Compilare: user.cpp: In function ‘std::vector<int> tryPoly(int)’: user.cpp:90:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < pathLower.size() - 1; i++) path[j++] = pathLower[i]; ^ user.cpp: In function ‘int main()’: user.cpp:97:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("comitat.in", "r", stdin); ^ user.cpp:98:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("comitat.out", "w", stdout); ^ user.cpp:100:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); n++; ^ user.cpp:102:41: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &P[i].x, &P[i].y); ^ user.cpp:105:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &L); ^