Compilare: user.cpp: In function ‘void fill(int, int)’: user.cpp:17:39: warning: iteration 4u invokes undefined behavior [-Waggressive-loop-optimizations] if(inside(x + dx[i] , y + dy[i]) == 1 && a[x + dx[i]][y + dy[i]] == 0) ^ user.cpp:16:5: note: containing loop for(int i = 1 ; i <= 8 ; ++ i) ^ user.cpp:17:39: warning: iteration 4u invokes undefined behavior [-Waggressive-loop-optimizations] if(inside(x + dx[i] , y + dy[i]) == 1 && a[x + dx[i]][y + dy[i]] == 0) ^ user.cpp:16:5: note: containing loop for(int i = 1 ; i <= 8 ; ++ i) ^ user.cpp:17:39: warning: iteration 4u invokes undefined behavior [-Waggressive-loop-optimizations] if(inside(x + dx[i] , y + dy[i]) == 1 && a[x + dx[i]][y + dy[i]] == 0) ^ user.cpp:16:5: note: containing loop for(int i = 1 ; i <= 8 ; ++ i) ^ user.cpp:17:39: warning: iteration 4u invokes undefined behavior [-Waggressive-loop-optimizations] if(inside(x + dx[i] , y + dy[i]) == 1 && a[x + dx[i]][y + dy[i]] == 0) ^ user.cpp:16:5: note: containing loop for(int i = 1 ; i <= 8 ; ++ i) ^ user.cpp:17:39: warning: iteration 4u invokes undefined behavior [-Waggressive-loop-optimizations] if(inside(x + dx[i] , y + dy[i]) == 1 && a[x + dx[i]][y + dy[i]] == 0) ^ user.cpp:16:5: note: containing loop for(int i = 1 ; i <= 8 ; ++ i) ^ user.cpp:17:39: warning: iteration 4u invokes undefined behavior [-Waggressive-loop-optimizations] if(inside(x + dx[i] , y + dy[i]) == 1 && a[x + dx[i]][y + dy[i]] == 0) ^ user.cpp:16:5: note: containing loop for(int i = 1 ; i <= 8 ; ++ i) ^ user.cpp:17:39: warning: iteration 4u invokes undefined behavior [-Waggressive-loop-optimizations] if(inside(x + dx[i] , y + dy[i]) == 1 && a[x + dx[i]][y + dy[i]] == 0) ^ user.cpp:16:5: note: containing loop for(int i = 1 ; i <= 8 ; ++ i) ^ user.cpp:17:39: warning: iteration 4u invokes undefined behavior [-Waggressive-loop-optimizations] if(inside(x + dx[i] , y + dy[i]) == 1 && a[x + dx[i]][y + dy[i]] == 0) ^ user.cpp:16:5: note: containing loop for(int i = 1 ; i <= 8 ; ++ i) ^ user.cpp:17:39: warning: iteration 4u invokes undefined behavior [-Waggressive-loop-optimizations]