Compilare: user.cpp: In function ‘int main()’: user.cpp:38:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0, j=0; i<p.size() && j+1<p.size(); i++) { ^ user.cpp:38:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0, j=0; i<p.size() && j+1<p.size(); i++) { ^ user.cpp:41:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(j+1 < p.size() && p[j+1] - p[j] < epsilon) egale++, j++; ^