Compilare: user.cpp: In function ‘int main()’: user.cpp:26:13: warning: unused variable ‘x’ [-Wunused-variable] int n,p,x,min1,nr,j;long long sum=0; ^ user.cpp:26:20: warning: unused variable ‘nr’ [-Wunused-variable] int n,p,x,min1,nr,j;long long sum=0; ^ user.cpp: In function ‘bool cmp(rr, rr)’: user.cpp:18:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:67:19: warning: ‘cab’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<'\n'<<cab; ^