ZSIzadanie3/zsiKOD

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <ctype.h>

/* run this program using the console pauser or add your own getch, system("pause") or input loop */

int compare(const void *a, const void *b)
{
    const char **pa,**pb;

    pa = (const char **)a;
    pb = (const char **)b;
    return( strcmp(*pa,*pb) );
}

int main() {
	
	int pocet_slov,pocet_znakov=0,i=0,count=0,number=0;
	bool zhoda=false;
	char* pole_smernikov[1000]={0};
	char line[1000];
	
	char cislo[1000];
	fgets(cislo,1000,stdin);
	int dlzka=strlen(cislo);
	for(i=0;i<dlzka;i++){
		if(isdigit(cislo[i])){
			number=number*10;
			number+=cislo[i]-'0';
		}
		else if(cislo[i]==' ' || cislo[i]=='\n' || cislo[i]=='	'){
			;
		}
		else{
			puts("Nespravny vstup");
			return 0;
		}
	}
	//printf("prijaty: %d\n",number);
	if(number==0){
		puts("Nespravny vstup");
		return 0;
	}
	while(fgets(line,1000,stdin)!=NULL){
		if(strlen(line)<1){
			return 0;
		}
		pocet_znakov=strlen(line);
		//printf("Pocet znakov: %d\n",pocet_znakov);
		for(i=0;i<pocet_znakov;i++){
			if(line[i]>='A' && line[i]<='Z')count++;
			if(line[i]>='a' && line[i]<='z')count++;
		}
		if(count==0){
			//printf("Koniec");
			break;
		}
		int size = (int)strlen(line);
		size--;
		while(size!=-1){
			if(line[size]==' ' || line[size]=='\n' || line[size]=='	'){
				line[size]='\0';
			}
			else{
				break;
			}
			size--;
		}
		//printf("Retazec: #%s#\n",line);
		for(i=0;i<pocet_slov;i++){
			char *str1=pole_smernikov[i];
			if(strcmp(str1,line)==0)zhoda=true;
		}
		if(!zhoda){
		//	printf("Pridavam!\n");
			pole_smernikov[pocet_slov] = malloc(pocet_znakov + 1);
			memcpy(pole_smernikov[pocet_slov],line,pocet_znakov + 1);
			pocet_slov += 1;
		}
		count=0;
		zhoda=false;
	}
	if(pocet_slov==0){
		puts("Ziadne prihlasky");
		return 0;
	}
	
	
	
	
	for (i = 0; i < pocet_slov; i++){
		
		int size = (int)strlen(pole_smernikov[i]);
		size--;
		while(size!=0){
			if(pole_smernikov[i][size]==' ' || pole_smernikov[i][size]=='\n' || pole_smernikov[i][size]=='	'){
				pole_smernikov[i][size]='\0';
			}
			else{
				break;
			}
			size--;
		}
    	//printf("%d:	  %s\n",i+1,pole_smernikov[i]);
	}
	
	
	qsort(pole_smernikov,pocet_slov,sizeof(char *),compare);
	
	
	//printf("Sorted:\n");
	if(pocet_slov<=number && number>0){
		puts("Prijati studenti:");
		for (i = 0; i < pocet_slov; i++){
    		printf("%s\n",pole_smernikov[i]);
		}
	}
	else{
		puts("Prijati studenti:");
		for (i = 0; i < number; i++){
    		printf("%s\n",pole_smernikov[i]);
		}
		puts("Neprijati studenti:");
		for (i = number; i < pocet_slov; i++){
    		printf("%s\n",pole_smernikov[i]);
		}
	}
	
	for (i = 0; i < pocet_slov; i++){
    	free(pole_smernikov[i]);
	}
	
	return 0;
}