Compilare: main.cpp: In function 'bool rectangle(int, int, int, int)': main.cpp:55:7: warning: unused variable 'linie' [-Wunused-variable] int linie = ii - i + 1; ^~~~~ main.cpp:56:7: warning: unused variable 'coloana' [-Wunused-variable] int coloana = jj - j + 1; ^~~~~~~ main.cpp: In function 'int main()': main.cpp:84:19: warning: unused variable 'xx' [-Wunused-variable] int ii, jj, x, y, xx, yy, maxim = 0, nr = 0, val = 0, nrd = 0; ^~ main.cpp:84:23: warning: unused variable 'yy' [-Wunused-variable] int ii, jj, x, y, xx, yy, maxim = 0, nr = 0, val = 0, nrd = 0; ^~