Borderou de evaluare (job #472525)

Compilare: user.cpp: In function ‘int main()’: user.cpp:31:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:37:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:83:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:85:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:87:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:90:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:101:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:9:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:10:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]