PTA甲级考试真题练习28——1028 List Sorting

题目

思路

水题

代码

#include 
#include 
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
using namespace std;
#define nmax 105
#define inf 999999
int num, order;
typedef struct info
{
     
	long ID;
	string name;
	int score;
}info;
vector<info> vec;
bool cmp1(const info& a, const info& b)
{
     
	return a.ID < b.ID;
}
bool cmp2(const info& a, const info& b)
{
     
	if (a.name != b.name)
		return a.name < b.name;
	else
		return a.ID < b.ID;
}
bool cmp3(const info& a, const info& b)
{
     
	if (a.score != b.score)
		return a.score < b.score;
	else
		return a.ID < b.ID;
}
int main()
{
     
	cin >> num >> index;
	for (int i = 0; i < num; ++i)
	{
     
		info m;
		cin >> m.ID >> m.name >> m.score;
		vec.push_back(m);
	}
	switch (index)
	{
     
	case 1:
		sort(vec.begin(), vec.end(), cmp1);
		break;
	case 2:
		sort(vec.begin(), vec.end(), cmp2);
		break;
	case 3:
		sort(vec.begin(), vec.end(), cmp3);
		break;
	default:
			break;
	}
	for (auto& p:vec)
	{
     
		printf("%06d %s %d\n", p.ID, p.name.c_str(), p.score);
	}
	return 0;
}