So easy
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 991 Accepted Submission(s): 547
Problem Description
Small W gets two files. There are n integers in each file. Small W wants to know whether these two files are same. So he invites you to write a program to check whether these two files are same. Small W thinks that two files are same when they have the same integer set.
For example file A contains (5,3,7,7),and file B contains (7,5,3,3). They have the same integer set (3,5,7), so they are same.
Another sample file C contains(2,5,2,5), and file D contains (2,5,2,3).
The integer set of C is (2,5),but the integer set of D is (2,3,5),so they are not same.
Now you are expected to write a program to compare two files with size of n.
Input
Multi test cases (about 100). Each case contain three lines. The first line contains one integer n represents the size of file. The second line contains n integers a1,a2,a3,…,an - represents the content of the first file. The third line contains n integers b1,b2,b3,…,bn - represents the content of the second file.
Process to the end of file.
1≤n≤100
1≤ai,bi≤1000000000
Output
For each case, output "YES" (without quote) if these two files are same, otherwise output "NO" (without quote).
Sample Input
3
1 1 2
1 2 2
4
5 3 7 7
7 5 3 3
4
2 5 2 3
2 5 2 5
3
1 2 3
1 2 4
Sample Output
YES
YES
NO
NO
水题……
1 //2016.8.12
2 #include<iostream>
3 #include<cstdio>
4 #include<set>
5
6 using namespace std;
7
8 int main()
9 {
10 int n;
11 while(cin>>n)
12 {
13 set<int> seta;
14 set<int> setb;
15 int a, b;
16 bool fg = true;
17 for(int i = 0; i < n; i++)
18 {
19 scanf("%d", &a);
20 seta.insert(a);
21 }
22 for(int i = 0; i < n; i++)
23 {
24 scanf("%d", &b);
25 setb.insert(b);
26 }
27 if(seta.size()!=setb.size())
28 fg = false;
29 else{
30 set<int>::iterator it;
31 for(it = seta.begin(); it != seta.end(); it++)
32 {
33 if(setb.count(*it)==0)
34 fg = false;
35 }
36 }
37 if(fg)cout<<"YES"<<endl;
38 else cout<<"NO"<<endl;
39 }
40
41 return 0;
42 }
HDU5058
原文：http://www.cnblogs.com/Penn000/p/5766762.html
