Borderou de evaluare (job #86509)

Compilare: user.cpp: In function ‘void update(int, int)’: user.cpp:7:32: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] user.cpp: In function ‘int query(int)’: user.cpp:13:29: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] user.cpp: In function ‘int main()’: user.cpp:21:6: warning: unused variable ‘m’ [-Wunused-variable] user.cpp:21:8: warning: unused variable ‘ok’ [-Wunused-variable] user.cpp:21:13: warning: unused variable ‘x’ [-Wunused-variable] user.cpp:19:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:20:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:23:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:26:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]