I need help to highlight peak point in the graph without using library in C

Question

#include<stdio.h>
#include<conio.h>
main()
{
int i,j=0;
int a[50]={10,7,12,2,4,7,2,4,1,2};
int x=1,y=25;
char toggle='U',c;
clrscr();
cprintf("welcome");
{
if(toggle=='U')
{
for(i=1;i<=a[j];i++)
{
gotoxy(x++,y--);
cprintf("/");
}
toggle='D';
}
else
{
c='\\';
for(i=1;i<=a[j];i++)
{
gotoxy(x++,y++);
cprintf("\\");
}
toggle='U';
}
j++;
getch();
if(j>=9)
break;
}

}

Answer 1

There are a lot of non-standard functions in use, there in your program

Answer 2

I'm getting exact output from this code based on the inputs in the array A ... I just need to highlight the peak point...In this case the peak point is 12...