Compilare: main.cpp: In function 'int main()': main.cpp:58:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<last.size()-1;i++) ~^~~~~~~~~~~~~~ main.cpp:87:26: warning: unused variable 'cate2' [-Wunused-variable] int cate2=last[i+1]-poz1-1; ^~~~~ main.cpp:27:41: warning: 'cate' may be used uninitialized in this function [-Wmaybe-uninitialized] int i,j,jj,t,n,k,acm,prec,poz1,poz2,cate; ^~~~