Compilare: main.cpp: In function 'int main()': main.cpp:12:22: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] 12 | if (a!=0 && b==0 &c == 0) | ~^~~ main.cpp:14:21: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] 14 | if (a==0 &&b==0 & c==0) | ~^~~ main.cpp:19:21: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] 19 | if (a==0 &&b!=0 & c!=0) | ~^~~ main.cpp:21:29: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] 21 | if (a!=0 &&b!=0 & c!=0) | ~^~~ In file included from /usr/include/c++/12.2.1/istream:39, from /usr/include/c++/12.2.1/sstream:38, from /usr/include/c++/12.2.1/complex:45, from /usr/include/c++/12.2.1/ccomplex:39, from /usr/include/c++/12.2.1/x86_64-pc-linux-gnu/bits/stdc++.h:54, from main.cpp:1: In member function 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long long int) [with _CharT = char; _Traits = std::char_traits<char>]', inlined from 'int main()' at main.cpp:24:14: /usr/include/c++/12.2.1/ostream:202:25: warning: 'p' may be used uninitialized [-Wmaybe-uninitialized] 202 | { return _M_insert(__n); } | ~~~~~~~~~^~~~~ main.cpp: In function 'int main()': main.cpp:7:19: note: 'p' was declared here 7 | long long n,i,p,a,b,c; | ^