Compilare: main.cpp: In function 'int main()': main.cpp:26:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (j * 2 < dp.size()) ~~~~~~^~~~~~~~~~~ main.cpp:11:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("fractii2.in", "r", stdin); ^ main.cpp:12:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("fractii2.out", "w", stdout); ^