Compilare: user.cpp: In function ‘int main()’: user.cpp:20:13: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] in >> W + 1; ^ user.cpp:21:13: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] in >> S + 1; ^ user.cpp:41:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < sol.size(); i++) out << sol[i] << ' '; ^