usaa21/cv1/program.c

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

struct item {
   char  name[50];
   float  price;

};

struct backup_item {
   char  name[50];
   float  price;

};

#define NUMBER_OF_MEALS 20

int main(){
    char sign[] = {'o','i','z','e','a','s','b','t','b','q'};
    char secret[]={'0','1','2','3','4','5','6','7','8','9'};
    
    char input_search[50];
    //initialize input_search
    struct item menu[NUMBER_OF_MEALS];
    struct backup_item backup_menu[NUMBER_OF_MEALS];
    //initialize menu
    //for(int i = 0; i < NUMBER_OF_MEALS; i++){
    memset(menu, 0,sizeof(struct item)*NUMBER_OF_MEALS);
    memset(backup_menu, 0,sizeof(struct item)*NUMBER_OF_MEALS);
        //printf("%s\n",menu->name);
        //menu[i] = {'c','c'};
        
    //}
    
    printf("Zadaj hladanu surovinu:\n");
    fgets (input_search, 20, stdin);
    
    printf("Zadaj jedalny listok:\n");
    
    char temp[10];
    //initialize temp
    int meal_counter = 0;
    //load menu
    char* ptr = NULL; 
    while(1){
        ptr = fgets (menu[meal_counter].name, 20, stdin);
        if(ptr == NULL){
	    break;
	}
	if(menu[meal_counter].name[0] == '\n'){
            break;
        }
        fgets (temp, 20, stdin);
        menu[meal_counter].price = strtof(temp, NULL);
        
        
        meal_counter++;
        
    }
    //make copy of menu 
    for (int i = 0 ; i < meal_counter; i++){
        strcpy(backup_menu[i].name, menu[i].name);
        backup_menu[i].price = menu[i].price;
    }
    /*optimize backup_menu*/
    //each item.name
    for(int i = 0 ; i < meal_counter; i++){ 
        //each item.name letter
        for(int j = 0; j < strlen(backup_menu[i].name)-1; j++){ 
            //each letter in secret[]
            for (int k = 0; k < 10; k++){   
                //compare secret letter with item.name letters
                if(backup_menu[i].name[j] == secret[k]){    
                    //swap letter in item.name with sign[] if match
                    backup_menu[i].name[j] = sign[k];
                }
            }
        }
        
    }
 
 
    int input_search_size = strlen(input_search);
    int match_counter = 1;
    int new_start = 0;
    //find match in menu
    for(int i = 0; i < meal_counter; i++){
        new_start = 0;
        match_counter = 1;
        //loop through each item name
        for(int j = 0; j < strlen(backup_menu[i].name); j++){
            //if some word starts with first letter of input
            if(backup_menu[i].name[j] == input_search[0]){
                new_start = j;
                //loop through each letter in input_search 
                for(int k = 0; k < input_search_size; k++){
                    
                    if(backup_menu[i].name[new_start] == input_search[k]){
                        match_counter++;
                     
                    }
                    new_start++;
                }
                if(match_counter == input_search_size){
                    printf("%s%.2f\n",menu[i].name,menu[i].price);
                    
                    break;
                }
                
            }
            
        }
        
    }
    printf("Nacitanych %d poloziek.",meal_counter);
    
    return 0;
}