钱能第二版 chapter 2 10 11 答案

T10  母牛生小牛问题
#include <iostream> #include <iomanip> #include <algorithm> using namespace std; void main() { int n,total; cout<<"input the years:/n"; cin>>n; if (n<=3) total=0; else if(n>3&&n<=6) total=n-3; else total=(n-5)*(n-6)/2+n-3; cout<<"the total is :"<<total<<endl; } %%%%%%%%%%%%%%%%%%%%%%%%%%%%%
T11 球反弹落地程序
#include <iostream> #include <iomanip> #include <algorithm> using namespace std; void main() { double h=100; double temp,s=0; temp=h; for (int i=1;i<=9;i++) { temp*=0.5; s+=temp*2;} cout<<"when the tenth time the high:"<<temp<<endl; cout<<"the total distance is :"<<s+100<<endl; }

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