Compilare: user.cpp: In function ‘void citire()’: user.cpp:18: warning: format ‘%s’ expects type ‘char*’, but argument 2 has type ‘char (*)[20]’ user.cpp:13: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:14: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:15: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘void rezolva()’: user.cpp:32: warning: ‘inceput’ may be used uninitialized in this function user.cpp:32: warning: ‘sfarsit’ may be used uninitialized in this function