Compilare: user.cpp: In function ‘int getPivot(std::vector<unsigned int>&, int, int)’: user.cpp:12:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (array[i] < pivotValue) ^ user.cpp: In function ‘int main()’: user.cpp:59:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < sorted.size(); i++) ^ user.cpp:47:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("algsort.in", "r", stdin); ^ user.cpp:48:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("algsort.out", "w", stdout); ^