Compilare: user.cpp: In function ‘int main()’: user.cpp:19:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<s.size()-1;i++) ^ user.cpp:20:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=i;j<=s.size()-1;j++) ^ user.cpp:32:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0,j=0;i<s.size(),j<p.size();i++,j++) ^ user.cpp:32:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0,j=0;i<s.size(),j<p.size();i++,j++) ^ user.cpp:32:18: warning: value computed is not used [-Wunused-value] for(i=0,j=0;i<s.size(),j<p.size();i++,j++) ^ user.cpp:37:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<s.size();i++) ^ user.cpp:43:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<s.size();i++) ^