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考察
- 还是不要int的格式化输出 要不用字符串存id。
- 最后一组cin cout太慢了会超时,考这个点也是无语
#include<iostream>
#include<algorithm>
#include<cstring>
using namespace std;
struct student
{
char id[15];
char name[15];
int score;
}stu[100001];
bool cmp1(student a, student b)
{
return strcmp(a.id, b.id) < 0;
}
bool cmp2(student a, student b)
{
if (strcmp(a.name, b.name) != 0)
return strcmp(a.name, b.name) < 0;
else
return strcmp(a.id, b.id) < 0;
}
bool cmp3(student a, student b)
{
if (a.score != b.score)
return a.score < b.score;
else
return strcmp(a.id, b.id) < 0;
}
int main()
{
int n, m;
cin >> n >> m;
for (int i = 0; i < n; i++)
{
cin>>stu[i].id >> stu[i].name >> stu[i].score;
}
if (m == 1)sort(stu, stu + n, cmp1);
else if (m == 2) sort(stu, stu + n, cmp2);
else if (m == 3)sort(stu, stu + n, cmp3);
for (int i = 0; i < n; i++)
{
printf("%s %s %d
", stu[i].id, stu[i].name, stu[i].score);
}
}