Compilare: main.cpp: In function 'void computeDp(int*, const std::vector<std::pair<int, bool> >&)': main.cpp:38:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < v.size(); ++ i) { ~~^~~~~~~~~~ main.cpp:61:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int s = 0; s <= S && s <= v.size() / 2; ++ s) ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:67:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("pitmutare.in", "r", stdin); ^ main.cpp:68:42: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("pitmutare.out", "w", stdout); ^