oj.uz

답안 #1013117

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1013117 2024-07-03T08:07:46 Z Nurislam 3단 점프 (JOI19_jumps) C++17
19 / 100
 289 ms 127928 KB 
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define ff first
#define ss second
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define int long long

const int N = 5e3+5;

int n, q;
int sp[20][N];
int dp[N][N];
int a[N];
int get(int l, int r){
	int x = 0;
	while((1<<x) <= (r-l+1))x++;
	x--;
	r = r-(1<<x)+1;
	return max(sp[x][l], sp[x][r]);
}
signed main(){
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);
	cout.tie(nullptr);
	int n;
	cin >> n;
	for(int i = 1; i <= n; i++){
		cin >> a[i];
		sp[0][i] = a[i];
		if(i > 2)dp[i-2][i] = a[i-2] + a[i-1] + a[i];
	}
	for(int i = 1; i < 20; i++){
		int len = (1 << (i-1));
		for(int j = 1; j <= n; j++){
			sp[i][j] = max(sp[i-1][j], sp[i-1][min(n, j+len)]);
		}
	}
	
	for(int len = 3; len <= n; len++){
		int l, r;
		for(l = 1; l <= n; l++){
			if(l+len>n)break;
			r = l+len;
			dp[l][r] = max(dp[l+1][r], dp[l][r-1]);
			dp[l][r] = max(dp[l][r], a[l]+a[r]+ get(l+1, (r+l)>>1));
		}
	}
	cin >> q;
	for(int i = 0; i < q; i++){
		int l, r;
		cin >> l >> r;
		cout << dp[l][r] << '\n';
	}
	
	
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct

Subtask #2
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 256 ms 127752 KB Output is correct
12 Correct 245 ms 127824 KB Output is correct
13 Correct 241 ms 127864 KB Output is correct
14 Correct 240 ms 127928 KB Output is correct
15 Correct 258 ms 127828 KB Output is correct
16 Correct 240 ms 127312 KB Output is correct
17 Correct 289 ms 127056 KB Output is correct
18 Correct 239 ms 127116 KB Output is correct
19 Correct 263 ms 127824 KB Output is correct

Subtask #3
0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 77 ms 83284 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
0 / 54.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 256 ms 127752 KB Output is correct
12 Correct 245 ms 127824 KB Output is correct
13 Correct 241 ms 127864 KB Output is correct
14 Correct 240 ms 127928 KB Output is correct
15 Correct 258 ms 127828 KB Output is correct
16 Correct 240 ms 127312 KB Output is correct
17 Correct 289 ms 127056 KB Output is correct
18 Correct 239 ms 127116 KB Output is correct
19 Correct 263 ms 127824 KB Output is correct
20 Runtime error 77 ms 83284 KB Execution killed with signal 11
21 Halted 0 ms 0 KB -