Borderou de evaluare (job #404370)

Compilare: user.cpp: In function 'int main()': user.cpp:28:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:29:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:30:34: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp: In function 'short int nextc()': user.cpp:15:50: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:22:50: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp: In function 'int main()': user.cpp:50:24: warning: 'l' may be used uninitialized in this function [-Wuninitialized] user.cpp:50:37: warning: 'c' may be used uninitialized in this function [-Wuninitialized]