Borderou de evaluare (job #182451)

Compilare: user.cpp: In function ‘int main()’: user.cpp:20:23: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] user.cpp:28:23: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] user.cpp:44:23: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] user.cpp:7:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:8:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:10:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:15:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:19:35: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:63:5: warning: ‘s2’ may be used uninitialized in this function [-Wuninitialized]