + 1
=> 3
calculateCombinations(4);
=> calculateCombinations(3) + calculateCombinations(2)
=> calculateCombinations(2) + calculateCombinations(1) + calculateCombinations(2)
=> 2 + 1 + 2
=> 5
*/