c++算法大全(2)

c++ 算法

cin>>a;

cout<<"please input n number"; cin>>n; sn=a; sum=a;

for(i=2;i<=n;i++) {

sum=sum*10+a; sn+=sum; }

cout<<"Sn="< void main() {

double h1=100,h2=100,sum=0.0; int i;

for(i=1;i<=10;i++) {

sum+=h2; h1=h1/2.0; h2=h1*2; }

cout<<"sum="< void main() {

int number,i; number=1; for(i=10;i>1;i--) number=(number+1)*2;

cout<<"number="<<number<<endl; }