Compilare: user.cpp: In function ‘int zero(int, unsigned int)’: user.cpp:13:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ( a[m] == value ) ^ user.cpp:15:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while( a[m] == value ) ^ user.cpp:21:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ( a[m] < value ) ^ user.cpp: In function ‘int unu(int, unsigned int)’: user.cpp:40:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ( a[m] == value ) ^ user.cpp:42:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while( a[m] == value ) ^ user.cpp:48:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ( a[m] < value ) ^ user.cpp: In function ‘int doi(int, unsigned int)’: user.cpp:67:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ( a[m] == value ) ^ user.cpp:69:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while( a[m] == value ) ^ user.cpp:75:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ( a[m] < value ) ^