Use a hash table to reflect two lists of numbers.
It seems that each number cannot be less that -32768 and cannot be more that 32767.But I heard that it was not true."maxn" should be 100000,I suggest.Or you can try to find it...
Here is my code:
#include<iostream>
#include<string.h>
#define maxn 100000
using namespace std;
long n,m;
bool a[2*maxn+7],b[2*maxn+7];
long f(long x)
{
return x+maxn+1;
}
int main()
{
/*
freopen("data.in","r",stdin);
freopen("data.out","w",stdout);
//*/
memset(a,false,sizeof(a));
memset(b,false,sizeof(b));
cin>>n;
for(long i=1;i<=n;i++)
{
long t;
cin>>t;
a[f(t)]=true;
}
cin>>m;
for(long i=1;i<=n;i++)
{
long t;
cin>>t;
b[f(t)]=true;
}
for(long i=-maxn;i<=maxn;i++)
if(a[f(i)]&&b[f(10000-i)])
{
cout<<"YES"<<endl;
return 0;
}
cout<<"NO"<<endl;
return 0;
}
posted on 2010-09-21 16:11
lee1r 閱讀(176)
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題目分類：數據結構