Compilare: user.cpp: In instantiation of ‘sseBitset<N>& sseBitset<N>::operator|=(const sseBitset<N>&) [with unsigned int N = 160u]’: user.cpp:133:16: required from here user.cpp:68:2: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In instantiation of ‘sseBitset<N>::reference::reference(int, uint64_t*) [with unsigned int N = 160u; uint64_t = long long unsigned int]’: user.cpp:57:30: required from ‘sseBitset<N>::reference sseBitset<N>::operator[](int) [with unsigned int N = 160u]’ user.cpp:129:16: required from here user.cpp:19:15: warning: ‘sseBitset<160u>::reference::bucketPos’ will be initialized after [-Wreorder] int bucket, bucketPos; ^ user.cpp:18:13: warning: ‘uint64_t* sseBitset<160u>::reference::arr’ [-Wreorder] uint64_t *arr; ^ user.cpp:22:3: warning: when initialized here [-Wreorder] reference(int pos, uint64_t *arr): ^ user.cpp: In function ‘int main()’: user.cpp:115:22: 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:116:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &N, &M); ^ user.cpp:125:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &x, &y); ^ user.cpp:134:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n", &Q); ^ user.cpp:138:36: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%c %d %d\n", &op, &x, &y); ^