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답안 #996869

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
996869 2024-06-11T11:06:16 Z errorgorn Fish 3 (JOI24_fish3) C++17
100 / 100
 450 ms 118964 KB 
#include <bits/stdc++.h>
using namespace std;

#define int long long
#define ii pair<int,int>
#define iii tuple<int,int,int>
#define fi first
#define se second
#define endl '\n'

#define pub push_back
#define pob pop_back
#define puf push_front
#define pof pop_front
#define lb lower_bound
#define ub upper_bound

#define rep(x,start,end) for(int x=(start)-((start)>(end));x!=(end)-((start)>(end));((start)<(end)?x++:x--))
#define all(x) (x).begin(),(x).end()
#define sz(x) (int)(x).size()

mt19937 rng(chrono::system_clock::now().time_since_epoch().count());

int n,k,q;
int arr[300005];
int brr[300005];

int pref1[300005];
int pref2[300005];

ii nxt[300005][20];

signed main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin.exceptions(ios::badbit | ios::failbit);
	
	cin>>n>>k;
	rep(x,1,n+1) cin>>arr[x];
	rep(x,1,n+1) brr[x]=arr[x-1]-arr[x];
	
	int L=1e18/k;
	rep(x,1,n+1) brr[x]+=(-brr[x]+k*L)%k;
	
	rep(x,1,n+1) pref1[x]=pref1[x-1]+brr[x];
	rep(x,1,n+1) pref2[x]=pref2[x-1]+brr[x]*x;
	
	int P=0;
	vector<ii> v={{4e18,0}};
	rep(x,1,n+1){
		P+=brr[x];
		while (!v.empty() && v.back().fi<P) v.pob();
		
		int y=v.back().se;
		nxt[x][0]={y,(pref2[x]-pref2[y+1])-(pref1[x]-pref1[y+1])*(y+1)};
		
		v.pub({P,x});
	}
	
	rep(y,1,20) rep(x,1,n+1){
		int u=nxt[x][y-1].fi;
		
		nxt[x][y]={
			nxt[u][y-1].fi,
			nxt[x][y-1].se+nxt[u][y-1].se
		};
	}
	
	cin>>q;
	while (q--){
		int l,r; cin>>l>>r;
		
		int ans=0;
		
		rep(x,20,0) if (nxt[r][x].fi>=l){
			ans+=nxt[r][x].se;
			r=nxt[r][x].fi;
		}
		
		ans+=(pref2[r]-pref2[l])-(pref1[r]-pref1[l])*(l);
		
		int v=arr[l]-(pref1[r]-pref1[l]);
		
		if (v<0) cout<<"-1"<<endl;
		else cout<<ans/k<<endl;
	}
}

Subtask #1
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4568 KB Output is correct
3 Correct 1 ms 4696 KB Output is correct
4 Correct 2 ms 6936 KB Output is correct
5 Correct 3 ms 6744 KB Output is correct
6 Correct 2 ms 6748 KB Output is correct
7 Correct 2 ms 7000 KB Output is correct
8 Correct 2 ms 6748 KB Output is correct
9 Correct 2 ms 6748 KB Output is correct
10 Correct 2 ms 6748 KB Output is correct
11 Correct 3 ms 6748 KB Output is correct
12 Correct 2 ms 7000 KB Output is correct
13 Correct 2 ms 7004 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 344 ms 112472 KB Output is correct
2 Correct 372 ms 113032 KB Output is correct
3 Correct 46 ms 10112 KB Output is correct
4 Correct 160 ms 109140 KB Output is correct
5 Correct 170 ms 109124 KB Output is correct
6 Correct 317 ms 112840 KB Output is correct
7 Correct 318 ms 111380 KB Output is correct

Subtask #3
28.0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Correct 62 ms 14160 KB Output is correct
2 Correct 217 ms 116816 KB Output is correct
3 Correct 191 ms 116652 KB Output is correct
4 Correct 192 ms 116792 KB Output is correct
5 Correct 185 ms 116816 KB Output is correct
6 Correct 212 ms 110800 KB Output is correct
7 Correct 223 ms 111060 KB Output is correct
8 Correct 231 ms 114060 KB Output is correct
9 Correct 261 ms 114132 KB Output is correct
10 Correct 414 ms 118964 KB Output is correct
11 Correct 450 ms 117292 KB Output is correct
12 Correct 331 ms 117264 KB Output is correct
13 Correct 340 ms 117080 KB Output is correct

Subtask #4
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 203 ms 93796 KB Output is correct
2 Correct 240 ms 110804 KB Output is correct
3 Correct 105 ms 34132 KB Output is correct
4 Correct 241 ms 113872 KB Output is correct
5 Correct 169 ms 105784 KB Output is correct
6 Correct 172 ms 116564 KB Output is correct
7 Correct 164 ms 94648 KB Output is correct
8 Correct 184 ms 116560 KB Output is correct
9 Correct 233 ms 109820 KB Output is correct
10 Correct 218 ms 109500 KB Output is correct
11 Correct 281 ms 113876 KB Output is correct
12 Correct 250 ms 113108 KB Output is correct
13 Correct 183 ms 116308 KB Output is correct
14 Correct 165 ms 112212 KB Output is correct
15 Correct 234 ms 116308 KB Output is correct
16 Correct 167 ms 112384 KB Output is correct

Subtask #5
36.0 / 36.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4568 KB Output is correct
3 Correct 1 ms 4696 KB Output is correct
4 Correct 2 ms 6936 KB Output is correct
5 Correct 3 ms 6744 KB Output is correct
6 Correct 2 ms 6748 KB Output is correct
7 Correct 2 ms 7000 KB Output is correct
8 Correct 2 ms 6748 KB Output is correct
9 Correct 2 ms 6748 KB Output is correct
10 Correct 2 ms 6748 KB Output is correct
11 Correct 3 ms 6748 KB Output is correct
12 Correct 2 ms 7000 KB Output is correct
13 Correct 2 ms 7004 KB Output is correct
14 Correct 344 ms 112472 KB Output is correct
15 Correct 372 ms 113032 KB Output is correct
16 Correct 46 ms 10112 KB Output is correct
17 Correct 160 ms 109140 KB Output is correct
18 Correct 170 ms 109124 KB Output is correct
19 Correct 317 ms 112840 KB Output is correct
20 Correct 318 ms 111380 KB Output is correct
21 Correct 62 ms 14160 KB Output is correct
22 Correct 217 ms 116816 KB Output is correct
23 Correct 191 ms 116652 KB Output is correct
24 Correct 192 ms 116792 KB Output is correct
25 Correct 185 ms 116816 KB Output is correct
26 Correct 212 ms 110800 KB Output is correct
27 Correct 223 ms 111060 KB Output is correct
28 Correct 231 ms 114060 KB Output is correct
29 Correct 261 ms 114132 KB Output is correct
30 Correct 414 ms 118964 KB Output is correct
31 Correct 450 ms 117292 KB Output is correct
32 Correct 331 ms 117264 KB Output is correct
33 Correct 340 ms 117080 KB Output is correct
34 Correct 203 ms 93796 KB Output is correct
35 Correct 240 ms 110804 KB Output is correct
36 Correct 105 ms 34132 KB Output is correct
37 Correct 241 ms 113872 KB Output is correct
38 Correct 169 ms 105784 KB Output is correct
39 Correct 172 ms 116564 KB Output is correct
40 Correct 164 ms 94648 KB Output is correct
41 Correct 184 ms 116560 KB Output is correct
42 Correct 233 ms 109820 KB Output is correct
43 Correct 218 ms 109500 KB Output is correct
44 Correct 281 ms 113876 KB Output is correct
45 Correct 250 ms 113108 KB Output is correct
46 Correct 183 ms 116308 KB Output is correct
47 Correct 165 ms 112212 KB Output is correct
48 Correct 234 ms 116308 KB Output is correct
49 Correct 167 ms 112384 KB Output is correct
50 Correct 187 ms 116808 KB Output is correct
51 Correct 222 ms 110804 KB Output is correct
52 Correct 227 ms 114028 KB Output is correct
53 Correct 430 ms 117504 KB Output is correct
54 Correct 309 ms 117188 KB Output is correct
55 Correct 193 ms 116548 KB Output is correct
56 Correct 162 ms 112328 KB Output is correct
57 Correct 148 ms 109136 KB Output is correct
58 Correct 159 ms 109084 KB Output is correct
59 Correct 196 ms 114496 KB Output is correct
60 Correct 165 ms 112208 KB Output is correct
61 Correct 431 ms 118452 KB Output is correct
62 Correct 423 ms 117172 KB Output is correct
63 Correct 311 ms 116936 KB Output is correct
64 Correct 199 ms 112328 KB Output is correct