Borderou de evaluare (job #466140)

Compilare: user.cpp: In function ‘void build(int, int, int)’: user.cpp:34:19: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] user.cpp: In function ‘long long int query(int, int, int)’: user.cpp:44:18: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] user.cpp: In function ‘int main()’: user.cpp:51:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:52:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp: In function ‘void read(int&)’: user.cpp:17:45: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:22:45: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]