5 条题解

  • 0
    @ 2023-12-10 16:40:55
    /****************************************
    Note:
    ****************************************/
    #include <queue>
    #include <math.h>
    #include <stack>
    #include <vector>
    #include <stdio.h>
    #include <iostream>
    #include <vector>
    #include <iomanip>
    #include <string.h>
    #include <cstring>
    #include <algorithm>
    #define int long long
    using namespace std;
    const int N = 1e6 + 10;
    const int INF = 0x3f3f3f3f;
    int a[N];
    int dp[N];
    int f[N];
    int n;
    int maxx = -1;
    signed main(){
    	ios::sync_with_stdio(false);
    	cin.tie(0);
    	cout.tie(0);
    	while(cin >> a[n+1])
    //		cin >> a[n+1];
    		n++;
    	int len = 0;
    	dp[len] = INF;
    	for(int i=1;i<=n;i++){
    		if(a[i]<=dp[len])
    			dp[++len]=a[i];
    		else{
    			int l,r;
    			l = 0,r = len;
    			while(l<r){
    				int mid = l + r + 1 >> 1;
    				if(dp[mid] >= a[i])
    					l = mid;
    				else
    					r = mid - 1;
    			}
    			dp[l+1] = a[i];
    		}
    	}
    	cout << len << endl;
    	
    	len = 0;
    	dp[len] = -INF;
    	for(int i=1;i<=n;i++){
    		if(a[i]>dp[len])
    			dp[++len]=a[i];
    		else{
    			int l,r;
    			l = 0,r = len;
    			while(l<r){
    				int mid = l + r + 1 >> 1;
    				if(dp[mid] < a[i])
    					l = mid;
    				else
    					r = mid - 1;
    			}
    			dp[l+1] = a[i];
    		}
    	}
    	cout << len << endl;
    	return 0;
    }
    
    

    信息

    ID
    641
    时间
    1000ms
    内存
    256MiB
    难度
    7
    标签
    递交数
    292
    已通过
    65
    上传者