تبیان، دستیار زندگی

#include
#include
#include
#include
const int chessboardsize=8; //size of chessboard
enum{empty,queen,used};   //status
struct move   //movement direction
 {
  int x;
  int y;
 };
struct chessboard   //chessboard type
 {
  int size;
  int square[chessboardsize][chessboardsize];
  int usedsquares;
  int noqueens;
 };
void setqueenmovdi(move*whatmove,chessboard*board,move*curcoor);
void main(void)
 {
  move curcoor;  // define digonal movements
  move NE;
  NE.x=1;
  NE.y=1;
  move NW;
  NW.x=1;
  NW.y=1;
  move SE;
  SE.x=1;
  SE.y=1;
  move SW;
  SW.x=1;
  SW.y=1;
  chessboard board;
  board.size=chessboardsize;
  srand(time(0));
  while(board.noqueens!=board.size)
   {
    board.usedsquares=0;
    board.noqueens=0;
    for(int i=0;i     for(int j=0;j      board.square[i][j]=0;
    while(board.usedsquares     {
      curcoor.x=rand()%board.size;
      curcoor.y=rand()%board.size;
      if(board.square[curcoor.x][curcoor.y]==empty)
       {
        board.square[curcoor.x][curcoor.y]=queen;
        ++board.usedsquares;
              ++board.noqueens;
       }
        else
         continue;
      for(int horiz=0;horiz       if(board.square[horiz][curcoor.y]==empty)
        {
         board.square[horiz][curcoor.y]=used;
         ++board.usedsquares;
        }
      for(int verti=0;verti       if(board.square[curcoor.x][verti]==empty)
        {
         board.square[curcoor.x][verti]=used;
         ++board.usedsquares;
        }
      board.square[curcoor.x][curcoor.y]=queen;
      setqueenmovdi(&NE,&board,&curcoor);
      setqueenmovdi(&NW,&board,&curcoor);
      setqueenmovdi(&SE,&board,&curcoor);
            setqueenmovdi(&SW,&board,&curcoor);
     }
   }
  cout<  for(int i2=0;i2   {
    for(int j2=0;j2     { 
      cout<      printf(" ");
     }
    cout<   }
 }
void setqueenmovdi(move*whatmove,chessboard*board,move*curcoor)
 {
  move next;
  next.x=curcoor>x+whatmove>x;
  next.y=curcoor>y+whatmove>y;
  if(next.x<0||next.x>board>size1||next.y<0||next.y>board>size1)
   return;
  if(board>square[next.x][next.y]==empty)
   {
    board>square[next.x][next.y]=used;
    ++board>usedsquares;
   }
  setqueenmovdi(whatmove,board,&next);
   return;
 }