Compilare: user.cpp: In function ‘bool Find(int)’: user.cpp:20:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i != table[hashCode].size(); i++) ^ user.cpp: In function ‘void Delete(int)’: user.cpp:32:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i != table[hashCode].size(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:47:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("muzica.in", "r", stdin); ^ user.cpp:48:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("muzica.out", "w", stdout); ^ user.cpp:50:62: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d %d %d %d %d", &N, &M, &A, &B, &C, &D, &E); ^ user.cpp:54:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &x); Insert(x); ^