Submission #502066

#	Time	Username	Problem	Language	Result	Execution time	Memory
502066		ismoilov	Longest beautiful sequence (IZhO17_subsequence)	C++14	100 / 100	5357 ms	7664 KiB

subsequence

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define IOS ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
#define all(x) (x).begin(), (x).end()
#define fp(a,i,c) for(int (a) = (i); (a) < (c); (a)++)
#define fpp(a,i,c) for(int (a) = (i); (a) <= (c); (a)++)
#define fm(a,i,c) for(int (a) = (i); (a) > (c); (a)--)
#define fmm(a,i,c) for(int (a) = (i); (a) >= (c); (a)--)
const int maxx = 1e6+6;
int a[maxx], b[maxx], c[1<<20+1], dp[maxx], pd[maxx], p[maxx];
void S(){
	int n;
	cin >> n;
	fpp(i,1,n)
		cin >> a[i];
	fpp(i,1,n)
		cin >> b[i], dp[i] = 1;
	fp(i,0,1<<20)
		c[i] = __builtin_popcount(i);
	fpp(i,1,n){
		int k = b[i];
		if(k <= c[a[i]]){
			fmm(j,i-1,1){
				if(c[a[i] & a[j]] == k){
					if(dp[i] <= dp[j]){
						dp[i] = dp[j] + 1;
						p[i] = j;
					}
				}
				if(dp[i] > pd[j])
					break;
			}
		}
		pd[i] = max(pd[i-1], dp[i]);
	}
	int m = max_element(dp + 1, dp + n + 1) - dp;
	
	vector <int> ans = {m};
	while(p[m]){
		ans.push_back(p[m]);
		m = p[m];
	}
	reverse(all(ans));
	cout << ans.size() << "\n";
	for(auto it : ans)
		cout << it << " ";
}
int main()
{
	IOS;
	S();
}

Compilation message (stderr)

subsequence.cpp:11:30: warning: suggest parentheses around '+' inside '<<' [-Wparentheses]
   11 | int a[maxx], b[maxx], c[1<<20+1], dp[maxx], pd[maxx], p[maxx];
      |                            ~~^~
subsequence.cpp: In function 'void S()':
subsequence.cpp:7:28: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    7 | #define fpp(a,i,c) for(int (a) = (i); (a) <= (c); (a)++)
      |                            ^
subsequence.cpp:15:2: note: in expansion of macro 'fpp'
   15 |  fpp(i,1,n)
      |  ^~~
subsequence.cpp:7:28: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    7 | #define fpp(a,i,c) for(int (a) = (i); (a) <= (c); (a)++)
      |                            ^
subsequence.cpp:17:2: note: in expansion of macro 'fpp'
   17 |  fpp(i,1,n)
      |  ^~~
subsequence.cpp:6:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    6 | #define fp(a,i,c) for(int (a) = (i); (a) < (c); (a)++)
      |                           ^
subsequence.cpp:19:2: note: in expansion of macro 'fp'
   19 |  fp(i,0,1<<20)
      |  ^~
subsequence.cpp:7:28: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    7 | #define fpp(a,i,c) for(int (a) = (i); (a) <= (c); (a)++)
      |                            ^
subsequence.cpp:21:2: note: in expansion of macro 'fpp'
   21 |  fpp(i,1,n){
      |  ^~~
subsequence.cpp:9:28: warning: unnecessary parentheses in declaration of 'j' [-Wparentheses]
    9 | #define fmm(a,i,c) for(int (a) = (i); (a) >= (c); (a)--)
      |                            ^
subsequence.cpp:24:4: note: in expansion of macro 'fmm'
   24 |    fmm(j,i-1,1){
      |    ^~~

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