PAT(B)1015. 德才论 (25)

最新推荐文章于 2021-02-26 15:49:56 发布

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最新推荐文章于 2021-02-26 15:49:56 发布

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分类专栏： PAT(B)

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本文探讨了算法、数据结构、机器学习等领域的关键概念及其实际应用，包括排序算法、动态规划、神经网络等，旨在为读者提供深入理解并解决复杂问题的方法。

#include <iostream>

#include <vector>
#include <algorithm>
#include <cstdio>
using namespace std;

struct stu{
  int num;
  int scored;
  int scorec;
  bool operator<(const stu &tmp) const{            //重载运算符
    if (scorec+scored != tmp.scored+tmp.scorec)
      return scored+scorec > tmp.scored+tmp.scorec;
    else if (scored != tmp.scored)
      return scored > tmp.scored;
    else return num < tmp.num;
  }
};

int main()
{
  int n, l, h;
  vector<stu> stu1, stu2, stu3, stu4;
  stu tmp;
  int ct = 0;

  scanf("%d %d %d",&n,&l,&h);
  for (int i = 0; i < n; ++i){
    scanf("%d %d %d", &tmp.num, &tmp.scored, &tmp.scorec);
    if (tmp.scorec >= l&&tmp.scored >= l){
      ++ct;
      if (tmp.scorec >= h&&tmp.scored >= h) stu1.push_back(tmp);
      else if (tmp.scored >= h) stu2.push_back(tmp);
      else if (tmp.scored>=tmp.scorec) stu3.push_back(tmp);
      else stu4.push_back(tmp);
    }
  }

  sort(stu1.begin(), stu1.end());
  sort(stu2.begin(), stu2.end());
  sort(stu3.begin(), stu3.end());
  sort(stu4.begin(), stu4.end());

  printf("%d\n", ct);

  //用下面这段输出时，有两组数据运行超时
  /*for (auto c : stu1) cout << c.num << ' ' << c.scored << ' ' << c.scorec << endl;  for (auto c : stu2) cout << c.num << ' ' << c.scored << ' ' << c.scorec << endl;  for (auto c : stu3) cout << c.num << ' ' << c.scored << ' ' << c.scorec << endl;  for (auto c : stu4) cout << c.num << ' ' << c.scored << ' ' << c.scorec << endl;*/    for (auto i = stu1.begin(); i != stu1.end(); ++i)    printf("%d %d %d\n", i->num, i->scored, i->scorec);  for (auto i = stu2.begin(); i != stu2.end(); ++i)    printf("%d %d %d\n", i->num, i->scored, i->scorec);  for (auto i = stu3.begin(); i != stu3.end(); ++i)    printf("%d %d %d\n", i->num, i->scored, i->scorec);  for (auto i = stu4.begin(); i != stu4.end(); ++i)    printf("%d %d %d\n", i->num, i->scored, i->scorec);  return 0;}