Compilare: main.cpp: In function 'int binarySearch(std::vector<int>&, int)': main.cpp:36:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(best + (1<<step) < v.size() && v[best + (1<<step)] <= value) best += (1<<step); ~~~~~~~~~~~~~~~~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:54:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("input", "r", stdin); ^ main.cpp:7:43: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] #define fo(x) freopen(#x".in", "r", stdin);freopen(#x".out", "w", stdout); ^ main.cpp:58:7: note: in expansion of macro 'fo' fo(orase1); ^~ main.cpp:7:74: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] #define fo(x) freopen(#x".in", "r", stdin);freopen(#x".out", "w", stdout); ^ main.cpp:58:7: note: in expansion of macro 'fo' fo(orase1); ^~ main.cpp:68:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &k); ^ main.cpp:71:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", dist + i); ^