Borderou de evaluare (job #88463)

Compilare: user.cpp: In function ‘void update(int, int)’: user.cpp:9:38: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] user.cpp: In function ‘int query(int)’: user.cpp:16:33: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] user.cpp: In function ‘int main()’: user.cpp:41:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:42:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:43:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:46:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]