Compilare: user.cpp: In function ‘int main()’: user.cpp:37:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<g[q[prim]].size(); i++) ^ user.cpp:56:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<g[q[prim]].size(); i++) ^ user.cpp:16:18: warning: unused variable ‘p’ [-Wunused-variable] int i, m, n, p, x, y, a, b, prim, ultim; ^