初学循环的常规解法，不足请指出，谢谢！

int n,value,sumodd=0,sumeven=0,i=1;
cin >> n;
for (i = 1;i<=n;i=i+1){
    cin>>value;
    if (value%2==0) 
        sumeven =sumeven+value;
    else
        sumodd = sumodd +value;
}
cout<<sumodd<<endl<<sum<<endl;