oj.uz

Submission #854940

# Submission time Handle Problem Language Result Execution time Memory
854940 2023-09-29T12:24:07 Z vjudge1 Triple Jump (JOI19_jumps) C++17
0 / 100
 18 ms 21500 KB 
#include<bits/stdc++.h>
using namespace std; 
#define int long long
#define ll long long
#define pii pair<int,int>
#define F first
#define S second
#define endl '\n'
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) a.begin(),a.end()
const int mod = 1e9 + 7;
const int N = 200005;
const ll inf = 1e18;
int mx[3][N];
int suf[N];
int a[N];
int ans[3][N];
int dp[3][N];
int32_t main(){
	ios_base::sync_with_stdio(0);cin.tie(0);
	int n;
	cin >> n;
	for (int i=1;i<=n;i++){
		cin >> a[i];
	}
	mx[1][1]=a[1];
	for (int i=1;i<2;i++){
		for (int j=i+1;j<=n;j++){
			mx[i][j] = max(mx[i][j-1], mx[i][j]);
		}
	}
	for (int i=1;i<2;i++){
		dp[i][i+1] = a[i]+a[i+1];
	}
	for (int i=1;i<2;i++){
		for (int j=i+2;j<=n;j++){
			dp[i][j] = max(dp[i][j-1], a[j]+mx[i][j-1]);
		}
	}
	memset(mx, 0, sizeof(mx));
	for (int l=1;l<2;l++){
		for (int r=l+1;r<=n;r++){
			int c = r + (r-l);
			if (c>n) break;
			suf[c] = max(dp[l][r], suf[c]);
		}
		for (int i=1;i<=n;i++){
			suf[i] = max(suf[i], suf[i-1]);
		}
		for (int r=l+2;r<=n;r++){
			ans[l][r] = max(ans[l][r-1], suf[r]+a[r]);
		}
		memset(suf, 0, sizeof(suf));
	}
	
	int q;
	cin >> q;
	while (q--){
		int l, r;
		cin >> l >> r;
		cout << ans[l][r] << endl;
	}
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 10588 KB Output is correct
2 Runtime error 11 ms 21500 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 10588 KB Output is correct
2 Runtime error 11 ms 21500 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #3
0 / 27.0

# Verdict Execution time Memory Grader output
1 Incorrect 18 ms 15704 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 54.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 10588 KB Output is correct
2 Runtime error 11 ms 21500 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -