Compilare: user.cpp: In function ‘int main()’: user.cpp:12:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(e=2;e<=k;e++) if(c[e]>max) {max=c[e]; j=e;} ^ user.cpp:17:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(e=2;e<=k;e++) if(c[e]>max) {max=c[e]; j=e;} ^ user.cpp:5:29: warning: ‘j’ may be used uninitialized in this function [-Wmaybe-uninitialized] int main(){unsigned n,k,e,i,j,max,a; ^