Borderou de evaluare (job #283250)

Compilare: user.cpp: In function ‘void period_detect(int)’: user.cpp:355:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In function ‘int main()’: user.cpp:413:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:414:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp: In function ‘void period_detect(int)’: user.cpp:399:3: warning: ‘l’ may be used uninitialized in this function [-Wuninitialized]