i guess i need real helpp for my mini project at college,please help me executing this problem.
Also thr is an .cpp attachment file used in Turbo C ,
Please help

#include<stdio.h>
#include<conio.h>
#include<graphics.h>
#include<bios.h>
#include<stdlib.h>
int gd=DETECT,gm,ctrl=-30,x_location,y_location,rear=-1,maxx,maxy;
int in_key,ctr[1500],nc,xr=0,yr=0,sp=15,err=0,scr=0,i=0,front=0;
int size,x=0,y=0,dx_location,xctr[1500],yctr[1500];
char pattern={1};
main()
{
/*function to initialise the graphics mode*/
grapini();
/*function for intro graphics*/
intro();
/*function to draw boundaries*/
snakeboundary();
/*function to initialise game and generate first dot*/
intgame();
/*condition to check if key pressed is 'q'*/
nc=in_key=bioskey(0);
while(in_key!=4209)
{
/*condition to check if any key is pressed*/
while(!kbhit())
{
/*case to increment front end of snake*/
switch(in_key)
{
case 0x4800:y_location-=1;break;
case 0x5000:y_location+=1;break;
case 0x4b00:x_location-=1;break;
case 0x4d00:x_location+=1;break;
}
putpixel(x_location,y_location,15);
/*condition to check if the snake touches the boundary*/
if(err) break;
if(((y_location==dy_location)&&(x_location==dx_location))||\
   (x_location>=maxx-13)||(y_location<=13)||(y_location>=maxy-63))
{
err=1;
break;
}
/*delay to vary speed*/
delay(sp);
/*ctrl variable to allow initial length of snake*/
if(ctrl>0)
{
if((dx_location==xctr[front]&&(dy_location==yctr[front]))
nc=ctr[front++];
if(((dx_location==xr-1)||(dx_location==xr)||(dx_location==xr+1))&&\
   ((dy_location==yr-1)||(dy_location==yr)||(dy_location==yr+1)))
/*function for random dot generation*/
randdot();
/*case to increment back end of snake*/
switch(nc)
{
case 0x4800:dy_location-=1;break;
case 0x5000:dy_location+=1;break;
case 0x4b00:dx_location-=1;break;
case 0x4d00:dx_location+=1;break;
}
putpixel(dx_location,dy_location,0);
}
ctrl++;
}
/*stats for storing the new direction and position of snake*/
in_key=bioskey(0);
rear+=1;
ctr[rear]=in_key;
xctr[rear]=x_location;
yctr[rear]=y_location;
}
/*condition to display score after end of game*/
if(err)
{
settextstyle(7,0,5);
setcolor(150;
printf("your score is %d",scr);
outtextxy(200,100,"your game is over");
getch();
}
closegraph();
}
/*end of main*/

/*function to initialise graphics mode*/
grapini()
{
intgraph(&gd,&gm,"c:\\turboc3\\turboc3");
setgraphmode(VGAHI);
maxx=getmaxx();
maxy=getmaxy();
moveto(x_location=maxx/2,y_location=maxy/2);
}
/*function for intro graphics*/
intro()
{
int locy=0,locx=0,locy1=0,locy2=0;
settextstyle(7,0,10);
locx=maxx/4-15;
locy1=locy2=locy=maxy/2;
/*condition to display demo till key pressed*/
while(!kbhit())
{
for(i=1;i<=50;i++)
{
setcolor(14);
outtextxy(locx,locy2-maxy/2,"g");
outtextxy(locx+65,locy1-maxy/2,"a");
outtextxy(locx+150,locy2-maxy/2,"m");
outtextxy(locx+295,locy1-maxy/2,"e");
outtextxy(locx,locy1,"s");
outtextxy(locx+60,locy2,"n");
outtextxy(locx+150,locy1,"a");
outtextxy(locx+225,locy2,"k");
outtextxy(locx+300,locy1,"e");
delay(50);
locy1++;
locy2--;
setcolor(0);
outtextxy(locx,locy2-maxy/2+1,"j");
outtextxy(locx+65,locy1-maxy/2-1,"p");
outtextxy(locx+150,locy2-maxy/2+1,"'");
outtextxy(locx+295,locy-maxy/2-1,"s");
outtextxy(locx,locy1-1,"s");
outtextxy(locx+60,locy2+1,"n");
outtextxy(locx+150,locy1-1,"a");
outtextxy(locx+225,locy2+1,"k");
outtextxy(locx+300,locy1-1,"e");
}
}
getch();
}
/*function to draw boundaries*/
snake boundary()
{
setcolor(10);
line(10,10,10,maxy-60);line(13,13,13,maxy-63);
line(10,10,maxx-10,10);line(13,13,maxx-13,13);
line(maxx-10,10,maxx-10,maxy-60);line(maxx-13,13,maxx-13,maxy-63);
line(10,maxy-60,maxx-10,maxy-60);line(13,maxy-63,maxx-13,maxy-63);
}
/*function to initialise game and generate first dot*/
intgame()
{
randomize();
xr=random(maxx-13);
if(xr<=13)
xr+=13;
yr=random(maxy-63);
if(yr<=13)
yr+=13;
bar(xr-1,yr+1,xr+1,yr-1);
setfillstyle(pattern,15);
dx_location=maxx/2;
dy_location=maxy/2;
}
/*function for random dot generation*/
randdot()
{
scr++;
setfillstyle(pattern,0);
bar(xr-2,yr+2,xr+2,yr-2);
sp=sp-1;
xr=random(maxx-13);
if(xr<=13)
xr+=13;
yr=random(maxy-63);
if(yr<=13)
yr+=13;
bar(xr-1,yr+1,xr+1,yr-1);
ctrl=-30;
setfillstyle(pattern,15);
bar(xr-1,yr+1,xr+1,yr-1);
}
Attachments
#include<stdio.h>
#include<conio.h>
#include<graphics.h>
#include<bios.h>
#include<stdlib.h>
int gd=DETECT,gm,ctrl=-30,x_location,y_location,rear=-1,maxx,maxy;
int in_key,ctr[1500],nc,xr=0,yr=0,sp=15,err=0,scr=0,i=0,front=0;
int size,x=0,y=0,dx_location,xctr[1500],yctr[1500];
char pattern={1};
main()
{
/*function to initialise the graphics mode*/
grapini();
/*function for intro graphics*/
intro();
/*function to draw boundaries*/
snakeboundary();
/*function to initialise game and generate first dot*/
intgame();
/*condition to check if key pressed is 'q'*/
nc=in_key=bioskey(0);
while(in_key!=4209)
{
/*condition to check if any key is pressed*/
while(!kbhit())
{
/*case to increment front end of snake*/
switch(in_key)
{
case 0x4800:y_location-=1;break;
case 0x5000:y_location+=1;break;
case 0x4b00:x_location-=1;break;
case 0x4d00:x_location+=1;break;
}
putpixel(x_location,y_location,15);
/*condition to check if the snake touches the boundary*/
if(err) break;
if(((y_location==dy_location)&&(x_location==dx_location))||\
   (x_location>=maxx-13)||(y_location<=13)||(y_location>=maxy-63))
{
err=1;
break;
}
/*delay to vary speed*/
delay(sp);
/*ctrl variable to allow initial length of snake*/
if(ctrl>0)
{
if((dx_location==xctr[front]&&(dy_location==yctr[front]))
nc=ctr[front++];
if(((dx_location==xr-1)||(dx_location==xr)||(dx_location==xr+1))&&\
   ((dy_location==yr-1)||(dy_location==yr)||(dy_location==yr+1)))
/*function for random dot generation*/
randdot();
/*case to increment back end of snake*/
switch(nc)
{
case 0x4800:dy_location-=1;break;
case 0x5000:dy_location+=1;break;
case 0x4b00:dx_location-=1;break;
case 0x4d00:dx_location+=1;break;
}
putpixel(dx_location,dy_location,0);
}
ctrl++;
}
/*stats for storing the new direction and position of snake*/
in_key=bioskey(0);
rear+=1;
ctr[rear]=in_key;
xctr[rear]=x_location;
yctr[rear]=y_location;
}
/*condition to display score after end of game*/
if(err)
{
settextstyle(7,0,5);
setcolor(150;
printf("your score is %d",scr);
outtextxy(200,100,"your game is over");
getch();
}
closegraph();
}
/*end of main*/

/*function to initialise graphics mode*/
grapini()
{
intgraph(&gd,&gm,"c:\\turboc3\\turboc3");
setgraphmode(VGAHI);
maxx=getmaxx();
maxy=getmaxy();
moveto(x_location=maxx/2,y_location=maxy/2);
}
/*function for intro graphics*/
intro()
{
int locy=0,locx=0,locy1=0,locy2=0;
settextstyle(7,0,10);
locx=maxx/4-15;
locy1=locy2=locy=maxy/2;
/*condition to display demo till key pressed*/
while(!kbhit())
{
for(i=1;i<=50;i++)
{
setcolor(14);
outtextxy(locx,locy2-maxy/2,"g");
outtextxy(locx+65,locy1-maxy/2,"a");
outtextxy(locx+150,locy2-maxy/2,"m");
outtextxy(locx+295,locy1-maxy/2,"e");
outtextxy(locx,locy1,"s");
outtextxy(locx+60,locy2,"n");
outtextxy(locx+150,locy1,"a");
outtextxy(locx+225,locy2,"k");
outtextxy(locx+300,locy1,"e");
delay(50);
locy1++;
locy2--;
setcolor(0);
outtextxy(locx,locy2-maxy/2+1,"j");
outtextxy(locx+65,locy1-maxy/2-1,"p");
outtextxy(locx+150,locy2-maxy/2+1,"'");
outtextxy(locx+295,locy-maxy/2-1,"s");
outtextxy(locx,locy1-1,"s");
outtextxy(locx+60,locy2+1,"n");
outtextxy(locx+150,locy1-1,"a");
outtextxy(locx+225,locy2+1,"k");
outtextxy(locx+300,locy1-1,"e");
}
}
getch();
}
/*function to draw boundaries*/
snake boundary()
{
setcolor(10);
line(10,10,10,maxy-60);line(13,13,13,maxy-63);
line(10,10,maxx-10,10);line(13,13,maxx-13,13);
line(maxx-10,10,maxx-10,maxy-60);line(maxx-13,13,maxx-13,maxy-63);
line(10,maxy-60,maxx-10,maxy-60);line(13,maxy-63,maxx-13,maxy-63);
}
/*function to initialise game and generate first dot*/
intgame()
{
randomize();
xr=random(maxx-13);
if(xr<=13)
xr+=13;
yr=random(maxy-63);
if(yr<=13)
yr+=13;
bar(xr-1,yr+1,xr+1,yr-1);
setfillstyle(pattern,15);
dx_location=maxx/2;
dy_location=maxy/2;
}
/*function for random dot generation*/
randdot()
{
scr++;
setfillstyle(pattern,0);
bar(xr-2,yr+2,xr+2,yr-2);
sp=sp-1;
xr=random(maxx-13);
if(xr<=13)
xr+=13;
yr=random(maxy-63);
if(yr<=13)
yr+=13;
bar(xr-1,yr+1,xr+1,yr-1);
ctrl=-30;
setfillstyle(pattern,15);
bar(xr-1,yr+1,xr+1,yr-1);
}

Many simple syntax error, seems like you're in your first 3 or 6 month of learn in programming... Keep the spirit :)
Thank's to the IDE, all errors and warning can be solved in only few minutes..
But though no more errors and warnings message still i think you need to fix some logic of the program.
Oh, one more thing. Seems like you're writing in C not in C++ so i think it's better to change the file name from Snake.cpp to Snake.c

The code bellow is tested on Borland Turbo C 3.0, and since it's utilizing borland specific graphic library, seems like other compilers will fail to compile this code.

#include <stdio.h>
#include <conio.h>
#include <graphics.h>
#include <bios.h>
#include <stdlib.h>
#include <dos.h>
#include <time.h>


/*function to initialise graphics mode*/
void grapini(void);

/*function for intro graphics*/
void intro(void);

/*function to draw boundaries*/
void snakeboundary(void);

/*function to initialise game and generate first dot*/
void intgame(void);

/*function for random dot generation*/
void randdot(void);


int gd=DETECT,gm,ctrl=-30,x_location,y_location,rear=-1,maxx,maxy;
int in_key,ctr[1500],nc,xr=0,yr=0,sp=15,err=0,scr=0,i=0,front=0;
int size,x=0,y=0,dx_location, dy_location, xctr[1500],yctr[1500];
char pattern={1};

int main(void)
{
    /*function to initialise the graphics mode*/
    grapini();
    /*function for intro graphics*/
    intro();
    /*function to draw boundaries*/
    snakeboundary();
    /*function to initialise game and generate first dot*/
    intgame();
    /*condition to check if key pressed is 'q'*/
    nc=in_key=bioskey(0);
    while (in_key!=4209)
    {
        /*condition to check if any key is pressed*/
        while (!kbhit())
        {
            /*case to increment front end of snake*/
            switch (in_key)
            {
            case 0x4800:
                y_location-=1;
                break;
            case 0x5000:
                y_location+=1;
                break;
            case 0x4b00:
                x_location-=1;
                break;
            case 0x4d00:
                x_location+=1;
                break;
            }
            putpixel(x_location,y_location,15);
            /*condition to check if the snake touches the boundary*/
            if (err) break;
            if (((y_location==dy_location)&&(x_location==dx_location))||\
                    (x_location>=maxx-13)||(y_location<=13)||(y_location>=maxy-63))
            {
                err=1;
                break;
            }
            /*delay to vary speed*/
            delay(sp);
            /*ctrl variable to allow initial length of snake*/
            if (ctrl>0)
            {
                if (dx_location==xctr[front]&&(dy_location==yctr[front]))
                {
                    nc=ctr[front++];
                    if (((dx_location==xr-1)||(dx_location==xr)||(dx_location==xr+1))&&\
                            ((dy_location==yr-1)||(dy_location==yr)||(dy_location==yr+1)))
                        /*function for random dot generation*/
                        randdot();
                    /*case to increment back end of snake*/
                    switch (nc)
                    {
                    case 0x4800:
                        dy_location-=1;
                        break;
                    case 0x5000:
                        dy_location+=1;
                        break;
                    case 0x4b00:
                        dx_location-=1;
                        break;
                    case 0x4d00:
                        dx_location+=1;
                        break;
                    }
                }
                putpixel(dx_location,dy_location,0);
            }
            ctrl++;
        }
        /*stats for storing the new direction and position of snake*/
        in_key=bioskey(0);
        rear+=1;
        ctr[rear]=in_key;
        xctr[rear]=x_location;
        yctr[rear]=y_location;
    }
    /*condition to display score after end of game*/
    if (err)
    {
        settextstyle(7,0,5);
        setcolor(150);
        printf("your score is %d",scr);
        outtextxy(200,100,"your game is over");
        getch();
    }
    closegraph();
    return 0;
}
/*end of main*/

void grapini(void)
{
    initgraph(&gd,&gm,"c:\\turboc3\\turboc3");
    setgraphmode(VGAHI);
    maxx=getmaxx();
    maxy=getmaxy();
    moveto(x_location=maxx/2,y_location=maxy/2);
};

void intro(void)
{
    int locy=0,locx=0,locy1=0,locy2=0;
    settextstyle(7,0,10);
    locx=maxx/4-15;
    locy1=locy2=locy=maxy/2;
    /*condition to display demo till key pressed*/
    while (!kbhit())
    {
        for (i=1;i<=50;i++)
        {
            setcolor(14);
            outtextxy(locx,locy2-maxy/2,"g");
            outtextxy(locx+65,locy1-maxy/2,"a");
            outtextxy(locx+150,locy2-maxy/2,"m");
            outtextxy(locx+295,locy1-maxy/2,"e");
            outtextxy(locx,locy1,"s");
            outtextxy(locx+60,locy2,"n");
            outtextxy(locx+150,locy1,"a");
            outtextxy(locx+225,locy2,"k");
            outtextxy(locx+300,locy1,"e");
            delay(50);
            locy1++;
            locy2--;
            setcolor(0);
            outtextxy(locx,locy2-maxy/2+1,"j");
            outtextxy(locx+65,locy1-maxy/2-1,"p");
            outtextxy(locx+150,locy2-maxy/2+1,"'");
            outtextxy(locx+295,locy-maxy/2-1,"s");
            outtextxy(locx,locy1-1,"s");
            outtextxy(locx+60,locy2+1,"n");
            outtextxy(locx+150,locy1-1,"a");
            outtextxy(locx+225,locy2+1,"k");
            outtextxy(locx+300,locy1-1,"e");
        }
    }
    getch();
}

void snakeboundary(void)
{
    setcolor(10);
    line(10,10,10,maxy-60);
    line(13,13,13,maxy-63);
    line(10,10,maxx-10,10);
    line(13,13,maxx-13,13);
    line(maxx-10,10,maxx-10,maxy-60);
    line(maxx-13,13,maxx-13,maxy-63);
    line(10,maxy-60,maxx-10,maxy-60);
    line(13,maxy-63,maxx-13,maxy-63);
}

void intgame(void)
{
    randomize();
    xr=random(maxx-13);
    if (xr<=13)
        xr+=13;
    yr=random(maxy-63);
    if (yr<=13)
        yr+=13;
    bar(xr-1,yr+1,xr+1,yr-1);
    setfillstyle(pattern,15);
    dx_location=maxx/2;
    dy_location=maxy/2;
}

void randdot(void)
{
    scr++;
    setfillstyle(pattern,0);
    bar(xr-2,yr+2,xr+2,yr-2);
    sp=sp-1;
    xr=random(maxx-13);
    if (xr<=13)
        xr+=13;
    yr=random(maxy-63);
    if (yr<=13)
        yr+=13;
    bar(xr-1,yr+1,xr+1,yr-1);
    ctrl=-30;
    setfillstyle(pattern,15);
    bar(xr-1,yr+1,xr+1,yr-1);
}
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