POJ_1002 487-3279

487-3279
Time Limit: 2000MS Memory Limit: 65536K
Total Submissions: 209902 Accepted: 36575

Description

Businesses like to have memorable telephone numbers. One way to make a telephone number memorable is to have it spell a memorable word or phrase. For example, you can call the University of Waterloo by dialing the memorable TUT-GLOP. Sometimes only part of the number is used to spell a word. When you get back to your hotel tonight you can order a pizza from Gino's by dialing 310-GINO. Another way to make a telephone number memorable is to group the digits in a memorable way. You could order your pizza from Pizza Hut by calling their ``three tens'' number 3-10-10-10.

The standard form of a telephone number is seven decimal digits with a hyphen between the third and fourth digits (e.g. 888-1200). The keypad of a phone supplies the mapping of letters to numbers, as follows:

A, B, and C map to 2
D, E, and F map to 3
G, H, and I map to 4
J, K, and L map to 5
M, N, and O map to 6
P, R, and S map to 7
T, U, and V map to 8
W, X, and Y map to 9

There is no mapping for Q or Z. Hyphens are not dialed, and can be added and removed as necessary. The standard form of TUT-GLOP is 888-4567, the standard form of 310-GINO is 310-4466, and the standard form of 3-10-10-10 is 310-1010.

Two telephone numbers are equivalent if they have the same standard form. (They dial the same number.)

Your company is compiling a directory of telephone numbers from local businesses. As part of the quality control process you want to check that no two (or more) businesses in the directory have the same telephone number.

Input

The input will consist of one case. The first line of the input specifies the number of telephone numbers in the directory (up to 100,000) as a positive integer alone on the line. The remaining lines list the telephone numbers in the directory, with each number alone on a line. Each telephone number consists of a string composed of decimal digits, uppercase letters (excluding Q and Z) and hyphens. Exactly seven of the characters in the string will be digits or letters.

Output

Generate a line of output for each telephone number that appears more than once in any form. The line should give the telephone number in standard form, followed by a space, followed by the number of times the telephone number appears in the directory. Arrange the output lines by telephone number in ascending lexicographical order. If there are no duplicates in the input print the line:

No duplicates.

Sample Input

12
4873279
ITS-EASY
888-4567
3-10-10-10
888-GLOP
TUT-GLOP
967-11-11
310-GINO
F101010
888-1200
-4-8-7-3-2-7-9-
487-3279

Sample Output

310-1010 2
487-3279 4
888-4567 3


一开始想到输入数据极限会有10万个,加上需要字符串的处理,所以选择建立一个长度为10万的long数组,对每个输入数据进行字符串到long的转换,快排,根据题目要求输出...最后发现超时了...其实根据题目要求,统计出现次数大于2的号码数...其实字符串的转换时必要的,所以应该选择更为好的排序算法...计数排序...定义了一个七维数组...下表分别为0-9....字符串转换后直接在对应下标进行定位自加。最后根据大于二输出即可...具体代码如下:

#include<iostream>
#include<string>
#define SIZE 100025
#define NUM num[10][10][10][10][10][10][10]
using namespace std;

long num[10][10][10][10][10][10][10];
int main()
{
	long n,i,j,k,a0,a1,a2,a3,a4,a5,a6;	
	char ph[10];
	bool res;
	string tmp;
	
	cin >> n;

	for(a0 = 0; a0 <= 9; a0++)
		for(a1 = 0; a1 <= 9; a1++)
			for(a2 = 0; a2 <= 9; a2++)
				for(a3 = 0; a3 <= 9; a3++)
					for(a4 = 0; a4 <= 9; a4++)
						for(a5 = 0; a5 <= 9; a5++)
							for(a6 = 0; a6 <= 9; a6++)
								num[a0][a1][a2][a3][a4][a5][a6] = 0;
							

	for(i = 1; i <= n; i++)
	{
		cin >> tmp;
		k = 0;
		//处理输入的字符串...
		for(j = 0; j < tmp.length(); j++)
		{
			if(tmp[j] >= '0' && tmp[j] <= '9')
			{
				ph[k] = tmp[j] - '0';
				k++;
			}
			else if(tmp[j] != '-')
			{
				switch(tmp[j])
				{
				case 'A':
				case 'B':
				case 'C':
					ph[k] = 2;
					k++;
					break;
				case 'D':
				case 'E':
				case 'F':
					ph[k] = 3;
					k++;
					break;
				case 'G':
				case 'H':
				case 'I':
					ph[k] = 4;
					k++;
					break;
				case 'J':
				case 'K':
				case 'L':
					ph[k] = 5;
					k++;
					break;
				case 'M':
				case 'N':
				case 'O':
					ph[k] = 6;
					k++;
					break;
				case 'P':
				case 'R':
				case 'S':
					ph[k] = 7;
					k++;
					break;
				case 'T':
				case 'U':
				case 'V':
					ph[k] = 8;
					k++;
					break;
				case 'W':
				case 'X':
				case 'Y':
					ph[k] = 9;
					k++;
					break;		
				default:
					break;
				}

			}
			
		}	

		num[ ph[0] ][ ph[1] ][ ph[2] ][ ph[3] ][ ph[4] ][ ph[5] ][ ph[6] ]++;
}

	res = true;
	for(a0 = 0; a0 <= 9; a0++)
		for(a1 = 0; a1 <= 9; a1++)
			for(a2 = 0; a2 <= 9; a2++)
				for(a3 = 0; a3 <= 9; a3++)
					for(a4 = 0; a4 <= 9; a4++)
						for(a5 = 0; a5 <= 9; a5++)
							for(a6 = 0; a6 <= 9; a6++)
								if(num[a0][a1][a2][a3][a4][a5][a6] > 1)
								{
									res = false;
									cout << a0 << a1 << a2 << "-" << a3 << a4 << a5 << a6 << " " << num[a0][a1][a2][a3][a4][a5][a6] << endl;
								}

	if(res)
		cout << "No duplicates." <<endl;
	return 0;
}




内容概要:该研究通过在黑龙江省某示范村进行24小时实地测试,比较了燃煤炉具与自动/手动进料生物质炉具的污染物排放特征。结果显示,生物质炉具相比燃煤炉具显著降低了PM2.5、CO和SO2的排放(自动进料分别降低41.2%、54.3%、40.0%;手动进料降低35.3%、22.1%、20.0%),但NOx排放未降低甚至有所增加。研究还发现,经济性和便利性是影响生物质炉具推广的重要因素。该研究不仅提供了实际排放数据支持,还通过Python代码详细复现了排放特征比较、减排效果计算和结果可视化,进一步探讨了燃料性质、动态排放特征、碳平衡计算以及政策建议。 适合人群:从事环境科学研究的学者、政府环保部门工作人员、能源政策制定者、关注农村能源转型的社会人士。 使用场景及目标:①评估生物质炉具在农村地区的推广潜力;②为政策制定者提供科学依据,优化补贴政策;③帮助研究人员深入了解生物质炉具的排放特征和技术改进方向;④为企业研发更高效的生物质炉具提供参考。 其他说明:该研究通过大量数据分析和模拟,揭示了生物质炉具在实际应用中的优点和挑战,特别是NOx排放增加的问题。研究还提出了多项具体的技术改进方向和政策建议,如优化进料方式、提高热效率、建设本地颗粒厂等,为生物质炉具的广泛推广提供了可行路径。此外,研究还开发了一个智能政策建议生成系统,可以根据不同地区的特征定制化生成政策建议,为农村能源转型提供了有力支持。
评论
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值