oj.uz

답안 #943593

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
943593 2024-03-11T16:04:46 Z PlayVoltz 3단 점프 (JOI19_jumps) C++17
100 / 100
 1282 ms 152304 KB 
#include <iostream>
#include <map>
#include <vector>
#include <climits>
#include <stack>
#include <string>
#include <queue>
#include <algorithm>
#include <set>
#include <unordered_set>
#include <unordered_map>
#include <cmath>
#include <cctype>
#include <bitset>
#include <iomanip>
#include <cstring>
#include <numeric>
using namespace std;

#define int long long
#define pb push_back
#define mp make_pair
#define pii pair<int, int>
#define fi first
#define se second
#define ll long long
ll const INF = 1e9;

vector<int> vect;

struct node{
 
    int s, e, m; 
    ll aval, summ, pv, lazy;
    node *l, *r; 
	node (int S, int E)
	{ 
       s = S, e = E, m = (s+e)/2;
       summ = pv = -INF;
       if (s==e) {aval = vect[s]; return;}
       l = new node(s, m); 
	   r = new node(m+1, e);
	   aval = max(l->aval, r->aval);
	   lazy = -INF;
 
    }
 
	void propogate()
	{
	   if (lazy==-INF) return;
	   if (s!=e)
	   {
		   l->lazy = max(l->lazy, lazy);
		   r->lazy = max(r->lazy, lazy);
           l->pv= max(l->pv, lazy);
           l->summ = max(l->summ, l->aval + lazy);
           r->pv= max(r->pv, lazy);
           r->summ = max(r->summ, r->aval + lazy);
	   }
	   lazy = -INF;
    }
    
	void update(int S, int E, ll V)
	{ 
		if (S>E)return;
	   propogate();
       if(s==S && e==E) 
       {
         lazy = max(lazy, V);
         pv= max(pv, V);
         summ = max(summ, aval + pv);
       }
       else{ 
           propogate();
           if(E <= m) l->update(S, E, V); 
           else if (m < S) r->update(S, E, V); 
           else l->update(S, m, V),r->update(m+1, E, V);
           l->propogate(),r->propogate();
		   summ = max(l->summ, r->summ);
          
       }
    }
	ll query(int S, int E)
	{
	   propogate(); 
       if(s == S && e == E) return summ; 
       propogate();
       if(E <= m) return l->query(S, E); 
       else if(S >= m+1) return r->query(S, E); 
       else return max(l->query(S, m), r->query(m+1, E)); 
   }
 
} *st;

int32_t main(){
	int n, q, a, b;
	cin>>n;
	vect.resize(n+1);
	vector<vector<pii> > queries(n+1);
	for (int i=1; i<=n; ++i)cin>>vect[i];
	cin>>q;
	vector<int> ans(q);
	vector<vector<int> > next(n+1);
	st = new node(1, n);
	for (int i=0; i<q; ++i){
		cin>>a>>b;
		queries[a].pb(mp(b, i));
	}
	stack<int> s;
	for (int i=1; i<=n; ++i){
		while (!s.empty()&&vect[s.top()]<=vect[i])next[s.top()].pb(i), s.pop();
		s.push(i);
	}
	while (!s.empty())s.pop();
	for (int i=n; i>=1; --i){
		while (!s.empty()&&vect[s.top()]<=vect[i])next[i].pb(s.top()), s.pop();
		s.push(i);
	}
	for (int i=n; i>=1; --i){
		for (auto c:next[i])st->update(2*c-i, n, vect[i]+vect[c]);
		for (auto c:queries[i])ans[c.se]=st->query(i, c.fi);
	}
	for (auto a:ans)cout<<a<<"\n";
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct

Subtask #2
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 296 ms 23652 KB Output is correct
12 Correct 289 ms 23632 KB Output is correct
13 Correct 306 ms 23956 KB Output is correct
14 Correct 296 ms 23728 KB Output is correct
15 Correct 324 ms 23700 KB Output is correct
16 Correct 305 ms 23168 KB Output is correct
17 Correct 338 ms 23124 KB Output is correct
18 Correct 308 ms 22908 KB Output is correct
19 Correct 306 ms 23736 KB Output is correct

Subtask #3
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 179 ms 51248 KB Output is correct
2 Correct 129 ms 50596 KB Output is correct
3 Correct 127 ms 48992 KB Output is correct
4 Correct 182 ms 51420 KB Output is correct
5 Correct 174 ms 51224 KB Output is correct
6 Correct 175 ms 51428 KB Output is correct
7 Correct 164 ms 51408 KB Output is correct
8 Correct 158 ms 51284 KB Output is correct
9 Correct 185 ms 51540 KB Output is correct

Subtask #4
54.0 / 54.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 296 ms 23652 KB Output is correct
12 Correct 289 ms 23632 KB Output is correct
13 Correct 306 ms 23956 KB Output is correct
14 Correct 296 ms 23728 KB Output is correct
15 Correct 324 ms 23700 KB Output is correct
16 Correct 305 ms 23168 KB Output is correct
17 Correct 338 ms 23124 KB Output is correct
18 Correct 308 ms 22908 KB Output is correct
19 Correct 306 ms 23736 KB Output is correct
20 Correct 179 ms 51248 KB Output is correct
21 Correct 129 ms 50596 KB Output is correct
22 Correct 127 ms 48992 KB Output is correct
23 Correct 182 ms 51420 KB Output is correct
24 Correct 174 ms 51224 KB Output is correct
25 Correct 175 ms 51428 KB Output is correct
26 Correct 164 ms 51408 KB Output is correct
27 Correct 158 ms 51284 KB Output is correct
28 Correct 185 ms 51540 KB Output is correct
29 Correct 1282 ms 149844 KB Output is correct
30 Correct 1116 ms 147644 KB Output is correct
31 Correct 1169 ms 143680 KB Output is correct
32 Correct 1231 ms 149732 KB Output is correct
33 Correct 1280 ms 149736 KB Output is correct
34 Correct 1280 ms 149296 KB Output is correct
35 Correct 1222 ms 148980 KB Output is correct
36 Correct 1269 ms 149076 KB Output is correct
37 Correct 1245 ms 149732 KB Output is correct
38 Correct 849 ms 152304 KB Output is correct
39 Correct 804 ms 152304 KB Output is correct
40 Correct 794 ms 150612 KB Output is correct
41 Correct 792 ms 150308 KB Output is correct
42 Correct 763 ms 150352 KB Output is correct
43 Correct 785 ms 151408 KB Output is correct
44 Correct 876 ms 152028 KB Output is correct
45 Correct 863 ms 152148 KB Output is correct
46 Correct 835 ms 150512 KB Output is correct
47 Correct 891 ms 150488 KB Output is correct
48 Correct 821 ms 150696 KB Output is correct
49 Correct 852 ms 151524 KB Output is correct
50 Correct 969 ms 151380 KB Output is correct
51 Correct 1032 ms 151376 KB Output is correct
52 Correct 990 ms 150608 KB Output is correct
53 Correct 935 ms 150608 KB Output is correct
54 Correct 929 ms 150504 KB Output is correct
55 Correct 943 ms 151440 KB Output is correct