Submission #1019898

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1019898	2024-07-11T10:27:06 Z	beaconmc	Fire (BOI24_fire)	C++14	40 / 100	240 ms	96560 KB

Main

#include <bits/stdc++.h>


typedef long long ll;
#define FOR(i,x,y) for(ll i=x; i<y; i++)
#define FORNEG(i,x,y) for(ll i=x; i>y; i--)

using namespace std;

vector<vector<ll>> normal;
map<ll, ll> maxis;
map<ll,ll> par;

ll anc[100005][30];


ll ancc(ll x, ll k){
	if (x==1000000000) return 1000000000;
	if (anc[x][k] != -1) return anc[x][k];
	if (k==0){
		if (par[x] == x) return anc[x][k] = 1000000000;
		return anc[x][k] = par[x];
	}
	return anc[x][k] = ancc(ancc(x, k-1), k-1);
}

int main(){
	FOR(i,0,100005) FOR(j,0,30) anc[i][j] = -1;
	ll n,m;
	cin >> n >> m;

	FOR(i,0,n){
		ll a,b;
		cin >> a >> b;
		if (a<b) normal.push_back({a,b});
		else normal.push_back({a,m+b});
	}

	sort(normal.begin(), normal.end());
	set<ll> things;

	for (auto&i : normal){
		things.insert(i[0]);
		things.insert(i[1]);
	}
	ll cur = 0;
	ll maxi = -1;
	ll maxting = -1;


	for (auto&i : things){
		while (cur < normal.size()){
			if (normal[cur][0] <= i){
				if (normal[cur][1] > maxi){
					maxi = normal[cur][1];
					maxting = cur;
				}
			}else break;
			cur++;
		}
		maxis[i] = maxting;
	}

	FOR(i,0,normal.size()){
		par[i] = maxis[normal[i][1]];
	}
	ll realans = 1000000000;

	FOR(i,0,normal.size()){
		ll orig = normal[i][0];
		
		ll ans = 0;

		ll lo = 0;
		ll hi = 10000000;


		while (lo < hi){

			ll mid = (lo+hi)/2;
			ll idk = i;
			FOR(j,0,30){
				if (mid&(1<<j)){
					idk = ancc(idk, j);
				}
			}
			if (idk == 1000000000 || normal[idk][1] - orig >= m){
				hi = mid;
			}else{
				lo = mid+1;
			}
		}
		ll shit = i;
		FOR(j,0,30){
			if (lo&(1<<j)){
				shit = ancc(shit, j);
			}
		}


		if (shit != 1000000000 && normal[shit][1] - orig >= m) realans = min(realans, lo+1);
		



		


	}
	if (realans == 1000000000) cout << -1 << endl;
	else cout << realans << endl;








}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:52:14: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::vector<long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   52 |   while (cur < normal.size()){
      |          ~~~~^~~~~~~~~~~~~~~
Main.cpp:5:33: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::vector<long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    5 | #define FOR(i,x,y) for(ll i=x; i<y; i++)
......
   64 |  FOR(i,0,normal.size()){
      |      ~~~~~~~~~~~~~~~~~           
Main.cpp:64:2: note: in expansion of macro 'FOR'
   64 |  FOR(i,0,normal.size()){
      |  ^~~
Main.cpp:5:33: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::vector<long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    5 | #define FOR(i,x,y) for(ll i=x; i<y; i++)
......
   69 |  FOR(i,0,normal.size()){
      |      ~~~~~~~~~~~~~~~~~           
Main.cpp:69:2: note: in expansion of macro 'FOR'
   69 |  FOR(i,0,normal.size()){
      |  ^~~
Main.cpp:72:6: warning: unused variable 'ans' [-Wunused-variable]
   72 |   ll ans = 0;
      |      ^~~

Subtask #1
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	23900 KB	Output is correct
2	Correct	5 ms	23896 KB	Output is correct
3	Correct	6 ms	24116 KB	Output is correct
4	Correct	4 ms	23900 KB	Output is correct
5	Correct	4 ms	23900 KB	Output is correct
6	Correct	4 ms	23900 KB	Output is correct
7	Correct	4 ms	23792 KB	Output is correct
8	Correct	3 ms	23900 KB	Output is correct
9	Correct	4 ms	23900 KB	Output is correct
10	Correct	4 ms	23900 KB	Output is correct
11	Correct	4 ms	23900 KB	Output is correct
12	Correct	4 ms	23900 KB	Output is correct
13	Correct	3 ms	23896 KB	Output is correct
14	Correct	4 ms	23900 KB	Output is correct
15	Correct	3 ms	23900 KB	Output is correct
16	Correct	3 ms	23900 KB	Output is correct
17	Correct	3 ms	23900 KB	Output is correct
18	Correct	3 ms	23900 KB	Output is correct
19	Correct	3 ms	23896 KB	Output is correct
20	Correct	3 ms	23900 KB	Output is correct
21	Correct	6 ms	23916 KB	Output is correct
22	Correct	3 ms	23900 KB	Output is correct
23	Correct	4 ms	23900 KB	Output is correct

Subtask #2
17.0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	23900 KB	Output is correct
2	Correct	5 ms	23896 KB	Output is correct
3	Correct	6 ms	24116 KB	Output is correct
4	Correct	4 ms	23900 KB	Output is correct
5	Correct	4 ms	23900 KB	Output is correct
6	Correct	4 ms	23900 KB	Output is correct
7	Correct	4 ms	23792 KB	Output is correct
8	Correct	3 ms	23900 KB	Output is correct
9	Correct	4 ms	23900 KB	Output is correct
10	Correct	4 ms	23900 KB	Output is correct
11	Correct	4 ms	23900 KB	Output is correct
12	Correct	4 ms	23900 KB	Output is correct
13	Correct	3 ms	23896 KB	Output is correct
14	Correct	4 ms	23900 KB	Output is correct
15	Correct	3 ms	23900 KB	Output is correct
16	Correct	3 ms	23900 KB	Output is correct
17	Correct	3 ms	23900 KB	Output is correct
18	Correct	3 ms	23900 KB	Output is correct
19	Correct	3 ms	23896 KB	Output is correct
20	Correct	3 ms	23900 KB	Output is correct
21	Correct	6 ms	23916 KB	Output is correct
22	Correct	3 ms	23900 KB	Output is correct
23	Correct	4 ms	23900 KB	Output is correct
24	Correct	3 ms	23896 KB	Output is correct
25	Correct	5 ms	23900 KB	Output is correct
26	Correct	4 ms	23940 KB	Output is correct
27	Correct	4 ms	23896 KB	Output is correct
28	Correct	5 ms	23896 KB	Output is correct
29	Correct	5 ms	23900 KB	Output is correct
30	Correct	4 ms	23900 KB	Output is correct
31	Correct	5 ms	23896 KB	Output is correct
32	Correct	4 ms	23900 KB	Output is correct
33	Correct	5 ms	23900 KB	Output is correct
34	Correct	5 ms	23900 KB	Output is correct
35	Correct	5 ms	23900 KB	Output is correct
36	Correct	4 ms	23900 KB	Output is correct
37	Correct	4 ms	23900 KB	Output is correct
38	Correct	5 ms	23936 KB	Output is correct

Subtask #3
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	23900 KB	Output is correct
2	Correct	5 ms	23896 KB	Output is correct
3	Correct	6 ms	24116 KB	Output is correct
4	Correct	4 ms	23900 KB	Output is correct
5	Correct	4 ms	23900 KB	Output is correct
6	Correct	4 ms	23900 KB	Output is correct
7	Correct	4 ms	23792 KB	Output is correct
8	Correct	3 ms	23900 KB	Output is correct
9	Correct	4 ms	23900 KB	Output is correct
10	Correct	4 ms	23900 KB	Output is correct
11	Correct	4 ms	23900 KB	Output is correct
12	Correct	4 ms	23900 KB	Output is correct
13	Correct	3 ms	23896 KB	Output is correct
14	Correct	4 ms	23900 KB	Output is correct
15	Correct	3 ms	23900 KB	Output is correct
16	Correct	3 ms	23900 KB	Output is correct
17	Correct	3 ms	23900 KB	Output is correct
18	Correct	3 ms	23900 KB	Output is correct
19	Correct	3 ms	23896 KB	Output is correct
20	Correct	3 ms	23900 KB	Output is correct
21	Correct	6 ms	23916 KB	Output is correct
22	Correct	3 ms	23900 KB	Output is correct
23	Correct	4 ms	23900 KB	Output is correct
24	Correct	3 ms	23896 KB	Output is correct
25	Correct	5 ms	23900 KB	Output is correct
26	Correct	4 ms	23940 KB	Output is correct
27	Correct	4 ms	23896 KB	Output is correct
28	Correct	5 ms	23896 KB	Output is correct
29	Correct	5 ms	23900 KB	Output is correct
30	Correct	4 ms	23900 KB	Output is correct
31	Correct	5 ms	23896 KB	Output is correct
32	Correct	4 ms	23900 KB	Output is correct
33	Correct	5 ms	23900 KB	Output is correct
34	Correct	5 ms	23900 KB	Output is correct
35	Correct	5 ms	23900 KB	Output is correct
36	Correct	4 ms	23900 KB	Output is correct
37	Correct	4 ms	23900 KB	Output is correct
38	Correct	5 ms	23936 KB	Output is correct
39	Correct	19 ms	25692 KB	Output is correct
40	Correct	15 ms	25692 KB	Output is correct
41	Correct	15 ms	25560 KB	Output is correct
42	Correct	15 ms	24924 KB	Output is correct
43	Correct	12 ms	24924 KB	Output is correct
44	Correct	15 ms	24992 KB	Output is correct
45	Correct	15 ms	24924 KB	Output is correct
46	Correct	15 ms	25056 KB	Output is correct
47	Correct	17 ms	25692 KB	Output is correct
48	Correct	14 ms	25544 KB	Output is correct
49	Correct	13 ms	25668 KB	Output is correct
50	Correct	14 ms	24920 KB	Output is correct

Subtask #4
0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	23896 KB	Output is correct
2	Correct	3 ms	23900 KB	Output is correct
3	Correct	5 ms	23900 KB	Output is correct
4	Correct	4 ms	23900 KB	Output is correct
5	Correct	4 ms	23900 KB	Output is correct
6	Correct	4 ms	23900 KB	Output is correct
7	Correct	3 ms	23900 KB	Output is correct
8	Correct	3 ms	23900 KB	Output is correct
9	Correct	4 ms	23928 KB	Output is correct
10	Correct	6 ms	23900 KB	Output is correct
11	Correct	4 ms	23900 KB	Output is correct
12	Correct	4 ms	23900 KB	Output is correct
13	Correct	5 ms	23896 KB	Output is correct
14	Correct	5 ms	23932 KB	Output is correct
15	Correct	19 ms	25708 KB	Output is correct
16	Correct	13 ms	25028 KB	Output is correct
17	Correct	12 ms	24924 KB	Output is correct
18	Correct	15 ms	24924 KB	Output is correct
19	Correct	14 ms	25688 KB	Output is correct
20	Runtime error	240 ms	96452 KB	Execution killed with signal 11
21	Halted	0 ms	0 KB	-

Subtask #5
0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	23896 KB	Output is correct
2	Correct	3 ms	23896 KB	Output is correct
3	Correct	3 ms	23900 KB	Output is correct
4	Correct	4 ms	23900 KB	Output is correct
5	Correct	3 ms	23900 KB	Output is correct
6	Correct	4 ms	23696 KB	Output is correct
7	Correct	3 ms	23900 KB	Output is correct
8	Correct	4 ms	23924 KB	Output is correct
9	Correct	6 ms	23900 KB	Output is correct
10	Correct	3 ms	23900 KB	Output is correct
11	Correct	5 ms	23900 KB	Output is correct
12	Correct	15 ms	25704 KB	Output is correct
13	Correct	17 ms	25128 KB	Output is correct
14	Correct	12 ms	24924 KB	Output is correct
15	Runtime error	222 ms	96560 KB	Execution killed with signal 11
16	Halted	0 ms	0 KB	-

Subtask #6
0 / 26.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	23900 KB	Output is correct
2	Correct	5 ms	23896 KB	Output is correct
3	Correct	6 ms	24116 KB	Output is correct
4	Correct	4 ms	23900 KB	Output is correct
5	Correct	4 ms	23900 KB	Output is correct
6	Correct	4 ms	23900 KB	Output is correct
7	Correct	4 ms	23792 KB	Output is correct
8	Correct	3 ms	23900 KB	Output is correct
9	Correct	4 ms	23900 KB	Output is correct
10	Correct	4 ms	23900 KB	Output is correct
11	Correct	4 ms	23900 KB	Output is correct
12	Correct	4 ms	23900 KB	Output is correct
13	Correct	3 ms	23896 KB	Output is correct
14	Correct	4 ms	23900 KB	Output is correct
15	Correct	3 ms	23900 KB	Output is correct
16	Correct	3 ms	23900 KB	Output is correct
17	Correct	3 ms	23900 KB	Output is correct
18	Correct	3 ms	23900 KB	Output is correct
19	Correct	3 ms	23896 KB	Output is correct
20	Correct	3 ms	23900 KB	Output is correct
21	Correct	6 ms	23916 KB	Output is correct
22	Correct	3 ms	23900 KB	Output is correct
23	Correct	4 ms	23900 KB	Output is correct
24	Correct	3 ms	23896 KB	Output is correct
25	Correct	5 ms	23900 KB	Output is correct
26	Correct	4 ms	23940 KB	Output is correct
27	Correct	4 ms	23896 KB	Output is correct
28	Correct	5 ms	23896 KB	Output is correct
29	Correct	5 ms	23900 KB	Output is correct
30	Correct	4 ms	23900 KB	Output is correct
31	Correct	5 ms	23896 KB	Output is correct
32	Correct	4 ms	23900 KB	Output is correct
33	Correct	5 ms	23900 KB	Output is correct
34	Correct	5 ms	23900 KB	Output is correct
35	Correct	5 ms	23900 KB	Output is correct
36	Correct	4 ms	23900 KB	Output is correct
37	Correct	4 ms	23900 KB	Output is correct
38	Correct	5 ms	23936 KB	Output is correct
39	Correct	19 ms	25692 KB	Output is correct
40	Correct	15 ms	25692 KB	Output is correct
41	Correct	15 ms	25560 KB	Output is correct
42	Correct	15 ms	24924 KB	Output is correct
43	Correct	12 ms	24924 KB	Output is correct
44	Correct	15 ms	24992 KB	Output is correct
45	Correct	15 ms	24924 KB	Output is correct
46	Correct	15 ms	25056 KB	Output is correct
47	Correct	17 ms	25692 KB	Output is correct
48	Correct	14 ms	25544 KB	Output is correct
49	Correct	13 ms	25668 KB	Output is correct
50	Correct	14 ms	24920 KB	Output is correct
51	Correct	3 ms	23896 KB	Output is correct
52	Correct	3 ms	23900 KB	Output is correct
53	Correct	5 ms	23900 KB	Output is correct
54	Correct	4 ms	23900 KB	Output is correct
55	Correct	4 ms	23900 KB	Output is correct
56	Correct	4 ms	23900 KB	Output is correct
57	Correct	3 ms	23900 KB	Output is correct
58	Correct	3 ms	23900 KB	Output is correct
59	Correct	4 ms	23928 KB	Output is correct
60	Correct	6 ms	23900 KB	Output is correct
61	Correct	4 ms	23900 KB	Output is correct
62	Correct	4 ms	23900 KB	Output is correct
63	Correct	5 ms	23896 KB	Output is correct
64	Correct	5 ms	23932 KB	Output is correct
65	Correct	19 ms	25708 KB	Output is correct
66	Correct	13 ms	25028 KB	Output is correct
67	Correct	12 ms	24924 KB	Output is correct
68	Correct	15 ms	24924 KB	Output is correct
69	Correct	14 ms	25688 KB	Output is correct
70	Runtime error	240 ms	96452 KB	Execution killed with signal 11
71	Halted	0 ms	0 KB	-

Submission #1019898

Compilation message

Subtask #1 14.0 / 14.0

Subtask #2 17.0 / 17.0

Subtask #3 9.0 / 9.0

Subtask #4 0 / 13.0

Subtask #5 0 / 21.0

Subtask #6 0 / 26.0

Subtask #1
14.0 / 14.0

Subtask #2
17.0 / 17.0

Subtask #3
9.0 / 9.0

Subtask #4
0 / 13.0

Subtask #5
0 / 21.0

Subtask #6
0 / 26.0