A1036 Boys vs Girls (25 points | find elements, with detailed notes, logical analysis)

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EDITORIAL

• Ideas analysis
  • string-type female and male student information retention requirements
  • int type fscore and mscore save the boys and girls the highest score lowest score
    • Initialization fscore-1, mscore maximum value 101
    • According to sex, size fraction iterative update:
      • female和male
      • fscore and mscore
• The title is simple, not repeat them
  • 15 minutes a topic

Test Case

• input:
  3
  Joe M Math990112 89
  Mike M CS991301 100
  Mary F EE990830 95
  
  output:
  Mary EE990830
  Joe Math990112
  6
  
  input:
  1
  Jean M AA980920 60
  
  output:
  Absent
  Jean AA980920
  NA
  

ac Code

• #include <iostream>
  using namespace std;
  
  int main()
  {
      int n;
      scanf("%d", &n);
      string female, male;
      int fscore = -1, mscore = 101;
  
      for(int i=0; i<n; i++)
      {
          string name, sex, num;
          int score;
          cin >> name >> sex >> num;
          scanf("%d", &score);
  
          if(sex == "F")
          {
              if(fscore < score)
              {
                  fscore = score;
                  female = name + " " + num;
              }
          }
          else if (mscore > score)
          {
              mscore = score;
              male = name + " " + num;
          }
      }
      if(fscore != -1)
          cout << female << endl;
      else
          printf("Absent\n");
      if(mscore != 101)
          cout << male << endl;
      else
          printf("Absent\n");
      if(mscore != 101 && fscore != -1)
          printf("%d", fscore-mscore);
      else
          printf("NA\n");
  
      return 0;
  }