Something

#include <allegro.h>
BITMAP *bufor_ekranu = NULL ;
void init();
void deinit();
void rysujwykres();
void rysuj(double tablica[],int rozmiar,int sekund, double timed) ;

void zerowanie(double tablica[],int rozmiar) {
int cos=1 ;
for(int i=0;i<rozmiar;i++)
{
tablica[i]=cos ;
if(i==50) cos=0;
}
};

int main() {
    
int rozmiar = 100 ;
double tablica[100];
zerowanie(tablica,rozmiar) ;
int color= 16581375 ;
int color2= 16431375 ; 
//int czas = 100 ;
double de = 1.0e-5 ;
double timed = 100 ;
        
        
        
        
/*
for(int i=0;i<100;i++) cout << tablica[i] <<", ";    
    
    char d ;
    cin >> d ;
}*/
    
    
	init();

int tab[]={ 51,75,   51,SCREEN_H-50,
        SCREEN_W-75,SCREEN_H-50,                  SCREEN_W-75,75  
             };

int sekund = 10 ;

clear(bufor_ekranu) ;

rysuj(tablica,rozmiar,sekund,timed);


	deinit();
	return 0;
}
END_OF_MAIN()

void init() {
	int depth, res;
	allegro_init();
	depth = desktop_color_depth();
	if (depth == 0) depth = 32;
	set_color_depth(depth);
	res = set_gfx_mode(GFX_AUTODETECT_WINDOWED, 640, 480, 0, 0);
	if (res != 0) {
		allegro_message(allegro_error);
		exit(-1);
	}
if(!(bufor_ekranu = create_bitmap(640,480)))
{
set_gfx_mode(GFX_TEXT,0,0,0,0);
allegro_message("Zamalo pamieci potrzebnej do stworzenia bufora ekranu !\n");
allegro_exit();

}
	install_timer();
	install_keyboard();
	install_mouse();
	/* add other initializations here */
}

void deinit() {
	clear_keybuf();
	/* add other deinitializations here */
}

void rysujwykres() {
     //clear_bitmap(screen);
     
        
     
     int color=makecol(0, 153, 219); //16581375;

textprintf_ex(bufor_ekranu, font, 280, 20, color,
                    -1, "II Prawo Ficka");
textprintf_ex(bufor_ekranu, font, 20, 125, color,
                    -1, "1");
textprintf_ex(bufor_ekranu, font, SCREEN_W-95, SCREEN_H-35, color,
                    -1, "100");

fastline(bufor_ekranu, 50, 50, 50, SCREEN_H-50, color);     
triangle(bufor_ekranu, 50, 50, 50-3, 50+20, 50+3, 50+20, color);
fastline(bufor_ekranu, 50, SCREEN_H-50, SCREEN_W-50, SCREEN_H-50, color);   
triangle(bufor_ekranu, SCREEN_W-50, SCREEN_H-50, SCREEN_W-70, SCREEN_H-50-3,SCREEN_W-70, SCREEN_H-50+3, color);     
for(int i=1;i<=100;i=i+5)
fastline(bufor_ekranu, 50+5*i, SCREEN_H-50+2, 50+5*i, SCREEN_H-50-2, color) ;
for(int i=1;i<=100;i=i+5)
fastline(bufor_ekranu, 50-2, SCREEN_H-50-3*i, 50+2, SCREEN_H-50-3*i, color) ;



}
void rysuj(double tablica[],int rozmiar,int sekund, double timed) {
double de = 1.0e-5 ;
float deltax=0.2 / 100.0 ;    
float deltat=0.01 ;
float ab, bb ;
int color= 16581375 ;
int color2= 16431375 ; 
int a, b;
for(double i=1;i<timed;i=i+deltat) {
tablica[0]=tablica[1];
tablica[rozmiar]=tablica[rozmiar-1];
for(int j=1;j<rozmiar;j++)
{
 tablica[j]= de * deltat *((tablica[j+1]-2*tablica[j]+tablica[j-1])/(2*(deltax)*(deltax))) + tablica[j];      
}        
if((int)i % 5 == 0) {		
clear(bufor_ekranu); 



                    rysujwykres();


for(int i=1;i<100;i++)
{
ab= (float) (tablica[i-1] / 1) * 100 ;        
bb= (float) (tablica[i] / 1) * 100 ;  
a = (int) ab;
b = (int) bb;
line(bufor_ekranu, 50+5*(i-1)+1, SCREEN_H-50-((a*3)+1), 50+5*i+1, SCREEN_H-50-((b*3)+1), makecol(0,255,0)) ;       
}		    



 textprintf_ex(bufor_ekranu, font, 180, 445, makecol(0,0,255),-1, "zakoncz - enter"); 
 if(key[KEY_ENTER]) {return;};     
 blit(bufor_ekranu,screen,0,0,0,0,640,480);	
} 



//koniec for:P
}     

while(!key[KEY_ENTER]) {;};     
return;
}