Compilare: user.cpp: In function ‘int lee2(int, int)’: user.cpp:35: warning: unused variable ‘k1’ user.cpp: In function ‘void citire()’: user.cpp:65: warning: unused variable ‘x’ user.cpp:65: warning: unused variable ‘y’ user.cpp:69: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:74: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:79: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘int lee(int, int)’: user.cpp:107: warning: no return statement in function returning non-void