Submission #372369

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
372369	2021-02-27T21:39:52 Z	crackersamdjam	Fire (JOI20_ho_t5)	C++17	14 / 100	1000 ms	56228 KB

ho_t5

#include <bits/stdc++.h>
#define all(x) (x).begin(), (x).end()

using namespace std;
using ll = long long;
const int MM = 2e5+5, NN = 400, SZ = 500, LOG = 18;

struct query{
	int t, l, r, id;
	bool operator<(const query &o) const{
		return t < o.t;
	}
} q[MM];

int n, qs;
ll a[MM], ans[MM], sp[LOG][MM];

ll qu(int l, int r){
	int k = __lg(r-l+1);
	return max(sp[k][l], sp[k][r-(1<<k)+1]);
}

stack<pair<int, ll>> st;
vector<pair<int, ll>> slope[NN];
ll curslope[NN], cursum[NN];
//at time i, slope changes by x
//changes sum by something

int ls[MM], rs[MM];
//rs how far will cover
//ls how far until covered

int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	
	memset(ls, -0x3f, sizeof ls);
	cin>>n>>qs;

	for(int i = 1; i <= n; i++){
		cin>>a[i];
		sp[0][i] = a[i];
		while(size(st) and st.top().second <= a[i]){
			auto [j, v] = st.top();
			st.pop();
			rs[j] = i;
		}

		if(size(st)){
			auto [j, v] = st.top();
			ls[i] = j;
		}

		st.emplace(i, a[i]);
	}

	while(size(st)){
		auto [j, v] = st.top();
		st.pop();
		rs[j] = n+1;
	}

	for(int i = 1; i <= n; i++){
		//this one overwrites
		int id = i/SZ;
		int rid = rs[i]/SZ;

		slope[id].emplace_back(i-i, a[i]);
		slope[rid].emplace_back(rs[i]-i, -a[i]);
		for(int j = id; j <= rid; j++){
			if(j != id)
				slope[j].emplace_back(j*SZ-i, a[i]);
			
			if(j != rid)
				slope[j].emplace_back(j*SZ+SZ-i, -a[i]);
		}

		//when another starts to cover a[i]
		//and when it ends covering a[i]
		// i-ls[i] to rs[i]-ls[i]

		slope[id].emplace_back(i-ls[i], -a[i]);
		slope[rid].emplace_back(rs[i]-ls[i], a[i]);
		for(int j = id; j <= rid; j++){
			if(j != id)
				slope[j].emplace_back(j*SZ-ls[i], -a[i]);
			
			if(j != rid)
				slope[j].emplace_back(j*SZ+SZ-ls[i], a[i]);
		}
	}

	for(int k = 1; k <= __lg(n); k++){	
		for(int i = 1; i+(1<<k)-1 <= n; i++){
			sp[k][i] = max(sp[k-1][i], sp[k-1][i+(1<<(k-1))]);
		}
	}

	for(int i = 0; i <= n/SZ; i++){
		sort(all(slope[i]), greater<pair<int, ll>>());
	}
	
	for(int i = 0; i < qs; i++){
		cin>>q[i].t>>q[i].l>>q[i].r;
		q[i].id = i;
	}
	sort(q, q+qs);
	int t = -1;
	for(int tt = 0; tt < qs; tt++){
		auto [nt, l, r, qi] = q[tt];

		for(int j = t+1; j <= nt; j++){
			for(int i = 0; i <= n/SZ; i++){
				while(size(slope[i]) and slope[i].back().first <= j){
					curslope[i] += slope[i].back().second;
					slope[i].pop_back();
				}
				cursum[i] += curslope[i];
			}
		}
		t = nt;

		r++;
		int li = ((l+SZ-1)/SZ), ri = ((r)/SZ);

		if(li >= ri){
			for(int i = l; i < r; i++)
				ans[qi] += qu(max(1, i-t), i);
		}
		else{
			for(int i = l; i < li*SZ; i++)
				ans[qi] += qu(max(1, i-t), i);

			for(int i = ri*SZ; i < r; i++)
				ans[qi] += qu(max(1, i-t), i);

			for(int i = li; i < ri; i++)
				ans[qi] += cursum[i];
		}
	}

	for(int i = 0; i < qs; i++)
		cout<<ans[i]<<'\n';
}

Subtask #1
1.0 / 1.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	1152 KB	Output is correct
2	Correct	1 ms	1280 KB	Output is correct
3	Correct	1 ms	1260 KB	Output is correct
4	Correct	1 ms	1260 KB	Output is correct
5	Correct	1 ms	1260 KB	Output is correct
6	Correct	1 ms	1280 KB	Output is correct
7	Correct	1 ms	1260 KB	Output is correct
8	Correct	1 ms	1280 KB	Output is correct
9	Correct	1 ms	1260 KB	Output is correct
10	Correct	2 ms	1260 KB	Output is correct
11	Correct	1 ms	1260 KB	Output is correct
12	Correct	1 ms	1260 KB	Output is correct
13	Correct	1 ms	1280 KB	Output is correct
14	Correct	1 ms	1260 KB	Output is correct
15	Correct	1 ms	1260 KB	Output is correct
16	Correct	2 ms	1260 KB	Output is correct
17	Correct	1 ms	1260 KB	Output is correct
18	Correct	2 ms	1260 KB	Output is correct
19	Correct	2 ms	1260 KB	Output is correct
20	Correct	1 ms	1260 KB	Output is correct
21	Correct	1 ms	1260 KB	Output is correct
22	Correct	1 ms	1268 KB	Output is correct
23	Correct	1 ms	1260 KB	Output is correct
24	Correct	1 ms	1260 KB	Output is correct
25	Correct	1 ms	1260 KB	Output is correct
26	Correct	1 ms	1260 KB	Output is correct
27	Correct	1 ms	1260 KB	Output is correct
28	Correct	1 ms	1260 KB	Output is correct
29	Correct	1 ms	1260 KB	Output is correct
30	Correct	1 ms	1260 KB	Output is correct
31	Correct	1 ms	1260 KB	Output is correct
32	Correct	1 ms	1260 KB	Output is correct

Subtask #2
6.0 / 6.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	1152 KB	Output is correct
2	Correct	862 ms	49644 KB	Output is correct
3	Correct	877 ms	49164 KB	Output is correct
4	Correct	785 ms	55244 KB	Output is correct
5	Correct	875 ms	56072 KB	Output is correct
6	Correct	711 ms	55404 KB	Output is correct
7	Correct	893 ms	55480 KB	Output is correct
8	Correct	812 ms	56228 KB	Output is correct
9	Correct	748 ms	56152 KB	Output is correct
10	Correct	748 ms	54948 KB	Output is correct
11	Correct	877 ms	56164 KB	Output is correct
12	Correct	813 ms	54892 KB	Output is correct
13	Correct	682 ms	55704 KB	Output is correct
14	Correct	720 ms	56072 KB	Output is correct
15	Correct	816 ms	55844 KB	Output is correct
16	Correct	716 ms	55560 KB	Output is correct

Subtask #3
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	1152 KB	Output is correct
2	Correct	557 ms	49004 KB	Output is correct
3	Correct	524 ms	47980 KB	Output is correct
4	Correct	631 ms	50028 KB	Output is correct
5	Correct	456 ms	48620 KB	Output is correct
6	Correct	573 ms	49132 KB	Output is correct
7	Correct	446 ms	49392 KB	Output is correct
8	Correct	436 ms	48796 KB	Output is correct
9	Correct	529 ms	48328 KB	Output is correct
10	Correct	612 ms	47980 KB	Output is correct
11	Correct	738 ms	50068 KB	Output is correct
12	Correct	445 ms	49776 KB	Output is correct
13	Correct	745 ms	49848 KB	Output is correct
14	Correct	552 ms	48628 KB	Output is correct
15	Correct	502 ms	49992 KB	Output is correct
16	Correct	773 ms	49620 KB	Output is correct

Subtask #4
0 / 6.0

#	Verdict	Execution time	Memory	Grader output
1	Execution timed out	1087 ms	46696 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Subtask #5
0 / 80.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	1152 KB	Output is correct
2	Correct	1 ms	1280 KB	Output is correct
3	Correct	1 ms	1260 KB	Output is correct
4	Correct	1 ms	1260 KB	Output is correct
5	Correct	1 ms	1260 KB	Output is correct
6	Correct	1 ms	1280 KB	Output is correct
7	Correct	1 ms	1260 KB	Output is correct
8	Correct	1 ms	1280 KB	Output is correct
9	Correct	1 ms	1260 KB	Output is correct
10	Correct	2 ms	1260 KB	Output is correct
11	Correct	1 ms	1260 KB	Output is correct
12	Correct	1 ms	1260 KB	Output is correct
13	Correct	1 ms	1280 KB	Output is correct
14	Correct	1 ms	1260 KB	Output is correct
15	Correct	1 ms	1260 KB	Output is correct
16	Correct	2 ms	1260 KB	Output is correct
17	Correct	1 ms	1260 KB	Output is correct
18	Correct	2 ms	1260 KB	Output is correct
19	Correct	2 ms	1260 KB	Output is correct
20	Correct	1 ms	1260 KB	Output is correct
21	Correct	1 ms	1260 KB	Output is correct
22	Correct	1 ms	1268 KB	Output is correct
23	Correct	1 ms	1260 KB	Output is correct
24	Correct	1 ms	1260 KB	Output is correct
25	Correct	1 ms	1260 KB	Output is correct
26	Correct	1 ms	1260 KB	Output is correct
27	Correct	1 ms	1260 KB	Output is correct
28	Correct	1 ms	1260 KB	Output is correct
29	Correct	1 ms	1260 KB	Output is correct
30	Correct	1 ms	1260 KB	Output is correct
31	Correct	1 ms	1260 KB	Output is correct
32	Correct	1 ms	1260 KB	Output is correct
33	Correct	862 ms	49644 KB	Output is correct
34	Correct	877 ms	49164 KB	Output is correct
35	Correct	785 ms	55244 KB	Output is correct
36	Correct	875 ms	56072 KB	Output is correct
37	Correct	711 ms	55404 KB	Output is correct
38	Correct	893 ms	55480 KB	Output is correct
39	Correct	812 ms	56228 KB	Output is correct
40	Correct	748 ms	56152 KB	Output is correct
41	Correct	748 ms	54948 KB	Output is correct
42	Correct	877 ms	56164 KB	Output is correct
43	Correct	813 ms	54892 KB	Output is correct
44	Correct	682 ms	55704 KB	Output is correct
45	Correct	720 ms	56072 KB	Output is correct
46	Correct	816 ms	55844 KB	Output is correct
47	Correct	716 ms	55560 KB	Output is correct
48	Correct	557 ms	49004 KB	Output is correct
49	Correct	524 ms	47980 KB	Output is correct
50	Correct	631 ms	50028 KB	Output is correct
51	Correct	456 ms	48620 KB	Output is correct
52	Correct	573 ms	49132 KB	Output is correct
53	Correct	446 ms	49392 KB	Output is correct
54	Correct	436 ms	48796 KB	Output is correct
55	Correct	529 ms	48328 KB	Output is correct
56	Correct	612 ms	47980 KB	Output is correct
57	Correct	738 ms	50068 KB	Output is correct
58	Correct	445 ms	49776 KB	Output is correct
59	Correct	745 ms	49848 KB	Output is correct
60	Correct	552 ms	48628 KB	Output is correct
61	Correct	502 ms	49992 KB	Output is correct
62	Correct	773 ms	49620 KB	Output is correct
63	Execution timed out	1087 ms	46696 KB	Time limit exceeded
64	Halted	0 ms	0 KB	-

Submission #372369

Compilation message

Subtask #1 1.0 / 1.0

Subtask #2 6.0 / 6.0

Subtask #3 7.0 / 7.0

Subtask #4 0 / 6.0

Subtask #5 0 / 80.0

Subtask #1
1.0 / 1.0

Subtask #2
6.0 / 6.0

Subtask #3
7.0 / 7.0

Subtask #4
0 / 6.0

Subtask #5
0 / 80.0