Borderou de evaluare (job #18243)

Compilare: user.cpp: In function ‘int main()’: user.cpp:9:20: warning: unused variable ‘ori’ [-Wunused-variable] user.cpp:9:24: warning: unused variable ‘c’ [-Wunused-variable] user.cpp:7:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:8:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:25:21: warning: ‘p’ may be used uninitialized in this function [-Wuninitialized]