HDU1236 排名 题解

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4 5 25
10 10 12 13 15
CS004 3 5 1 3
CS003 5 2 4 1 3 5
CS002 2 1 2
CS001 3 2 3 5
1 2 40
10 30
CS001 1 2
2 3 20
10 10 10
CS000000000000000001 0
CS000000000000000002 2 1 2
0

3
CS003 60
CS001 37
CS004 37
0
1
CS000000000000000002 20

思路：都会的思路；

不是思路难，是有点繁的题目，速度是关键。

这样的题目是用来训练细心和编码速度的。

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

struct Stu
{
	char *num;
	int grade;
	bool operator<(const Stu b) const
	{
		if (grade == b.grade) return strcmp(num, b.num) == -1;
		return grade > b.grade;
	}
};

Stu stus[1001];//N
int grades[12];//M
char stuNum[22];

int main()
{
	int N, M, G;
	while (scanf("%d %d %d", &N, &M, &G) == 3)
	{
		for (int i = 1; i <= M; i++)
		{
			scanf("%d", &grades[i]);
		}		
		int count = 0;
		for (int i = 0; i < N; i++)
		{
			int totalGra = 0, totalNum = 0, m, id;
			scanf("%s %d", stuNum, &m);
			for (int j = 0; j < m; j++)
			{
				scanf(" %d", &id);//没看清楚题意就动手，以至浪费时间
				totalGra += grades[id];
			}
			if (totalGra >= G)
			{
				stus[count].grade = totalGra;
				stus[count].num = (char *) malloc(sizeof(stuNum)+1);
				strcpy(stus[count].num, stuNum);
				count++;
			}
		}
		sort(stus, stus+count);
		printf("%d\n", count);
		for (int j = 0; j < count; j++)
		{
			printf("%s ", stus[j].num);
			printf("%d\n", stus[j].grade);
			free(stus[j].num);
		}
	}
	return 0;
}

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HDU1236 排名 题解

标签：des   style   class   blog   code   color   

原文地址：http://blog.csdn.net/kenden23/article/details/31013775