Compilare: main.cpp: In function 'bool query(f64, f64)': main.cpp:153:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (pos + msk < bup.size() && bup[pos + msk].first < a) ~~~~~~~~~~^~~~~~~~~~~~ main.cpp:165:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (pos + msk < bdn.size() && bdn[pos + msk].first < a) ~~~~~~~~~~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:215:13: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for (int i = 0; i < q; ++i) ^~~ main.cpp:219:17: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' return 0; } ^~~~~~