void search(){int x,y,j;int number=0;for(y=0;y<800;y+=40){for(x=0;x<800;x+=40){if(view[x][y]==1){number++;}}if(number==20){j=0;while(j<=760){view[j][y]=0;j+=40;}j=y-40;for(;j>=0;j-=40)for(x=0;x<800;x+=40){if(view[x][j]==1){view[x][j]=0;view[x][j+40]=1;}}}number=0;}}
