Eroare de compilare: user.cpp: In function ‘int cauta(int, int, char*)’: user.cpp:14: warning: comparison between signed and unsigned integer expressions user.cpp:13: warning: unused variable ‘sir’ user.cpp: In function ‘int main()’: user.cpp:48: error: ‘atoi’ was not declared in this scope user.cpp:26: warning: unused variable ‘stop’ user.cpp:28: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:29: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result