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  • 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("!
    ")
    #define MAXN 1005
    #define MAX(a,b) a>b?a:b
    #define blank pf("
    ")
    #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[250*250],b[250*250],c[250*250],pos[250*250],stk[250*250];
    
    void lis(int len)
    {
        mem(stk,0);
        top = 0;
        stk[0] = -1;
        for(int i=1;i<=len;i++)
        {
            if(c[i]>stk[top])
            {
                stk[++top] = c[i];
            }
            else
            {
                int lo=1,hi=top,mid;
                while(lo<=hi)
                {
                    mid = (lo+hi)>>1;
                    if(c[i]>stk[mid]) lo = mid+1;
                    else hi = mid -1;
                }
                stk[lo] = c[i];
            }
        }
    }
    
    int main()
    {
        int i,j;
        int t,kase=1;
        sf("%d",&t);
        while(t--)
        {
            sf("%d%d%d",&n,&p,&q);
            mem(pos,0);
            mem(c,0);
            v=1;
            for(i=1;i<=p+1;i++)
            {
                sf("%d",&a[i]);
                pos[a[i]] = i;
            }
            for(i=1;i<=q+1;i++)
            {
                sf("%d",&b[i]);
                if(pos[b[i]]) c[v++] = pos[b[i]];
            }
            lis(v);
            pf("Case %d: %d
    ",kase++,top);
        }
    }
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  • 原文地址:https://www.cnblogs.com/qlky/p/5665382.html
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