83 lines
2.0 KiB
C
83 lines
2.0 KiB
C
#include <stdlib.h>
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#include <stdio.h>
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#include <stdbool.h>
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#include <string.h>
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#define BUFFER_SIZE 64
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#define STUDENT_SIZE 32
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struct studentApplication
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{
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char name[STUDENT_SIZE];
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};
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void setMemoryOfArrays(char* processedName, struct studentApplication* student)
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{
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//prednastavi pamat mnozinovych premien
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processedName[0] = '\0';
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for (int i = 0; i < STUDENT_SIZE; i++)
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{
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student[i].name[0] = '\0';
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}
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}
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int compare(const void* p1, const void* p2)
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{
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//casting, resp. premena dat. typu pointerov na ich spravny typ
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//nakolko qsort() pozaduje od porovnavaciej funkcie, aby akceptovala pointery s lubovolnym dat. typom (const void*)
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struct studentApplication *s1 = (struct studentApplication *)p1;
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struct studentApplication *s2 = (struct studentApplication *)p2;
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return strcmp(s1->name, s2->name);
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}
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int main()
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{
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//helper/pomocne lokalne premeny
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int studentsAmount;
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struct studentApplication student[STUDENT_SIZE];
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int i = 0;
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char processedName[BUFFER_SIZE];
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char newLineSymbol = '\n';
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char line[BUFFER_SIZE];
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memset(line,0, sizeof(line));
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setMemoryOfArrays(processedName, student);
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while (fgets(line, BUFFER_SIZE, stdin) != NULL)
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{
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if (studentsAmount == 0)
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{
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if(sscanf(line, "%d", &studentsAmount) == 1) { continue; }
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}
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else if(sscanf(line, "%s", processedName) == 1)
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{
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strcpy(student[i].name, processedName);
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strncat(student[i].name, &newLineSymbol, 1);
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i++;
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}
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}
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if (studentsAmount == 0)
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{
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puts("Nespravny vstup");
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return 0;
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}
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qsort(student, STUDENT_SIZE, sizeof(struct studentApplication), compare);
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// vypis vysledkov:
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for (int i = 0; i < studentsAmount; i++)
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{
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puts("Prijati studenti:");
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puts(student[i].name);
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}
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for (int i = studentsAmount; student[i].name[0] != '\0'; i++)
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{
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puts("Neprijati studenti:");
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puts(student[i].name);
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}
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return 0;
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}
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