> This is my code:
> #include<iostream.h>
> #include<math.h>
> //ifstream fin("input.txt");
> long double cx,cy,cz,nx,ny,nz,r,sx,sy,sz,vx,vy,vz;
> int main(){
>     cin >>cx >> cy >> cz >>nx >>ny >>nz >>r >>sx >>sy >>sz >>vx
> >>vy >>vz;
>     cx-=sx;
>     cy-=sy;
>     cz-=sz;
>     long double V=(nx*vx+ny*vy+nz*vz)/sqrtl(nx*nx+ny*ny+nz*nz);
>     long double G=-(10*nz)/sqrtl(nx*nx+ny*ny+nz*nz);
>     long double L=(cx*nx+cy*ny+cz*nz)/sqrtl(nx*nx+ny*ny+nz*nz);
>     if(V*V+2*L*G<0)
>     {
>         cout << "MISSED\n";
>         return 0;
>     }
>     long double t=(-V+sqrtl(V*V+2*L*G))/G;
>     if(t>=0)
>         {
>             long double xp=vx*t-cx;
>             long double yp=-cy+vy*t;
>             long double zp=-cz+vz*t-5*t*t;
>             if((xp)*(xp)+(yp)*(yp)+(zp)*(zp)<r*r)
>                 {
>                     cout << "HIT\n";
>                     return 0;
>                 }
>         }
>     t=(-V-sqrtl(V*V+2*L*G))/G;
>     if(t>=0)
>         {
>             long double xp=-cx+vx*t;
>             long double yp=-cy+vy*t;
>             long double zp=-cz+vz*t-5*t*t;
>             if((xp)*(xp)+(yp)*(yp)+(zp)*(zp)<r*r)
>                 {
>                     cout << "HIT\n";
>                     return 0;
>                 }
>         }
>     cout << "MISSED\n";
>     return 0;
> }
>
>
>

I think not print extra space.My programm print extra space and WA1

Maybe, in order to get full credit point from this task, you should delete the "getch()" ?
I do not want to see your sorting algorithm...

#include <stdio.h>
#include<conio.h>

main()
{
      int x[100][100],a,i,j;
      scanf("%d",&a);
      for( i = 0 ; i < a ; i++ )
           for( j = 0 ; j < a ; j++ )
                scanf("%d",&x[i][j]);
      for( i = 0 ; i < a ; i++ )
           for( j = 0 ; j <= i ; j++ )
                printf("%d ",x[i-j][j]);
      for( i = a ; i < 2 * a - 1 ; i++ )
           for( j = a - 1 ; j >= i - (a-1) ; j-- )
                printf("%d ",x[j][i-j]);
}
Here's the correct code

just try "you." and "wow."

Check this test case:
2
A TL 6
A TL 7

Correct answer is
1 1

Check this simple test :
10
Agabek WA 7
Adhambek TL 7
Agabek TL 3
Agabek AC
Sirius CE
Sirius AC
Adhambek WA 5
Sirius WA 5
Sirius ML 7
Adhambek AC

answer :
3 3

S[15001] <--> S[0..15000]
S1[1000001] <--> S1[0..1000000]

No additional array is required. Only several auxiliary variables.

Does this work?

import java.io.*;
class CopyFirst {
   public static void main(String[] args) throws IOException {
      int ch;
      while ((ch = System.in.read()) != -1)
         System.out.print((char)ch);
   }
}

I later got AC with this algorithm, it was correct as I had expected.
What I did was use double for the points' coordinates and output with ".6f" as if the were float.
Why does that work and my other version doesn't?