Compilare: user.cpp:4:23: warning: integer overflow in expression [-Woverflow] const int INF=(1<<31)-1; ^ user.cpp: In member function ‘void MinHeap::push(int)’: user.cpp:22:17: warning: unused variable ‘p’ [-Wunused-variable] int p=l; ^ user.cpp: In member function ‘void MinHeap::pop()’: user.cpp:26:18: warning: unused variable ‘f’ [-Wunused-variable] bool f=true; ^ user.cpp: In member function ‘void MinHeap::downHeap(int)’: user.cpp:46:19: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(min(v[p*2],v[p*2+1])<v[p]) ^ user.cpp: In function ‘int main()’: user.cpp:67:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("algsort.in","r",stdin); ^ user.cpp:68:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("algsort.out","w",stdout); ^ user.cpp:69:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:72:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&nr); ^