Compilare: main.cpp: In function 'void solve()': main.cpp:11:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<cuv.size();++i) ~^~~~~~~~~~~ main.cpp:15:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<s.size();++i) ~^~~~~~~~~ main.cpp:17:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<cuv.size();++i) ~^~~~~~~~~~~ main.cpp:20:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=1;j<s.size();++j) ~^~~~~~~~~ main.cpp:29:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=1;j<s.size();++j) ~^~~~~~~~~ main.cpp:38:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=1;j<s.size();++j) ~^~~~~~~~~