Borderou de evaluare (job #370381)

Compilare: user.cpp: In function ‘int main()’: user.cpp:42:4: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] user.cpp:9:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:10:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:12:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:15:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:61:1: warning: ‘poz’ may be used uninitialized in this function [-Wuninitialized] user.cpp:53:1: warning: ‘len’ may be used uninitialized in this function [-Wuninitialized]