Compilare: main.cpp: In function 'int binarySearch(long long int, const std::vector<long long int>&)': main.cpp:8:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i + step < v.size() && v[i + step] <= value) ~~~~~~~~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:41:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (pos + 1 < powers.size() && powers[pos + 1] - x < x - power) ~~~~~~~~^~~~~~~~~~~~~~~ main.cpp:19:16: warning: unused variable 'exponent' [-Wunused-variable] int n, base, exponent, pos; ^~~~~~~~ main.cpp:23:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%lld", &n, &m); ^ main.cpp:36:28: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%lld", &x); ^