Compilare: user.cpp: In function ‘int caut(int)’: user.cpp:8:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 1; i < d.size() - 1; i++ ) ^ user.cpp:9:67: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( d[ i-1 ] < x && d[ i + 1 ] < x && i < ( d.size() / 2 ) ) ^ user.cpp:17:1: warning: control reaches end of non-void function [-Wreturn-type] } ^