uva 10635 LCS转LIS

时间:2023-03-09 17:08:51
uva 10635 LCS转LIS

这道题两个数组都没有重复的数字,用lcs的nlogn再适合不过了

#include <iostream>
#include <string>
#include <cstring>
#include <cstdlib>
#include <cstdio>
#include <cmath>
#include <algorithm>
#include <stack>
#include <queue>
#include <cctype>
#include <vector>
#include <iterator>
#include <set>
#include <map>
#include <sstream>
using namespace std; #define mem(a,b) memset(a,b,sizeof(a))
#define pf printf
#define sf scanf
#define spf sprintf
#define pb push_back
#define debug printf("!\n")
#define MAXN 1005
#define MAX(a,b) a>b?a:b
#define blank pf("\n")
#define LL long long
#define ALL(x) x.begin(),x.end()
#define INS(x) inserter(x,x.begin())
#define pqueue priority_queue
#define INF 0x3f3f3f3f int n,m,v; int q,p,top; int a[*],b[*],c[*],pos[*],stk[*]; void lis(int len)
{
mem(stk,);
top = ;
stk[] = -;
for(int i=;i<=len;i++)
{
if(c[i]>stk[top])
{
stk[++top] = c[i];
}
else
{
int lo=,hi=top,mid;
while(lo<=hi)
{
mid = (lo+hi)>>;
if(c[i]>stk[mid]) lo = mid+;
else hi = mid -;
}
stk[lo] = c[i];
}
}
} int main()
{
int i,j;
int t,kase=;
sf("%d",&t);
while(t--)
{
sf("%d%d%d",&n,&p,&q);
mem(pos,);
mem(c,);
v=;
for(i=;i<=p+;i++)
{
sf("%d",&a[i]);
pos[a[i]] = i;
}
for(i=;i<=q+;i++)
{
sf("%d",&b[i]);
if(pos[b[i]]) c[v++] = pos[b[i]];
}
lis(v);
pf("Case %d: %d\n",kase++,top);
}
}