Compilare: main.cpp: In function 'int main()': main.cpp:14:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<s.size();++i){ ~^~~~~~~~~ main.cpp:23:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(j<ss.size()){ ~^~~~~~~~~~ main.cpp:26:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int e=0;e<j-s.size()+1;++e){ ~^~~~~~~~~~~~~ main.cpp:29:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int e=0;e<s.size();++e){ ~^~~~~~~~~ main.cpp:33:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int e=0;e<j-s.size()+1;++e){ ~^~~~~~~~~~~~~