Compilare: user.cpp: In function ‘void tryZone(int)’: user.cpp:38:44: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(((x - startx + 1) % 2 == 0) && !((y - starty + 1) % 2 == 0) || (x == startx && y == starty)){ ^ user.cpp: In function ‘int main()’: user.cpp:62:9: warning: unused variable ‘maxi’ [-Wunused-variable] int maxi = 0; ^ user.cpp: In function ‘void tryZone(int)’: user.cpp:45:46: warning: ‘endy’ may be used uninitialized in this function [-Wmaybe-uninitialized] if((endx - startx + 1) % 2 == 0 && (endy - starty + 1) % 2 == 0){ ^ user.cpp:45:46: warning: ‘starty’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:45:14: warning: ‘endx’ may be used uninitialized in this function [-Wmaybe-uninitialized] if((endx - startx + 1) % 2 == 0 && (endy - starty + 1) % 2 == 0){ ^ user.cpp:45:14: warning: ‘startx’ may be used uninitialized in this function [-Wmaybe-uninitialized]