Compilare: user.cpp: In member function ‘void SuffixArray::init(int, int)’: user.cpp:69:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 1; i < aux.size(); i++) { ^ user.cpp: In function ‘bool Try(int)’: user.cpp:114:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 1; i < aux.size(); i++){ ^ user.cpp: In function ‘int main()’: user.cpp:139:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("poze.in","r",stdin); ^ user.cpp:140:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("poze.out","w",stdout); ^ user.cpp:142:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for (scanf("%d",&t); t; t--) { ^ user.cpp:143:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&n,&m,&k); ^ user.cpp:148:45: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&prefix[0][i][j]); ^