Borderou de evaluare (job #548906)

Eroare de compilare: user.cpp:6:9: error: ‘std::set<int> index’ redeclared as different kind of symbol /usr/include/string.h:482:1: error: previous declaration of ‘const char* index(const char*, int)’ user.cpp: In function ‘int main()’: user.cpp:20:14: error: ‘index’ does not have class type user.cpp:25:17: error: ‘index’ does not have class type user.cpp:9:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:10:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]