Compilare: user.cpp: In function ‘int main()’: user.cpp:18:15: warning: unused variable ‘sum’ [-Wunused-variable] long long sum=0,i=0,j=0,p,d,st=1,dr=1000000000,mij,k,sol; ^ user.cpp:18:21: warning: unused variable ‘i’ [-Wunused-variable] long long sum=0,i=0,j=0,p,d,st=1,dr=1000000000,mij,k,sol; ^ user.cpp:18:25: warning: unused variable ‘j’ [-Wunused-variable] long long sum=0,i=0,j=0,p,d,st=1,dr=1000000000,mij,k,sol; ^ user.cpp:18:29: warning: unused variable ‘p’ [-Wunused-variable] long long sum=0,i=0,j=0,p,d,st=1,dr=1000000000,mij,k,sol; ^ user.cpp:11:16: warning: ‘sol’ may be used uninitialized in this function [-Wmaybe-uninitialized] nr=nr+n/p; ^ user.cpp:18:58: note: ‘sol’ was declared here long long sum=0,i=0,j=0,p,d,st=1,dr=1000000000,mij,k,sol; ^