九度 1533 最长上升子序列

 

/*
 * LIS.cpp
 *
 *  Created on: 2014-5-6
 *      Author: wangzhu
 */

#include<cstdio>
#include<iostream>
#include<algorithm>
using namespace std;
#define NMAX 100001
int num[NMAX], arr[NMAX];
bool cmp(int a, int b) {
    return a < b;
}
int main() {
//    freopen("data.in", "r", stdin);
    int t, j, len;
    while (~scanf("%d", &t)) {
        for (int i = 0; i < t; i++) {
            scanf("%d", num + i);
        }
        len = 0;
        for (int i = 0; i < t; i++) {
            //查找当前数组中的数在上升序列中的位置
            j = lower_bound(arr, arr + len, num[i], cmp) - arr;
            arr[j] = num[i];
            len = max(j + 1, len);
        }
        printf("%d\n", len);
    }
    return 0;
}