实习笔试题（1：pdd）

//
//  main.cpp
//  pdd
//
//  Created by 吴珝君 on 2019/3/11.
//  Copyright © 2019年 闲着也是贤者. All rights reserved.
//

#include 
#include 
#include 
    //找最小序的第一个字符
using namespace std;
  int  findfirst(string str)
{
    if (str.empty())
    {
        return -1;
    }
    int arr[26] = {0};
    vector vchar;//
    for (int i =0 ; i < str.length(); i++)
    {
        if (str[i] >='A' && str[i]<='Z')
        {
            str[i] = str[i] +32;
        }
    }//处理字符串
    for (int i =0 ; i < str.length(); i++)
    {
    
            if (arr[str[i] -'a'] ==0)
            {
                arr[str[i] -'a'] =1;
                vchar.push_back(str[i]);
            }
            else
            {
               
                vector::iterator it = find(vchar.begin(), vchar.end(), str[i]);
                vector::iterator t = it;
                if (++t!=vchar.end())//当前字符是最后一个字符
                {
                    if (*it >= *t)
                    {
                        vchar.erase(it);//删除当前字符
                        vchar.push_back(str[i]);

                    }
                }
            }
        }

    for (int i =0; i < vchar.size(); i++)
    {
        cout << vchar[i]<<" ";
    }
    
    cout << vchar[0];
    
    
    return 0;
}








int main(int argc, const char * argv[]) {
    // insert code here...
    findfirst("xabXY");
    findfirst("aa");
    std::cout << "Hello, World!\n";
    return 0;
}

//
//  main.cpp
//  pdd
//
//  Created by 吴珝君 on 2019/3/11.
//  Copyright © 2019年 闲着也是贤者. All rights reserved.
//

#include 
#include 
#include 
#include 
    //找最小序的第一个字符
using namespace std;

//robbank
class position_bank
{
public:
    int num_position;
    int num_money;
    position_bank(int position, int money)
    {
        num_position = position;
        num_money = money;
        
    }
      position_bank( const position_bank & pb)
    
    {
        this->num_money = pb.num_money;
        this->num_position = pb.num_position;
    }
};
bool operator<(position_bank pb1,position_bank pb2)
{
    return pb2.num_money < pb1.num_money;//从大到小排序饿
}
int robbank(vector vbank , int d)
{
    
    int sum =0;
    sort(vbank.begin(), vbank.end());
    int t = 0;
    for (int i =0; i < vbank.size(); i++)
    {
        
        for (int j = i+1; j < vbank.size(); j++)
        {
            
            if (abs(vbank[i].num_position - vbank[j].num_position)>=d )
            {
                
                t = vbank[i].num_money +vbank[j].num_money;
                break;
            }
        }
        sum = sum > t? sum :t;
    }
    
    
    cout << sum;
    
    return 0;
}






int main(int argc, const char * argv[]) {
    // insert code here...
    int number =0,d =0;//银行个数
    cin >> number;
    cin >> d;
    vector vbank;
    for (int i =0;  i < number; i++)
    {
        int position =0;
        int money = 0;
        cin >>position ;
        cin >> money;
        position_bank pb(position, money);
        vbank.push_back(pb);
        
    }
    robbank(vbank, d);
    std::cout << "Hello, World!\n";
    return 0;
}