Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:48: warning: unused variable ‘j’ user.cpp:46: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:47: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:49: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:51: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result user.cpp: At global scope: user.cpp:61: error: redefinition of ‘int n’ user.cpp:10: error: ‘int n’ previously declared here user.cpp: In function ‘int main()’: user.cpp:64: error: redefinition of ‘int main()’ user.cpp:44: error: ‘int main()’ previously defined here user.cpp:66: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:67: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:68: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:69: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result