i want to calculate the T(n) for the two algorithms

i want to know the time complexity for the following two algorithms void main (){-----------------------------------------T(n) for(int a=1 ; a<=20 ; a++) {------------? if(a%2==0) -------------? cout<<"value is Even"; --------? else cout<<'valuevis Odd";--------? } }

 void main (){-----------------------------------------T(n)
 int x=1; {------------?
    int a=1;  -------------?
       while(a<=n){--------?
       x=x*a; -------------?
       a=a+2; -------------? 

    }
    cout<<x;
  }