Compilare: main.cpp: In function 'void solve()': main.cpp:16:11: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else] 16 | if(n[i]!='0') | ^ main.cpp:28:26: warning: left operand of comma operator has no effect [-Wunused-value] 28 | for(j=0,l=i;j<lm,l<i+lm;j++,l++) | ~^~~ main.cpp:11:15: warning: unused variable 'nr' [-Wunused-variable] 11 | int lm,ln,nr; | ^~ main.cpp: In function 'int main()': main.cpp:52:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 52 | for(;i<init.size();i++) | ~^~~~~~~~~~~~