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Re:你的输入有一点问题,只能输入一次,要是用while(cin>>i>>j)应该就行了^^^^In Reply To:陷阱我避免了阿 数据测试都对的 poj是不是有问题阿 Posted by:strideryu at 2009-03-07 17:22:47 > 代码贴上:
> #include<iostream>
> using namespace std;
> int cycle_length(int k);
> int main()
> {
> int i,j,k,temi,temj,tem,answer;
> cin>>i>>j;
> if(i>j){
> temj=i;
> temi=j;
> }
> else {
> temj=j;
> temi=i;
> }
> //用temi,temj来计算,temi<=temj
> for(k=temi;k<=temj;k++){
> if(k==temi)answer=cycle_length(k);
> else {
> tem=cycle_length(k);
> if(tem>answer)answer=tem;
> }
> }
> cout<<i<<" "<<j<<" "<<answer;
> return 0;
> }
> //--------------------------------------------------
> int cycle_length(int k)
> {
> int c_l=1;
> while(k!=1){
> if(k%2==0)
> k/=2;
> else
> k=(3*k+1);
> c_l++;
> }
> return c_l;
> }
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