Borderou de evaluare (job #185229)

Compilare: user.cpp: In function ‘void grep(std::vector<node*>, std::string)’: user.cpp:46:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:56:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:64:52: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:65:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:38:9: warning: unused variable ‘s’ [-Wunused-variable] user.cpp: In function ‘int main()’: user.cpp:123:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:149:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:151:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:80:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:81:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]