Borderou de evaluare (job #43681)

Compilare: user.cpp: In function ‘int main()’: user.cpp:6:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:7:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:10:5: warning: ‘n’ is used uninitialized in this function [-Wuninitialized] user.cpp:19:15: warning: ‘sl’ may be used uninitialized in this function [-Wuninitialized] user.cpp:19:11: warning: ‘sc’ may be used uninitialized in this function [-Wuninitialized]