Compilare: user.cpp:2:78: warning: ISO C++ forbids declaration of ‘main’ with no type [-Wreturn-type] std::ifstream f("cufar.in");long long s,i=1,j,t,n,x,k,o[1<<20],z[1<<20];main(){f>>t>>n;if(t==1)n=1;for(;i<n;++i)f>>x>>k,z[x]=k;for(i=2;i<1e6;++i)if(!o[i])for(j=i;j<1e6;j+=i)if(++o[j]==z[j])s+=i;std::ofstream("cufar.out")<<s;} ^