adevar.cpp: In function `int prelucrare()': adevar.cpp:60: warning: control reaches end of non-void function adevar.cpp: In function `void backt()': adevar.cpp:64: warning: unused variable `int ev' adevar.cpp: In function `int main()': adevar.cpp:97: warning: unused variable `int w' adevar.cpp:116:2: warning: no newline at end of file