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Submission #1001068

# Submission time Handle Problem Language Result Execution time Memory
1001068 2024-06-18T14:00:28 Z 0npata Sequence (APIO23_sequence) C++17
0 / 100
 2000 ms 29760 KB 
#include "sequence.h"
#include<bits/stdc++.h>
using namespace std;

#define vec vector

bool check(int cnt_med, int cnt_lw, int cnt_hi) {
	return cnt_med >= 1 && cnt_hi <= cnt_med+cnt_lw && cnt_lw <= cnt_med+cnt_hi;
}

int sequence(int N, std::vector<int> A) {

	int ans = 0;
	for(int i =0; i<N; i++) {
		vec<int> cnt(N);
		set<int> vals;
		int lw = 0;
		int hi = 0;
		int med = A[i];
		for(int j = i; j<N; j++) {
			cnt[A[j]]++;
			vals.insert(A[j]);
			if(A[j] < med) {
				lw++;
			}
			else {
				hi++;
			}
			if(check(cnt[med], lw, hi)) ans = max(ans, cnt[med]);
			if(vals.upper_bound(med) != vals.end()) {
				int hmed = *vals.upper_bound(med);
				int lw2 = lw+cnt[med];
				int hi2 = hi-cnt[hmed];
				if(check(cnt[hmed], lw2, hi2)) {
					ans = max(ans, cnt[hmed]);
					med = hmed;
					lw = lw2;
					hi = hi2;
				}
			}
			if(vals.find(med) != vals.begin()) {
				auto it = vals.find(med);
				it--;
				int lmed = *it;
				int lw2 = lw-cnt[lmed];
				int hi2 = hi+cnt[med];
				if(check(cnt[lmed], lw2, hi2)) {
					ans = max(ans, cnt[lmed]);
					med = lmed;
					lw = lw2;
					hi = hi2;
				}
			}
		}
	}


	return ans;
}

Subtask #1
0.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Incorrect 0 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Incorrect 0 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Execution timed out 2050 ms 21120 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #4
0.0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0.0 / 13.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2051 ms 29760 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Incorrect 0 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #7
0.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Incorrect 0 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -