动态规划-LIS1

https://vjudge.net/contest/297216?tdsourcetag=s_pctim_aiomsg#problem/J

#include<bits/stdc++.h>
using namespace std;
const int maxn=1e5+10;
int a[maxn];
int b[maxn];
int main()
{
    int t;
    scanf("%d",&t);
    while(t--)
    {
        int n;
        scanf("%d",&n);
        memset(b,0,sizeof(b));
        for(int i=1; i<=n; i++)
            scanf("%d",&a[i]);
        b[1]=a[1];
        printf("1");
        int len=1;
        for(int i=2; i<=n; i++)
        {
            int p=lower_bound(b+1,b+1+len,a[i])-b;
            printf(" %d",p);
            if(a[i]>b[len])
                b[++len]=a[i];
            else
            {
                p=lower_bound(b+1,b+1+len,a[i])-b;
                b[p]=a[i];
            }
//            for(int i=1;i<=len;i++)
//                printf("%d ",b[i]);
        }
        printf("
");
    }
}