[公告] 計程上課練習1&2

[jtouch (Woodstock)]

#include<iostream> // 從螢幕 input or output
#include<fstream> //因為要從檔案抓、寫資料
#include<string> //用到字串
#include<vector> //用到向量
using namespace std;
void get_names(vector<string> & names);
void print_summary(const vector<string> & name,const vector<int> & count);
void initialize(vector <int> & count);
void tally(vector <int> & count);
int main()
{
        vector <string> cand_names(5);
        vector <int> vote_counts(5);
        get_names(cand_names);
        initialize(vote_counts);//歸零
        tally(vote_counts);
        print_summary(cand_names,vote_counts);
        return 0;
}
void get_names(vector<string> & names)
{
        ifstream names_in;
        int cand;
        names_in.open("candnames.txt");
               for (cand=1;cand<=4;cand++)
                      names_in>>names[cand];
        names_in.close();
}
void print_summary(const vector<string> & name,const vector<int> & count)
{
        int cand;
        for (cand=1;cand<=4;cand++)
               cout << name[cand]<<" : "<< count[cand]<<endl;
}
void initialize(vector <int> & count)
{
        int cand;
        for (cand=1;cand<=4;cand++) count[cand]=0;
}
void tally(vector <int> & count)
{
        int cand;
        ifstream vote_in;
        vote_in.open("votes.txt");
        while(vote_in>>ws &&!vote_in.eof())
        {
                vote_in >> cand;
                if(cand>=1 && cand<=4) count[cand]++;
                else cout <<"invalid vote: "<< cand << endl;
        }
        vote_in.close();
}

// 要在 .cpp 同一目錄做 candnames.txt 和 votes.txt  兩個檔


--
※ 發信站: 批踢踢實業坊(ptt.cc) 
◆ From: 140.112.7.59