hdu---1084What Is Your Grade?
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What Is Your Grade?
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 7589 Accepted Submission(s): 2345
Problem Description
“Point, point, life of student!”
This is a ballad(歌谣)well known in colleges, and you must care about your score in this exam too. How many points can you get? Now, I told you the rules which are used in this course.
There are 5 problems in this final exam. And I will give you 100 points if you can solve all 5 problems; of course, it is fairly difficulty for many of you. If you can solve 4 problems, you can also get a high score 95 or 90 (you can get the former(前者) only when your rank is in the first half of all students who solve 4 problems). Analogically(以此类推), you can get 85、80、75、70、65、60. But you will not pass this exam if you solve nothing problem, and I will mark your score with 50.
Note, only 1 student will get the score 95 when 3 students have solved 4 problems.
I wish you all can pass the exam!
Come on!
This is a ballad(歌谣)well known in colleges, and you must care about your score in this exam too. How many points can you get? Now, I told you the rules which are used in this course.
There are 5 problems in this final exam. And I will give you 100 points if you can solve all 5 problems; of course, it is fairly difficulty for many of you. If you can solve 4 problems, you can also get a high score 95 or 90 (you can get the former(前者) only when your rank is in the first half of all students who solve 4 problems). Analogically(以此类推), you can get 85、80、75、70、65、60. But you will not pass this exam if you solve nothing problem, and I will mark your score with 50.
Note, only 1 student will get the score 95 when 3 students have solved 4 problems.
I wish you all can pass the exam!
Come on!
Input
Input contains multiple test cases. Each test case contains an integer N (1<=N<=100, the number of students) in a line first, and then N lines follow. Each line contains P (0<=P<=5 number of problems that have been solved) and T(consumed time). You can assume that all data are different when 0<p.
A test case starting with a negative integer terminates the input and this test case should not to be processed.
A test case starting with a negative integer terminates the input and this test case should not to be processed.
Output
Output the scores of N students in N lines for each case, and there is a blank line after each case.
Sample Input
45 06:30:174 07:31:274 08:12:124 05:23:1315 06:30:17-1
Sample Output
100909095100
AC代码:
/* 水题一枚,不卡时,完全模拟求出结果即可; 这里作为一次代码练习。 题目中注意两个细节: 一个是每个样例后都有一个空行; 另一个是当只有一个人做出4题时,是95分,不是90分,这点题目描述没说清楚。 细节很重要,这两个点也卡了我20分钟,还是比较浪费时间的。*/#include <stdio.h>#include <string.h>#include <math.h>#include <stdlib.h>#define N 110typedef struct LNode{ int num; int t; int a,b,c; int sorce;}LNode;LNode f[N];void cmd(LNode f[N],int n);int main(){ int i,j,k=0;int flag=0; freopen("in.txt","r",stdin); int n,m; while(scanf("%d",&n)){ if(n==-1) break; for(i=0;i<n;i++){ scanf("%d %d:%d:%d",&f[i].t,&f[i].a,&f[i].b,&f[i].c); f[i].num=i+1;//一开始的顺序! } cmd(f,n);//排序 for(i=0;i<n;i++) if(f[i].t==5) f[i].sorce=100; else break; j=i; //第j-1个为做对4题; m=4; int fen=90; while(m){ int num=0; for(i=j;i<n;i++){ if(f[i].t==m) num++; else break; } int kk=i; k=num/2; //k个+5分的; if(num==1) k=1; for(i=j;i<j+num;i++){ if(k){ f[i].sorce=fen+5; k--; } else f[i].sorce=fen; } j=kk; fen=fen-10; m--; }//前面5-1的统计完毕! 下面统计没做出题目的; for(i=j;i<n;i++) f[i].sorce=50; LNode p; for(i=0;i<n;i++) for(j=0;j<n-i-1;j++){ if(f[j].num>f[j+1].num){ p=f[j];f[j]=f[j+1];f[j+1]=p; } } for(i=0;i<n;i++) printf("%d\n",f[i].sorce); printf("\n"); } return 0;}void cmd(LNode f[N],int n){ int i,j,k;LNode m; for(i=0;i<n;i++) for(j=0;j<n-i-1;j++) if(f[j].t<f[j+1].t){ m=f[j];f[j]=f[j+1];f[j+1]=m; } else if(f[j].t==f[j+1].t){ if(f[j].a>f[j+1].a){ m=f[j];f[j]=f[j+1];f[j+1]=m; } else if(f[j].a==f[j+1].a){ if(f[j].b>f[j+1].b){ m=f[j];f[j]=f[j+1];f[j+1]=m; } else if(f[j].b==f[j+1].b){ if(f[j].c>f[j+1].c){ m=f[j];f[j]=f[j+1];f[j+1]=m; } } } }}
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