Compilare: user.cpp: In function ‘int calc(int, int, int)’: user.cpp:18:9: warning: unused variable ‘nr’ [-Wunused-variable] int nr = 0; ^ user.cpp:29:45: warning: unused variable ‘imax’ [-Wunused-variable] int maxim = 0, minim = INF, miny = INF, imax, imin, iy; ^ user.cpp:29:51: warning: unused variable ‘imin’ [-Wunused-variable] int maxim = 0, minim = INF, miny = INF, imax, imin, iy; ^ user.cpp:29:57: warning: unused variable ‘iy’ [-Wunused-variable] int maxim = 0, minim = INF, miny = INF, imax, imin, iy; ^ user.cpp: In function ‘int main()’: user.cpp:69:9: warning: unused variable ‘maximy’ [-Wunused-variable] int maximy = INF, imaxy = INF; ^ user.cpp:69:23: warning: unused variable ‘imaxy’ [-Wunused-variable] int maximy = INF, imaxy = INF; ^ user.cpp: In function ‘int cautbin(int*, int, int)’: user.cpp:64:1: warning: control reaches end of non-void function [-Wreturn-type] } ^