Compilare: user.cpp:8: warning: integer overflow in expression user.cpp: In function ‘void cit()’: user.cpp:82: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:88: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result user.cpp: In function ‘int main()’: user.cpp:167: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:168: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp: In function ‘int term()’: user.cpp:47: warning: ‘x’ is used uninitialized in this function user.cpp:71: warning: ‘r’ may be used uninitialized in this function user.cpp:71: note: ‘r’ was declared here user.cpp: In function ‘int eval()’: user.cpp:21: warning: ‘x’ may be used uninitialized in this function user.cpp: In function ‘int fact()’: user.cpp:71: warning: ‘r’ may be used uninitialized in this function