Submission #1050583

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1050583	2024-08-09 11:30:27	handlename	Longest beautiful sequence (IZhO17_subsequence)	C++17	0 / 100	1 ms	4700 KiB

subsequence

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define mp make_pair
#define float long double
const int MOD=1e9+7;
// const int MOD=998244353;
const int sqn=450;
const long double eps=1e-6;
const int dx[4]={0,0,1,-1};
const int dy[4]={1,-1,0,0};
long long power(long long a,long long b,long long p=MOD){
    long long res=1;
    while (b>0){
        if (b%2==1) res=(res*a)%p;
        b/=2;
        a=(a*a)%p;
    }
    return res;
}
int n,arr[100001],brr[100001];
// idea 1: dp1[x] = LBS ending with x
// idea 2: dp2[i][k] = max length of LBS ending with x
// over all x such that bitcount(x&i)=k
// for idea 2, we get O(1) transitions
// but we then need to update O(M) states in dp2
// idea 1 has O(M) transition, O(1) affected states
// idea 2 has O(1) transition, O(M) affected states
int dp[1100][1100][11],from[1100][1100][11],prv[100001];
// main idea is to split X into its left and right bits
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

subsequence.cpp: In function 'void runtc()':
subsequence.cpp:52:22: warning: suggest parentheses around comparison in operand of '|' [-Wparentheses]
   52 |             if (rbits<0 | rbits>10) continue;
      |                 ~~~~~^~

• Subtask 1: 0 / 7
• Subtask 2: 0 / 16
• Subtask 3: 0 / 17
• Subtask 4: 0 / 60