Compilare: user.cpp: In function ‘void ciclu(int)’: user.cpp:30:13: warning: unused variable ‘i’ [-Wunused-variable] int k=0,i,y,z; ^ user.cpp: In function ‘int next(int)’: user.cpp:27:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘void euler()’: user.cpp:68:18: warning: ‘vf’ may be used uninitialized in this function [-Wmaybe-uninitialized] ciclu(vf); ^ user.cpp:69:22: warning: ‘poz’ may be used uninitialized in this function [-Wmaybe-uninitialized] inserare(poz); ^