Messages

Co ma byt na zapoctovke? z coho? a chcem sy spatat...bude aj opravak...ked ano tak kedy?

A vies mi povedat ako ta gramatika ma vyzerat....lebo akosi som vtedy na prednaske ani na cviku nebol kvoli zdravotnym problemom a nikde o tej gramatike neviem zohnat prezentacie.

Moje zadanie


* - Do lava -priorita 2   
/ - Do prava - priorita 1

Mozem poprosit o kontrolu ci je to takto spravne. Dakujem

Code [Select] Expand

// Interpretator vyrazov s gramatikou
// Expr -> Term { ( <*> | </> ) Term }
// Term -> <Value> | <(> Expr <)>
//
// Pozn: Terminalne symboly su v zatvorkach < >

int expr();



int term()
{ int value;
switch (symbol)
{
case LPAR : getsymbol(); value = expr(); getsymbol(); break;
case VALUE: value = attr; getsymbol(); break;
}
return value;
}

int expr()
{ int leftOp, rightOp; SymType sy;
leftOp = term();
while ((E symbol) & (E DELENIE | E NASOBENIE))
{
sy = symbol; getsymbol(); rightOp = term();
switch (sy)
{
case DELENIE :  leftOp = leftOp / rightOp ; break;
case NASOBENIE:  leftOp = rightOp * leftOp ; break;
}
}
return leftOp;
}

asociativity som nekukal, ale uz len z toho ze mas rozdielne priority nemozes mat obe operatory v jednej funkcii,

A ako to spravit? Vies mi to vystvelit prosim ta....?

Moje zadanie


* - Do lava -priorita 2   
/ - Do prava - priorita 1

Mozem poprosit o kontrolu ci je to takto spravne. Dakujem

Code [Select] Expand

// Interpretator vyrazov s gramatikou
// Expr -> Term { ( <*> | </> ) Term }
// Term -> <Value> | <(> Expr <)>
//
// Pozn: Terminalne symboly su v zatvorkach < >

int expr();



int term()
{ int value;
switch (symbol)
{
case LPAR : getsymbol(); value = expr(); getsymbol(); break;
case VALUE: value = attr; getsymbol(); break;
}
return value;
}

int expr()
{ int leftOp, rightOp; SymType sy;
leftOp = term();
while ((E symbol) & (E DELENIE | E NASOBENIE))
{
sy = symbol; getsymbol(); rightOp = term();
switch (sy)
{
case DELENIE :  leftOp = leftOp / rightOp ; break;
case NASOBENIE:  leftOp = rightOp * leftOp ; break;
}
}
return leftOp;
}

Co vlastne treba robit na tom zadani? Co tam doprogramovat alebo co??? Lebo ja tomu zadaniu zadania akosi nechapem.

Ako ma vzerat dokumentacia ?? Prosim o nejaky nahlad. Dakujem

Nema niekto hotove zadanie z cvika 3? Dakujem

Ja este vysledok v maise este ani nemam A to uz je 7 hodin vecer

Chcem sa spýtať. Ked mám zadanie spravené tak že sa skladá zo 6tich funkciíí tak teraz možem spraviť pre každú funkciu vyvojový diagram a nakonci spravit jeden celkovy?? alebo ako??

Zdravim vas. Potreboval by som pomoc s tym ncurses. Farbi vsetko ako ma ale zmeni dana vec pozziciu do vrchneho laveho rohu a posuva sa to do prava. Ked je koniec riadku tak do noveho......netreba tam dat nejaku atributu na fixnu poziciu alebo nieco take??

Dakujem za kazdu radu.

Kod vyzera takto:

Code [Select] Expand

void draw() //funkcia na vykreslenie sveta
{
start_color();
    init_pair(COLOR_CYAN, COLOR_CYAN, COLOR_BLACK);
//nastavenie podla OS na ktorom je program spusteny
#ifdef _WIN32
system("cls"); //pre OS Windows
#else
     system("clear"); //pre ostatne OS
#endif

    int i, j;    //definovanie premennych i a j
drawStatus();
    attrset(COLOR_PAIR(COLOR_CYAN)); //zobrzenie informacii o svete a pohyboch karla
    printw("+");
    for(i=0; i<3*world.width; i++)


    printw("-");                                              //vykreslovanie sveta podla danych hodnot sveta
printw("+\n");

    for(i=world.height-1; i>=0; i--) //vytvaranie sveta po osi y
{                 
printw("|");
for(j=0; j<world.width; j++) //vytvaranie sveta po osi x
{ //ked je 0<world.width tak k j pripocitam +1 az dovtedy pokial
printw(" ");        //j nenabudne rovnaku hodnotu ako world.width
                 if(i == karel.y && j == karel.x)
                 {
                      switch(karel.direction) //vykreslenie orientacie karla podla hodnoty v karel.direction
                      {
                          case 0: //ak je karel.direction = 0 vykresli sa >
                               printw(">");
                               break;
                          case 90: //ak je karel.direction = 90 vykresli sa ^
                               printw("^");
                               break;
                          case 180: //ak je karel.direction = 180 vykresli sa <
                               printw("<");
                               break;
                          case 270: //ak je karel.direction = 270 vykresli sa v
                               printw("v");
                               break;
                      }
                 }
                 else if(world.data[i][j] == EMPTY) //ak je hodnota na suradniciach [x,y] 0 vykresli .
                 {
                     printw(".");
                 }
                 else if(world.data[i][j] == WALL) //ak je hodnota na suradniciach [x,y] -1 hodnota vykresli #
                 {
                     printw("#");
                 }
                 else //inak vykresli hodnotu na suradniciach [x,y]
                 {
                     printw("%d", world.data[i][j]);
                 }
 
printw(" ");
    }
printw("|\n");
  }
printw("+"); //ukoncenie sveta - spodna stena
    for(i=0; i<3*world.width; i++) printw("-");
    printw("+\n");
    setStepDelay(200);
    refresh(); //nastavenie rychlosti krokov karla
}

Z coho sa ucite? Z prednasok?

  [Linker error] undefined reference to `usleep'
  [Linker error] undefined reference to `WinMain@16'
  ld returned 1 exit status

stále nejaka chyba, jednu chybu odstranim, a objaví sa dalšia a nakoniec toto

prosím pomôžte, najlepšie cez ICQ 262322023, pošlem zdrojak

No ja sa bojim ze to asi nedas dokopy....lebo usleep je to iste ako sleep ale s tym rozdielom ze uslep je na unix. Pri windows sa do sleep udavaju ms tak pri unixe su to sekundy.

cize z main je include iba na library.h z library.c volanie na library.h nieje a teraz mi ta posahana omega hadze toto:

./library.c: In function âturnOnâ:
./library.c:15: error: âkarelâ undeclared (first use in this function)
./library.c:15: error: (Each undeclared identifier is reported only once
./library.c:15: error: for each function it appears in.)
./library.c:17: error: âworldâ undeclared (first use in this function)
./library.c: In function âturnOnFileâ:
./library.c:29: warning: implicit declaration of function âreadWorldFileâ
./library.c: In function âsaveFileâ:
./library.c:34: warning: implicit declaration of function âwriteWorldFileâ
./library.c: In function âdrawâ:
./library.c:48: warning: implicit declaration of function âdrawStatusâ
./library.c:51: error: âworldâ undeclared (first use in this function)
./library.c:61: error: âkarelâ undeclared (first use in this function)
./library.c:79: error: âEMPTYâ undeclared (first use in this function)
./library.c:83: error: âWALLâ undeclared (first use in this function)
./library.c:89: error: âbeepSâ undeclared (first use in this function)
./library.c:106: warning: implicit declaration of function âusleepâ
./library.c: At top level:
./library.c:110: warning: conflicting types for âdrawStatusâ
./library.c:48: warning: previous implicit declaration of âdrawStatusâ was here
./library.c: In function âdrawStatusâ:
./library.c:114: error: âkarelâ undeclared (first use in this function)
./library.c:114: warning: implicit declaration of function âsmerâ
./library.c:114: warning: implicit declaration of function â_beepersAtCurrentPositionâ
./library.c:114: warning: format â%sâ expects type âchar *â, but argument 4 has type âintâ
./library.c: In function âturnLeftâ:
./library.c:124: error: âkarelâ undeclared (first use in this function)
./library.c: In function âturnRightâ:
./library.c:130: error: âkarelâ undeclared (first use in this function)
./library.c: In function âturnBackâ:
./library.c:137: error: âkarelâ undeclared (first use in this function)
./library.c: In function âfrontIsClearâ:
./library.c:149: error: âkarelâ undeclared (first use in this function)
./library.c:153: error: âworldâ undeclared (first use in this function)
./library.c:153: error: âWALLâ undeclared (first use in this function)
./library.c: In function âleftIsClearâ:
./library.c:206: error: âkarelâ undeclared (first use in this function)
./library.c:210: error: âworldâ undeclared (first use in this function)
./library.c:210: error: âWALLâ undeclared (first use in this function)
./library.c: In function ârightIsClearâ:
./library.c:262: error: âkarelâ undeclared (first use in this function)
./library.c:266: error: âworldâ undeclared (first use in this function)
./library.c:266: error: âWALLâ undeclared (first use in this function)
./library.c: In function âfacingSouthâ:
./library.c:320: error: âkarelâ undeclared (first use in this function)
./library.c: In function âfacingNorthâ:
./library.c:332: error: âkarelâ undeclared (first use in this function)
./library.c: In function âfacingWestâ:
./library.c:344: error: âkarelâ undeclared (first use in this function)
./library.c: In function âfacingEastâ:
./library.c:356: error: âkarelâ undeclared (first use in this function)
./library.c: In function âbeepersInBagâ:
./library.c:368: error: âkarelâ undeclared (first use in this function)
./library.c: In function âbeepersPresentâ:
./library.c:385: error: âworldâ undeclared (first use in this function)
./library.c:385: error: âkarelâ undeclared (first use in this function)
./library.c: In function âputBeeperâ:
./library.c:391: error: âworldâ undeclared (first use in this function)
./library.c:391: error: âkarelâ undeclared (first use in this function)
./library.c: In function âpickBeeperâ:
./library.c:402: error: âworldâ undeclared (first use in this function)
./library.c:402: error: âkarelâ undeclared (first use in this function)
./library.c: In function â_beepersAtCurrentPositionâ:
./library.c:411: error: âworldâ undeclared (first use in this function)
./library.c:411: error: âkarelâ undeclared (first use in this function)
./library.c: In function âmovekâ:
./library.c:422: error: âkarelâ undeclared (first use in this function)
./library.c: At top level:
./library.c:446: error: conflicting types for âsmerâ
./library.c:114: error: previous implicit declaration of âsmerâ was here
./library.c:489: warning: conflicting types for âreadWorldFileâ
./library.c:29: warning: previous implicit declaration of âreadWorldFileâ was here
./library.c: In function âreadWorldFileâ:
./library.c:501: error: âworldâ undeclared (first use in this function)
./library.c:501: error: âkarelâ undeclared (first use in this function)
./library.c:508: error: âMAX_WIDTHâ undeclared (first use in this function)
./library.c:508: error: âMAX_HEIGHTâ undeclared (first use in this function)
./library.c:525: error: âWALLâ undeclared (first use in this function)
./library.c: At top level:
./library.c:536: warning: conflicting types for âwriteWorldFileâ
./library.c:34: warning: previous implicit declaration of âwriteWorldFileâ was here
./library.c: In function âwriteWorldFileâ:
./library.c:539: error: âworldâ undeclared (first use in this function)
./library.c:539: error: âkarelâ undeclared (first use in this function)
./library.c:543: error: âWALLâ undeclared (first use in this function)
make: *** [library.o] Error 1

library.h

Code [Select] Expand

#ifndef LIBRARY_H
#define LIBRARY_H

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

#define MAX_HEIGHT 20
#define MAX_WIDTH 20
#define WALL -1
#define EMPTY 0

#define EAST 0
#define NORTH 90
#define WEST 180
#define SOUTH 270


char * smer();

enum Boolean {
     False = 0,
     True = 1
};

struct Robot {
    int x;
    int y;
    int beepers;
int direction;   
};
struct Robot karel;


struct World {
  int width, height;
  int data[MAX_HEIGHT][MAX_WIDTH];
};

// World 'world' - global variable
struct World world;


void drawStatus();


// Saves world to file output.kw.
// File will be rewritten if exists.
void turnOff();

// Draws world to standard output.
void draw();

// Draws information about world to standard output.
void drawStatus();


// Returns false if in front of robot is wall or is
// out of map.
int frontIsClear();

// Negation of frontIsClear()
int frontIsBlocked();

// Returns false if left to the robot is wall or is
// out of map.
int leftIsClear();

// Negation of leftIsClear()
int leftIsBlocked();

// See leftIsClear().
int rightIsClear();

// Negation of rightIsClear()
int rightIsBlocked();

// Returns true if there are any beepers in the bag.
int beepersInBag();

// Returns true if there are no beepers in the bag.
int noBeepersInBag();


// Returns count of beepers at current position.
int _beepersAtCurrentPosition();

// Returns robot's direction as string.
char * smer();

// Converts (int) direction to character, like N, S, E, W.
char directionToWord(int direction);

// Loads world from file specified by path parameter.
void readWorldFile(char *path);

// Saves current world to file specified by path parameter.
void writeWorldFile(char *path);
#endif

Pokial som to pochopil tak netaha define.vsetko ostatne natiahne. Teraz nechapem. Ako programujem weby a vzdy som si myslel ze najhorise je spravit kompatibilitu pre IE, Firefox, Safari a podobne....ale vidim ze som sa zmylil.....omega prekonala....

prosim ta a co tam mam zle....mohol by si mi s tym pomost. Prosim ta.

tak teraz mi zase vypisalo toto

In file included from ./main.c:5:
./library.h: At top level:
./library.h:10: error: redefinition of âkarel_beepersâ
./library.h:10: error: previous definition of âkarel_beepersâ was here
./library.h:11: error: redefinition of âkarel_directionâ
./library.h:11: error: previous definition of âkarel_directionâ was here
./library.h:12: error: redefinition of âbeepSâ
./library.h:12: error: previous definition of âbeepSâ was here
./library.h:19: error: nested redefinition of âenum Directionâ
./library.h:19: error: redeclaration of âenum Directionâ
./library.h:20: error: redeclaration of enumerator âEASTâ
./library.h:20: error: previous definition of âEASTâ was here
./library.h:21: error: redeclaration of enumerator âWESTâ
./library.h:21: error: previous definition of âWESTâ was here
./library.h:22: error: redeclaration of enumerator âNORTHâ
./library.h:22: error: previous definition of âNORTHâ was here
./library.h:24: error: redeclaration of enumerator âSOUTHâ
./library.h:24: error: previous definition of âSOUTHâ was here
./library.h:26: error: nested redefinition of âenum Booleanâ
./library.h:26: error: redeclaration of âenum Booleanâ
./library.h:27: error: redeclaration of enumerator âFalseâ
./library.h:27: error: previous definition of âFalseâ was here
./library.h:29: error: redeclaration of enumerator âTrueâ
./library.h:29: error: previous definition of âTrueâ was here
./library.h:32: error: redefinition of âstruct Robotâ
./library.h:40: error: redefinition of âstruct Worldâ

a moj library.h vyzera takto

Code [Select] Expand

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

#define MAX_HEIGHT 20
#define MAX_WIDTH 20
#define WALL -1
#define EMPTY 0


int karel_beepers = 20;
int karel_direction = 0;
int beepS = 1;

char * smer();


// aktualna poloha robota
//enum Direction
enum Direction {
     EAST = 0,
     WEST = 180,
     NORTH = 90,
     SOUTH = 270
};

enum Boolean {
     False = 0,
     True = 1
};

//struktura Robot
struct Robot {
       int x;
       int y;
       int beepers;
       
};
struct Robot karel;

struct World {
  int width, height;
  int data[MAX_HEIGHT][MAX_WIDTH];
};



Mam problem pri kompilovani na omege.

Ked dam skompilovat tak mi vypise zopar warningov.

Napr:

./main.c:27: warning: implicit declaration of function âfacingEastâ

a tomto riadku mam

Code [Select] Expand

if(facingEast())
{
int turnBack();
}
else if(facingSouth())
{
int turnRight();
}
else if(facingNorth())
{
int turnLeft();
}
if(!frontIsClear())
{
turnLeft();
while(frontIsClear())
movek();
turnLeft();
}
else
{
while(frontIsClear())
movek();
turnLeft();
movek();
while(frontIsClear())
movek();
turnLeft();
movek();

}
}

definovanie funkcie je tu

Code [Select] Expand

int facingSouth()
{
  if (karel_direction == 270) return 1;
    else return 0;
}

Neviete nahodu co ta chyba znamena lebo nikde to neviem najst. Dakujem

pomocou akeho prikazu spustit vykompilovany program cez omegu?

Mam taky problem. Karel poziciu ma poziciu 0,0 v lavom hornom rohu a ja by som chcel dolny lavy...ako to spravit...ja si uz z to karla vytrham vlasy.

Code [Select] Expand

void turnOn()
{
    int world1[5][4] = {
   { 1, 1, 2, 3 },
   { 0, 4, 3, 1 },
   { 2, 0, 0, 2 },
   { 5, 1, 0, 3 },
   { 0, 0, 0, 0 }

};
world.width = 4;
world.height = 5;

karel.x = 2;
karel.y = 3;
int x, y;
for(x=0; x<world.height; x++){
for(y=0; y<world.width; y++)
world.data[x][y]=world1[x][y];
}
}

Code [Select] Expand

void draw()
{
 system("cls");
 drawStatus();

    int x,y;

    for(x=0; x<world.height; x++)
    {
       for(y=0; y<world.width; y++)
       {

                if(x == karel.y && y == karel.x)
                {
                     switch(karel_direction)
                     {
                         case 0:
                              printf(">");
                              break;
                         case 90:
                              printf("v");
                              break;
                         case 180:
                              printf("<");
                              break;
                         case 270:
                              printf("^");
                              break;
                     }
                }
                else if(world.data[x][y] == EMPTY)
                {
                    printf(".");
                }
                else if(world.data[x][y] == WALL)
                {
                    printf("#");
                }
                else
                {
                    if(beepS == 1)
                    {
                    printf("%d", world.data[x][y]);                              
                    }
                    else
                    {
                    printf("*");                        
                    }
                }
          }
          printf("\n");
    }
   
    printf("\n");
 sleep(1000);    

}

Moze byt senzor facingSouth() takto?

Code [Select] Expand


int facingSouth()
{
  if (karel_direction == 0) return 1;
    else return 0;
}


karel direction mam zadane aktualny smer karla v uhloch....cize 0 90 180 270

Dakujem

iba z nazvu funkcii usudzujem ze zistuje na aku svetovu stranu sa pozera karel ci sipka ci co to tam mate

presne tak. dokonca aj google hodi pomerne dobry preklad: "ak Karel stojí na východ"

Ale naco mam spravit funkciu na senzor na aky smer smeruje ked to mi ukazuje priamo ked zapnem karla a zacne sa pohybovat. Tak potom naco senzor na svetove strany?

Caute. Chcem sa spytat na senzori facingSouth() , facingWest() .... o co ide pri tychto senzoroch....lebo neviem ci som si to spravne z anglictiny prelozil. Ma to znamenat ci je na SEVER, JUH, ZAPAD, VYCHOD stena alebo ako???


Dakujem za odpoved.

Cawte.Chcem sa spytat ze ked pojdem do inej miestnosti pocas opravnej ci mi nieco mozu.Lebo mam byt v miestnosti P27 a tam sa nahovno pouziva tahak...a preto chcem ist do AF.Mozem mat z toho nejake problemy alebo je to jedno??