oj.uz

Submission #1097682

# Submission time Handle Problem Language Result Execution time Memory
1097682 2024-10-08T02:35:39 Z Alihan_8 Snowball (JOI21_ho_t2) C++17
33 / 100
 2500 ms 9044 KB 
#include <bits/stdc++.h>

using namespace std;

#define all(x) x.begin(), x.end()
#define ar array

using i64 = long long;

const i64 inf = 1e18;

signed main(){
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);
	
	int n, q; cin >> n >> q;
	
	vector <i64> X(n + 2);
	
	for ( int i = 1; i <= n; i++ ){
		cin >> X[i];
	}
	
	X[0] = -inf, X[n + 1] = inf;
	
	vector <i64> Q(q);
	
	for ( auto &x: Q ) cin >> x;
	
	vector <ar<i64,2>> f(q);
	
	i64 cnt = 0;
	
	for ( int i = 0; i < q; i++ ){
		if ( i > 0 ) f[i] = f[i - 1];
		
		cnt += Q[i];
		
		f[i][0] = min(f[i][0], cnt);
		f[i][1] = max(f[i][1], cnt);
	}
	
	sort(all(f), [&](auto &u, auto &v){
		return u[1] - u[0] < v[1] - v[0];
	});
	
	vector <i64> A(n + 1), B(n + 1);
	
	for ( int i = 1; i <= n; i++ ){
		A[i] = X[i] - X[i - 1];
		B[i] = X[i + 1] - X[i];
	}
	
	vector <i64> L(n + 1), R(n + 1);
	
	{ // L
		vector <int> p(n);
		iota(all(p), 1);
		
		sort(all(p), [&](int &u, int &v){
			return A[u] < A[v];
		});
		
		vector <i64> pf(q + 1, inf), sf(q + 2, inf);
		
		for ( int i = 0; i < q; i++ ) pf[i + 1] = min(pf[i], f[i][0]);
		for ( int i = q; i > 0; i-- ) sf[i] = min(sf[i + 1], f[i - 1][1]);
		
		int j = 0;
		
		for ( auto &i: p ){
			L[i] = A[i];
			
			for ( int j = 0; j < q; j++ ){
				L[i] = min(L[i], max(f[j][1], f[j][0] + A[i]));
			}
			
			while ( j < q && f[j][1] <= A[i] + f[j][0] ) j++;
			
			for ( int k = 0; k < q; k++ ){
				if ( k < j ) L[i] = min(L[i], f[k][0] + A[i]);
				else L[i] = min(L[i], f[k][1]);
			}
			
			//~ L[i] = min({L[i], pf[j] + A[i], sf[j + 1]});
		}
	}
	{ // R
		vector <int> p(n);
		iota(all(p), 1);
		
		sort(all(p), [&](int &u, int &v){
			return B[u] < B[v];
		});
		
		vector <i64> pf(q + 1, -inf), sf(q + 2, -inf);
		
		for ( int i = 0; i < q; i++ ) pf[i + 1] = max(pf[i], f[i][1]);
		for ( int i = q; i > 0; i-- ) sf[i] = max(sf[i + 1], f[i - 1][0]);
		
		int j = 0;
		
		for ( auto &i: p ){
			for ( int j = 0; j < q; j++ ){
				R[i] = max(R[i], min(f[j][0] + B[i], f[j][1]));
			}
			
			continue;
			
			while ( j < q && f[j][1] <= B[i] + f[j][0] ) j++;
			
			R[i] = max({R[i], pf[j], sf[j + 1] + B[i]});
		}
	}
	
	for ( int i = 1; i <= n; i++ ){
		cout << R[i] - L[i] + A[i] << endl;
	}
	
	cout << '\n';
}

Subtask #1
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 4 ms 372 KB Output is correct
4 Correct 15 ms 600 KB Output is correct
5 Correct 15 ms 600 KB Output is correct
6 Correct 15 ms 628 KB Output is correct
7 Correct 15 ms 604 KB Output is correct
8 Correct 15 ms 604 KB Output is correct
9 Correct 15 ms 604 KB Output is correct
10 Correct 14 ms 616 KB Output is correct
11 Correct 14 ms 620 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 21 ms 624 KB Output is correct
16 Correct 15 ms 604 KB Output is correct
17 Correct 18 ms 856 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 14 ms 604 KB Output is correct

Subtask #2
0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 4 ms 372 KB Output is correct
4 Correct 15 ms 600 KB Output is correct
5 Correct 15 ms 600 KB Output is correct
6 Correct 15 ms 628 KB Output is correct
7 Correct 15 ms 604 KB Output is correct
8 Correct 15 ms 604 KB Output is correct
9 Correct 15 ms 604 KB Output is correct
10 Correct 14 ms 616 KB Output is correct
11 Correct 14 ms 620 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 21 ms 624 KB Output is correct
16 Correct 15 ms 604 KB Output is correct
17 Correct 18 ms 856 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 14 ms 604 KB Output is correct
20 Correct 36 ms 8168 KB Output is correct
21 Correct 48 ms 8280 KB Output is correct
22 Correct 264 ms 8288 KB Output is correct
23 Correct 2437 ms 8328 KB Output is correct
24 Execution timed out 2554 ms 9044 KB Time limit exceeded
25 Halted 0 ms 0 KB -