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Verbesserung von len<2 da sonst strukturelle Fehler

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This commit is contained in:
Nicole Hanstein 2025-12-04 08:07:38 +01:00
parent 28e76fdbb7
commit c66935ad26
1 changed files with 17 additions and 13 deletions
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22
numbers.c
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@ -31,9 +31,7 @@ void createchecknumber(unsigned int len, unsigned int numbers[])
do
{
unsigned int value = 0;
value = (rand() % (len * 2) + 1);
unsigned int value = (rand() % (len * 2) + 1);
same = 0;
for (unsigned int j = 0; j < i; j++)
@ -56,6 +54,11 @@ void createchecknumber(unsigned int len, unsigned int numbers[])
unsigned int *createNumbers(unsigned int len)
{
if (len < 2) //sonst Index-Auswahl-Dauerschleife
{
return NULL;
}
if (RANDOM_SEED == 0)
{
srand(time(NULL));
@ -68,7 +71,7 @@ unsigned int *createNumbers(unsigned int len)
unsigned int *numbers = malloc(sizeof(unsigned int) * len);
if (numbers == NULL)
{
return 0;
return NULL; //
}
createchecknumber(len, numbers);
@ -78,9 +81,6 @@ unsigned int *createNumbers(unsigned int len)
do
{
i = 0;
j = 0;
i = rand() % len;
j = rand() % len;
@ -89,7 +89,6 @@ unsigned int *createNumbers(unsigned int len)
numbers[i] = numbers[j];
return numbers;
}
void sortnumbers(unsigned int numbers[], unsigned int len)
@ -109,9 +108,14 @@ void sortnumbers(unsigned int numbers[], unsigned int len)
}
}
// Returns only the only number in numbers which is present twice. Returns zero on errors.
unsigned int getDuplicate(const unsigned int numbers[], unsigned int len)
{
if (numbers == NULL || len < 2) // sonst Index-Auswahl-Dauerschleife
{
return 0;
}
unsigned int *copynumbers = malloc(sizeof(unsigned int) * len);
if (copynumbers == NULL)
{