Time Limit: 10000/3000 MS (Java/Others) Memory Limit: 32768/10000 K (Java/Others)
Total Submission(s): 17036 Accepted Submission(s):
4337
#include<stdio.h>
#include<string.h>
#include<algorithm>
using namespace std;
#define MAX 1100
bool cmp(int a,int b)
{
return a<b;
}
int a[MAX];
int b[MAX];
int c[MAX];
int d,str[300000];
int main()
{
int n,m,j,i;
int k=1,l;
while(scanf("%d%d%d",&l,&n,&m)!=EOF)
{
for(i=0;i<l;i++)
scanf("%d",&a[i]);
for(i=0;i<n;i++)
scanf("%d",&b[i]);
for(i=0;i<m;i++)
scanf("%d",&c[i]);
int len=0;
for(i=0;i<n;i++)
{
for(j=0;j<m;j++)
{
str[len++]=b[i]+c[j];
}
}
sort(str,str+len,cmp);
int ok;
printf("Case %d:\n",k++);
int s;
scanf("%d",&s);
for(i=0;i<s;i++)
{
scanf("%d",&d);
ok=0;
for(j=0;j<l;j++)
{
int left = 0,right = len,mid = 0;
int goal = d - a[j];
while(right >= left)
{
mid = (right + left) >> 1;
if(str[mid] < goal)
left = mid + 1;
else if(str[mid] > goal)
right = mid - 1;
else
{
ok=1;
break;
}
}
if(ok)
break;
}
if(ok)
printf("YES\n");
else
printf("NO\n");
}
}
return 0;
}
hdoj 2141 Can you find it?【二分查找+暴力】
原文:http://www.cnblogs.com/tonghao/p/4689940.html