Compilare: user.cpp: In function ‘std::pair<T*, T*> split(T*, int)’: user.cpp:58:39: warning: control reaches end of non-void function [-Wreturn-type] make_pair(nod, tmp.second); } } ^ user.cpp: In function ‘T* kth(T*, int)’: user.cpp:83:69: warning: control reaches end of non-void function [-Wreturn-type] if(nod->st->siz < pos) return kth(nod->dr, pos-nod->st->siz-1); } ^ user.cpp: In function ‘int main()’: user.cpp:95:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("secv8.in", "r", stdin); ^ user.cpp:96:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("secv8.out", "w", stdout); ^ user.cpp:104:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &m, &junk); ^ user.cpp:106:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf(" %c", &op); ^ user.cpp:110:42: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &pos, &val); ^ user.cpp:114:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &x, &y); ^ user.cpp:118:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &pos); ^ user.cpp:122:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &x, &y); ^