Eroare de compilare: user.cpp: In function ‘void sum(std::vector<int>&, std::vector<int>)’: user.cpp:32:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<b.size() || t; ++i) { ^ user.cpp:33:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] int ca=(i<a.size())?a[i]:0; ^ user.cpp:34:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] int cb=(i<b.size())?b[i]:0; ^ user.cpp:37:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i<a.size()) a[i]=r; ^ user.cpp: In function ‘void prd(std::vector<int>&, long long int)’: user.cpp:44:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<a.size() || t; ++i) { ^ user.cpp:45:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] int ca=(i<a.size())?a[i]:0; ^ user.cpp:48:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i<a.size()) a[i]=r; ^ user.cpp: In function ‘void prt(std::vector<int>&)’: user.cpp:54:3: error: ‘g’ was not declared in this scope g<<a.back(); ^