144 lines
3.5 KiB
C++
144 lines
3.5 KiB
C++
#include<iostream>
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#include<conio.h>
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#include<string>
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#include<sstream>
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#include<cstdlib>
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#include<ctime>
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void SelectionSort(long double *array, short amount);
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void SelectionSort(int *array, short amount);
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void program();
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void printArray(long double *array, short amount);
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void printArray(short *array, short amount);
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int main()
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{
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std::cout << "Gib die Anzahl der Zahlen ein: ";
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program();
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getch();
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return(0);
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}
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void SelectionSort(long double *array, short amount)
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{
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std::cout << "\n";
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printArray(array, amount);
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for(unsigned short idx = 0; idx<amount-1; idx++)
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{
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unsigned short indexMin = idx;
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for(unsigned short idx2 = idx+1; idx2<amount; idx2++) if(array[idx2]<array[indexMin]) indexMin = idx2;
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if(indexMin!=idx)
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{
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long double temp = array[idx];
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array[idx] = array[indexMin], array[indexMin] = temp;
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}
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printArray(array, amount);
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}
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}
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void SelectionSort(short *array, short amount)
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{
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std::cout << "\n";
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printArray(array, amount);
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for(unsigned short idx = 0; idx<amount-1; idx++)
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{
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unsigned short indexMin = idx;
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for(unsigned short idx2 = idx+1; idx2<amount; idx2++) if(array[idx2]<array[indexMin]) indexMin = idx2;
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if(indexMin!=idx)
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{
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long double temp = array[idx];
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array[idx] = array[indexMin], array[indexMin] = temp;
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}
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printArray(array, amount);
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}
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}
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void program()
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{
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std::string input;
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short amount = 1;
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do
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{
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getline(std::cin, input);
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std::stringstream(input) >> amount;
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if(amount >= USHRT_MAX) std::cerr << "Error: Die eingegebene Anzahl ist zu gro\xE1 oder klein. Gib eine andere Anzahl ein: ";
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}while(amount>=SHRT_MAX || amount<2);
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do
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{
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std::cout << "\nM\x94 \bchtest du mit zuf\x84lligen Zahlen arbeiten? y/n ";
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getline(std::cin, input);
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if(input != "y" && input != "Y" && input == "n" && input == "N") std::cerr << "Error: Diese Eingabe ist unzulässig. ";
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}while(input != "y" && input != "Y" && input == "n" && input == "N");
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if(input == "y" || input == "Y")
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{
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try
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{
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short *array = new short[amount];
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srand(time(0));
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for(unsigned short idx = 0; idx < amount; array[idx++] = rand()%1000);
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SelectionSort(array, amount);
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delete[] array;
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}
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catch(std::bad_alloc& ba)
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{
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std::cerr << "Error: Es konnte kein Array dieser Gr\x94\xE1 \be erzeugt werden. Gib eine andere Anzahl ein: ";
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program();
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}
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catch(std::exception& e)
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{
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std::cerr << "Error: Beim Erstellen des Arrays kam es zu einem unbekannten Fehler. Versuche es mit einer anderen Anzahl: ";
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program();
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}
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}
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else
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{
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try
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{
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long double *array = new long double[amount];
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for(unsigned short idx = 0; idx < amount; std::stringstream(input) >> array[idx++])
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{
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std::cout << "Gib die " << idx+1 << ". Zahl ein: ";
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getline(std::cin,input);
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}
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SelectionSort(array, amount);
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delete[] array;
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}
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catch(std::bad_alloc& ba)
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{
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std::cerr << "Error: Es konnte kein Array dieser Gr\x94\xE1 \be erzeugt werden. Gib eine andere Anzahl ein: ";
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program();
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}
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catch(std::exception& e)
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{
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std::cerr << "Error: Beim Erstellen des Arrays kam es zu einem unbekannten Fehler. Versuche es mit einer anderen Anzahl: ";
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program();
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}
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}
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}
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void printArray(long double *array, short amount)
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{
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for(unsigned short idx = 0; idx+1<amount; idx++) std::cout << array[idx] << ", ";
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std::cout << array[amount-1] << "\n";
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getch();
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}
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void printArray(short *array, short amount)
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{
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for(unsigned short idx = 0; idx+1<amount; idx++) std::cout << array[idx] << ", ";
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std::cout << array[amount-1] << "\n";
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getch();
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}
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