一.问题:
为了用事实说明挖掘机技术到底哪家强,PAT 组织了一场挖掘机技能大赛。现请你根据比赛结果统计出技术最强的那个学校。
输入格式:
输入在第 1 行给出不超过 105 的正整数 N,即参赛人数。随后 N 行,每行给出一位参赛者的信息和成绩,包括其所代表的学校的编号(从 1 开始连续编号)、及其比赛成绩(百分制),中间以空格分隔。
输出格式:
在一行中给出总得分最高的学校的编号、及其总分,中间以空格分隔。题目保证答案唯一,没有并列。
输入样例:
6
3 65
2 80
1 100
2 70
3 40
3 0
输出样例:
2 150
二.思路:
具体看代码,这一题告诉我们搞一个副本有时候很有用
三.代码实现(C语言描述):
#include<stdio.h>
typedef struct person
{
int school;
int grades ;
}People;
//快速排序,从大到小排序数据
void quick_sort(int *School,int low,int high)
{
int i = low;
int j = high;
int base = low;
int temp = School[low];
int t = 0;
if(i > j)
{
return;
}
while(i < j)
{
while(School[j] <= temp &&i < j)
{
j--;
}
while(School[i] >= temp &&i < j)
{
i++;
}
t = School[i];
School[i] = School[j];
School[j] = t;
}
School[base] = School[i];
School[i] = temp;
//递归
quick_sort(School,low,i-1);
quick_sort(School,i+1,high);
}
int main()
{
//输入数据
int N = 0;
scanf("%d",&N);
int School[N] = {0};
int cpy_School[N] = {0};
People people[N];
for(int i =0;i < N;i++)
{
scanf("%d %d",&people[i].school,&people[i].grades);
}
//整理数据
int sum = 0;
for(int i =0,p=0;i < N;i++)
{
p = (people[i].school)-1;
School[p] += people[i].grades;
cpy_School[p] += people[i].grades;
sum = sum < (p+1) ?(p+1):sum;
}
//从大到小排序数据
quick_sort(School,0,sum-1);
for(int i =0;i < sum;i++)
{
if(School[0] == cpy_School[i])
{
//输出数据
printf("%d %d\n",i+1,School[0]);
}
}
return 0;
}