奇安信笔试题目

奇安信笔试题目1.结束进程树2.队尾幸运编号

1.结束进程树
BFS就ok了
代码:

#include <iostream>
#include <vector>
#include<queue>
using namespace std;

int main(void)
{
 int temp;
 vector<int > num;
 vector<int > num1;
 vector<int > num2;
 while (cin >> temp)
  num.push_back(temp);
 queue<int> mm;
 mm.push(num[num.size() - 1]);//要删除哪个进程,
 num.pop_back();
 int count = 1;
 for (int i = 0; i < num.size(); i++)
 {
  if (i < num.size()/2)
   num1.push_back(num[i]);
  else
   num2.push_back(num[i]);
 }
if(find(num2.begin(),num2.end(),mm.front())==num2.end())
{
    cout<<0;
    return 0;
}
 while (!mm.empty())
 {
  int cnt = mm.front();//输出进程
  mm.pop();
  for (int i = 0; i < num2.size(); i++)
  {
   if (num2[i] == cnt)
   {
    count++;
    mm.push(num1[i]);
   }
  }
 }
 cout << count;
 return 0;
}

2.队尾幸运编号
约瑟夫问题

代码:

#include<iostream>
#include<vector>
using namespace std;
int main()
{
  int n;
  cin>>n;
  if(n<=1)
  {
  cout<<1;
  return 0;
  }
  int res=0;
  vector<int>a(n,1);

    for(int i=0;i<n;++i)
        a[i]=i+1;
    int j=0;
    while(a[n-1]!=0)
    {
        for(int i=0;i<n;++i)
        {
            if(a[i]==0)
                continue;
            else
                j++;
            if(j==5)
            {
                a[i]=0;
                j=0;
                res++;
            }
        }
    }
        cout<<res;
        system("pause");
        return 0;


}