【杭电oj】5499 - SDOI（结构体排序，水）
SDOI
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 752 Accepted Submission(s): 288
Problem Description
The Annual National Olympic of Information(NOI) will be held.The province of Shandong hold a Select(which we call SDOI for short) to choose some people to go to the NOI.
n ( n \leq 100 ) people comes to the Select and there is
m (m \leq 50) people who can go to the NOI.
According to the tradition and regulation.There were two rounds of the SDOI, they are so called "Round 1" and "Round 2", the full marks of each round is 300.
All the n people take part in Round1 and Round2, now the original mark of every person is known. The rule of SDOI of ranking gets to the "standard mark". For each round there is a highest original mark,let's assume that is x.(it is promised that not all person in one round is 0,in another way, x > 0). So for this round,everyone's final mark equals to his/her original mark * ( 300 / x ).
After we got everyone's final mark in both round.We calculate the Ultimate mark of everyone as 0.3 * round1's final mark + 0.7 * round2's final mark.It is so great that there were no two persons who have the same Ultimate mark.
After we got everyone's Ultimate mark.We choose the persons as followed:
To encourage girls to take part in the Olympic of Information.In each province,there has to be a girl in its teams.
1. If there is no girls take part in SDOI,The boys with the rank of first m enter the team.
2. If there is girls, then the girl who had the highest score(compared with other girls) enter the team,and other(boys and other girls) m-1 people with the highest mark enter the team.
Just now all the examination had been finished.Please write a program, according to the input information of every people(Name, Sex ,The original mark of Round1 and Round2),Output the List of who can enter the team with their Ultimate mark decreasing.
According to the tradition and regulation.There were two rounds of the SDOI, they are so called "Round 1" and "Round 2", the full marks of each round is 300.
All the n people take part in Round1 and Round2, now the original mark of every person is known. The rule of SDOI of ranking gets to the "standard mark". For each round there is a highest original mark,let's assume that is x.(it is promised that not all person in one round is 0,in another way, x > 0). So for this round,everyone's final mark equals to his/her original mark * ( 300 / x ).
After we got everyone's final mark in both round.We calculate the Ultimate mark of everyone as 0.3 * round1's final mark + 0.7 * round2's final mark.It is so great that there were no two persons who have the same Ultimate mark.
After we got everyone's Ultimate mark.We choose the persons as followed:
To encourage girls to take part in the Olympic of Information.In each province,there has to be a girl in its teams.
1. If there is no girls take part in SDOI,The boys with the rank of first m enter the team.
2. If there is girls, then the girl who had the highest score(compared with other girls) enter the team,and other(boys and other girls) m-1 people with the highest mark enter the team.
Just now all the examination had been finished.Please write a program, according to the input information of every people(Name, Sex ,The original mark of Round1 and Round2),Output the List of who can enter the team with their Ultimate mark decreasing.
Input
There is an integer
T(T \leq 100) in the first line for the number of testcases and followed
T testcases.
For each testcase, there are two integers n and m in the first line (n \geq m), standing for the number of people take part in SDOI and the allowance of the team.Followed with n lines,each line is an information of a person. Name(A string with length less than 20,only contain numbers and English letters),Sex(male or female),the Original mark of Round1 and Round2 (both equal to or less than 300) separated with a space.
For each testcase, there are two integers n and m in the first line (n \geq m), standing for the number of people take part in SDOI and the allowance of the team.Followed with n lines,each line is an information of a person. Name(A string with length less than 20,only contain numbers and English letters),Sex(male or female),the Original mark of Round1 and Round2 (both equal to or less than 300) separated with a space.
Output
For each testcase, output "The member list of Shandong team is as follows:" without Quotation marks.
Followed m lines,every line is the name of the team with their Ultimate mark decreasing.
Followed m lines,every line is the name of the team with their Ultimate mark decreasing.
Sample Input
2 10 8 dxy male 230 225 davidwang male 218 235 evensgn male 150 175 tpkuangmo female 34 21 guncuye male 5 15 faebdc male 245 250 lavender female 220 216 qmqmqm male 250 245 davidlee male 240 160 dxymeizi female 205 190 2 1 dxy male 300 300 dxymeizi female 0 0
Sample Output
The member list of Shandong team is as follows: faebdc qmqmqm davidwang dxy lavender dxymeizi davidlee evensgn The member list of Shandong team is as follows: dxymeizi Hint For the first testcase: the highest mark of Round1 if 250,so every one's mark times(300/250)=1.2, it's same to Round2. The Final of The Ultimate score is as followed faebdc 298.20 qmqmqm 295.80 davidwang 275.88 dxy 271.80 lavender 260.64 dxymeizi 233.40 davidlee 220.80 evensgn 201.00 tpkuangmo 29.88 guncuye 14.40 For the second testcase,There is a girl and the girl with the highest mark dxymeizi enter the team, dxy who with the highest mark,poorly,can not enter the team.
Source
BestCoder Round #59 (div.2)
简单结构体的排序题。
代码如下：
#include <stdio.h>
#include <algorithm>
#include <string.h>
using namespace std;
struct people
{
char name[22];
char sex[10];
double round[3];
double grade;
}per[101];
bool cmp1(people a,people b)
{
return a.grade>b.grade;
}
int main()
{
int u,n,m; //计算次数 总人数 目标人数
int dot; //有无女生参加选拔，0为无，1为有
double max[3]; //存放最大成绩
double mark[3]; //两次的基本分倍数
int girl; //是否输出了女孩？0为假
scanf ("%d",&u) ;
while (u--)
{
scanf ("%d %d",&n,&m);
memset (per,0,sizeof(per));
dot=0;
girl=0;
/*for (int i=0;i<n;i++)
{
scanf ("%s %s %lf %lf",&per[i].name,&per[i].sex,&per[i].round[1],&per[i].round[2]);
}
for (int i=max[1]=0;i<n;i++)
{
if (per[i].round[1]>max[1])
{
max[1]=per[i].round[1];
}
}
for (int i=max[2]=0;i<n;i++)
{
if (per[i].round[2]>max[2])
{
max[2]=per[i].round[2];
}
}*/
scanf ("%s",per[0].name);
scanf ("%s",per[0].sex);
if (per[0].sex[0]=='f')
dot=1;
scanf ("%lf",&per[0].round[1]);
max[1]=per[0].round[1];
scanf ("%lf",&per[0].round[2]);
max[2]=per[0].round[2];
for (int i=1;i<n;i++)
{
scanf ("%s",per[i].name);
scanf ("%s",per[i].sex);
if (per[i].sex[0]=='f')
dot=1;
scanf ("%lf",&per[i].round[1]);
if (per[i].round[1]>max[1])
{
max[1]=per[i].round[1];
}
scanf ("%lf",&per[i].round[2]);
if (per[i].round[2]>max[2])
{
max[2]=per[i].round[2];
}
}
if (!m)
{
printf ("The member list of Shandong team is as follows:\n");
continue;
}
printf ("The member list of Shandong team is as follows:\n");
mark[1]=300.0/max[1];
mark[2]=300.0/max[2];
for (int i=0;i<n;i++)
{
per[i].grade=per[i].round[1]*mark[1]*0.3+per[i].round[2]*mark[2]*0.7;
}
sort(per,per+n,cmp1);
/*printf ("\n");
for (int i=0;i<n;i++)
{
printf ("%s %lf\n",per[i].name,per[i].grade);
}
printf ("max=%lf %lf\n",max[1],max[2]);
printf ("max=%lf %lf\n",mark[1],mark[2]);
printf ("\n"); */ //测试sort排序正误
if (!dot)
{
for (int i=0;i<m;i++)
{
printf ("%s\n",per[i].name);
}
}
else
{
for (int i=0;i<m-1;i++)
{
printf ("%s\n",per[i].name);
if (per[i].sex[0]=='f') girl=1;
}
if (girl)
{
printf ("%s\n",per[m-1].name);
}
else
{
for (int j=m-1;j<n;j++)
{
if (per[j].sex[0]=='f')
{
printf ("%s\n",per[j].name);
break;
}
}
}
}
}
return 0;
}