Compilare: user.cpp: In function ‘int Query(int)’: user.cpp:107:9: warning: unused variable ‘val’ [-Wunused-variable] int val = B[pos / BS].B[pos % BS]; ^ user.cpp: In function ‘void ReadNMap()’: user.cpp:128:9: warning: unused variable ‘a’ [-Wunused-variable] int a, b, t; ^ user.cpp:128:12: warning: unused variable ‘b’ [-Wunused-variable] int a, b, t; ^ user.cpp:128:15: warning: unused variable ‘t’ [-Wunused-variable] int a, b, t; ^ user.cpp: In function ‘int main()’: user.cpp:157:46: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cumainilecurate.in", "r", stdin); ^ user.cpp:158:48: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cumainilecurate.out", "w", stdout); ^