Compilare: user.cpp: In function ‘void findSolution(int, int)’: user.cpp:20:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (index == sequenceLength) ~~~~~~^~~~~~~~~~~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:58:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < n; ++i) ~~^~~ user.cpp:50:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("biti.in", "r", stdin); ^ user.cpp:51:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("biti.out", "w", stdout); ^ user.cpp:53:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^