Borderou de evaluare (job #414495)

Compilare: user.cpp: In function ‘int main()’: user.cpp:15:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:23:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:29:49: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:30:76: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:37:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] 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]