답안 #1019901

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1019901	2024-07-11T10:27:51 Z	beaconmc	Fire (BOI24_fire)	C++14	40 / 100	223 ms	95728 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 < normal.size() && 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:101:12: 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]
  101 |   if (shit < normal.size() && normal[shit][1] - orig >= m) realans = min(realans, lo+1);
      |       ~~~~~^~~~~~~~~~~~~~~
Main.cpp:72:6: warning: unused variable 'ans' [-Wunused-variable]
   72 |   ll ans = 0;
      |      ^~~

Subtask #1
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	23900 KB	Output is correct
2	Correct	4 ms	23900 KB	Output is correct
3	Correct	3 ms	23900 KB	Output is correct
4	Correct	4 ms	23900 KB	Output is correct
5	Correct	5 ms	23736 KB	Output is correct
6	Correct	4 ms	23900 KB	Output is correct
7	Correct	5 ms	23844 KB	Output is correct
8	Correct	4 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	3 ms	23900 KB	Output is correct
12	Correct	4 ms	23900 KB	Output is correct
13	Correct	3 ms	23900 KB	Output is correct
14	Correct	3 ms	23896 KB	Output is correct
15	Correct	4 ms	23900 KB	Output is correct
16	Correct	4 ms	23900 KB	Output is correct
17	Correct	4 ms	23792 KB	Output is correct
18	Correct	3 ms	23900 KB	Output is correct
19	Correct	4 ms	23900 KB	Output is correct
20	Correct	3 ms	23900 KB	Output is correct
21	Correct	3 ms	23900 KB	Output is correct
22	Correct	3 ms	23900 KB	Output is correct
23	Correct	5 ms	23900 KB	Output is correct

Subtask #2
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	23900 KB	Output is correct
2	Correct	4 ms	23900 KB	Output is correct
3	Correct	3 ms	23900 KB	Output is correct
4	Correct	4 ms	23900 KB	Output is correct
5	Correct	5 ms	23736 KB	Output is correct
6	Correct	4 ms	23900 KB	Output is correct
7	Correct	5 ms	23844 KB	Output is correct
8	Correct	4 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	3 ms	23900 KB	Output is correct
12	Correct	4 ms	23900 KB	Output is correct
13	Correct	3 ms	23900 KB	Output is correct
14	Correct	3 ms	23896 KB	Output is correct
15	Correct	4 ms	23900 KB	Output is correct
16	Correct	4 ms	23900 KB	Output is correct
17	Correct	4 ms	23792 KB	Output is correct
18	Correct	3 ms	23900 KB	Output is correct
19	Correct	4 ms	23900 KB	Output is correct
20	Correct	3 ms	23900 KB	Output is correct
21	Correct	3 ms	23900 KB	Output is correct
22	Correct	3 ms	23900 KB	Output is correct
23	Correct	5 ms	23900 KB	Output is correct
24	Correct	4 ms	23900 KB	Output is correct
25	Correct	4 ms	23900 KB	Output is correct
26	Correct	5 ms	23900 KB	Output is correct
27	Correct	4 ms	23900 KB	Output is correct
28	Correct	4 ms	23900 KB	Output is correct
29	Correct	4 ms	23924 KB	Output is correct
30	Correct	5 ms	23900 KB	Output is correct
31	Correct	4 ms	23900 KB	Output is correct
32	Correct	4 ms	23976 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	5 ms	23900 KB	Output is correct
37	Correct	4 ms	23896 KB	Output is correct
38	Correct	5 ms	23936 KB	Output is correct

Subtask #3
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	23900 KB	Output is correct
2	Correct	4 ms	23900 KB	Output is correct
3	Correct	3 ms	23900 KB	Output is correct
4	Correct	4 ms	23900 KB	Output is correct
5	Correct	5 ms	23736 KB	Output is correct
6	Correct	4 ms	23900 KB	Output is correct
7	Correct	5 ms	23844 KB	Output is correct
8	Correct	4 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	3 ms	23900 KB	Output is correct
12	Correct	4 ms	23900 KB	Output is correct
13	Correct	3 ms	23900 KB	Output is correct
14	Correct	3 ms	23896 KB	Output is correct
15	Correct	4 ms	23900 KB	Output is correct
16	Correct	4 ms	23900 KB	Output is correct
17	Correct	4 ms	23792 KB	Output is correct
18	Correct	3 ms	23900 KB	Output is correct
19	Correct	4 ms	23900 KB	Output is correct
20	Correct	3 ms	23900 KB	Output is correct
21	Correct	3 ms	23900 KB	Output is correct
22	Correct	3 ms	23900 KB	Output is correct
23	Correct	5 ms	23900 KB	Output is correct
24	Correct	4 ms	23900 KB	Output is correct
25	Correct	4 ms	23900 KB	Output is correct
26	Correct	5 ms	23900 KB	Output is correct
27	Correct	4 ms	23900 KB	Output is correct
28	Correct	4 ms	23900 KB	Output is correct
29	Correct	4 ms	23924 KB	Output is correct
30	Correct	5 ms	23900 KB	Output is correct
31	Correct	4 ms	23900 KB	Output is correct
32	Correct	4 ms	23976 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	5 ms	23900 KB	Output is correct
37	Correct	4 ms	23896 KB	Output is correct
38	Correct	5 ms	23936 KB	Output is correct
39	Correct	17 ms	25616 KB	Output is correct
40	Correct	15 ms	25616 KB	Output is correct
41	Correct	16 ms	25432 KB	Output is correct
42	Correct	13 ms	24924 KB	Output is correct
43	Correct	12 ms	24924 KB	Output is correct
44	Correct	14 ms	25072 KB	Output is correct
45	Correct	17 ms	24920 KB	Output is correct
46	Correct	14 ms	24924 KB	Output is correct
47	Correct	16 ms	25372 KB	Output is correct
48	Correct	13 ms	25436 KB	Output is correct
49	Correct	14 ms	25544 KB	Output is correct
50	Correct	13 ms	24924 KB	Output is correct

Subtask #4
0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	23900 KB	Output is correct
2	Correct	4 ms	23900 KB	Output is correct
3	Correct	4 ms	23896 KB	Output is correct
4	Correct	4 ms	23896 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	23900 KB	Output is correct
8	Correct	4 ms	23900 KB	Output is correct
9	Correct	4 ms	23900 KB	Output is correct
10	Correct	5 ms	23896 KB	Output is correct
11	Correct	4 ms	23992 KB	Output is correct
12	Correct	4 ms	23900 KB	Output is correct
13	Correct	3 ms	23900 KB	Output is correct
14	Correct	4 ms	23896 KB	Output is correct
15	Correct	15 ms	25436 KB	Output is correct
16	Correct	14 ms	25024 KB	Output is correct
17	Correct	12 ms	24924 KB	Output is correct
18	Correct	15 ms	25072 KB	Output is correct
19	Correct	14 ms	25436 KB	Output is correct
20	Runtime error	223 ms	95564 KB	Execution killed with signal 11
21	Halted	0 ms	0 KB	-

Subtask #5
0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	23900 KB	Output is correct
2	Correct	4 ms	23884 KB	Output is correct
3	Correct	3 ms	23900 KB	Output is correct
4	Correct	3 ms	23900 KB	Output is correct
5	Correct	3 ms	23900 KB	Output is correct
6	Correct	3 ms	23900 KB	Output is correct
7	Correct	4 ms	23900 KB	Output is correct
8	Correct	5 ms	23900 KB	Output is correct
9	Correct	6 ms	24152 KB	Output is correct
10	Correct	5 ms	23900 KB	Output is correct
11	Correct	4 ms	23900 KB	Output is correct
12	Correct	14 ms	25600 KB	Output is correct
13	Correct	18 ms	25068 KB	Output is correct
14	Correct	12 ms	25072 KB	Output is correct
15	Runtime error	214 ms	95728 KB	Execution killed with signal 11
16	Halted	0 ms	0 KB	-

Subtask #6
0 / 26.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	23900 KB	Output is correct
2	Correct	4 ms	23900 KB	Output is correct
3	Correct	3 ms	23900 KB	Output is correct
4	Correct	4 ms	23900 KB	Output is correct
5	Correct	5 ms	23736 KB	Output is correct
6	Correct	4 ms	23900 KB	Output is correct
7	Correct	5 ms	23844 KB	Output is correct
8	Correct	4 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	3 ms	23900 KB	Output is correct
12	Correct	4 ms	23900 KB	Output is correct
13	Correct	3 ms	23900 KB	Output is correct
14	Correct	3 ms	23896 KB	Output is correct
15	Correct	4 ms	23900 KB	Output is correct
16	Correct	4 ms	23900 KB	Output is correct
17	Correct	4 ms	23792 KB	Output is correct
18	Correct	3 ms	23900 KB	Output is correct
19	Correct	4 ms	23900 KB	Output is correct
20	Correct	3 ms	23900 KB	Output is correct
21	Correct	3 ms	23900 KB	Output is correct
22	Correct	3 ms	23900 KB	Output is correct
23	Correct	5 ms	23900 KB	Output is correct
24	Correct	4 ms	23900 KB	Output is correct
25	Correct	4 ms	23900 KB	Output is correct
26	Correct	5 ms	23900 KB	Output is correct
27	Correct	4 ms	23900 KB	Output is correct
28	Correct	4 ms	23900 KB	Output is correct
29	Correct	4 ms	23924 KB	Output is correct
30	Correct	5 ms	23900 KB	Output is correct
31	Correct	4 ms	23900 KB	Output is correct
32	Correct	4 ms	23976 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	5 ms	23900 KB	Output is correct
37	Correct	4 ms	23896 KB	Output is correct
38	Correct	5 ms	23936 KB	Output is correct
39	Correct	17 ms	25616 KB	Output is correct
40	Correct	15 ms	25616 KB	Output is correct
41	Correct	16 ms	25432 KB	Output is correct
42	Correct	13 ms	24924 KB	Output is correct
43	Correct	12 ms	24924 KB	Output is correct
44	Correct	14 ms	25072 KB	Output is correct
45	Correct	17 ms	24920 KB	Output is correct
46	Correct	14 ms	24924 KB	Output is correct
47	Correct	16 ms	25372 KB	Output is correct
48	Correct	13 ms	25436 KB	Output is correct
49	Correct	14 ms	25544 KB	Output is correct
50	Correct	13 ms	24924 KB	Output is correct
51	Correct	3 ms	23900 KB	Output is correct
52	Correct	4 ms	23900 KB	Output is correct
53	Correct	4 ms	23896 KB	Output is correct
54	Correct	4 ms	23896 KB	Output is correct
55	Correct	4 ms	23900 KB	Output is correct
56	Correct	4 ms	23900 KB	Output is correct
57	Correct	4 ms	23900 KB	Output is correct
58	Correct	4 ms	23900 KB	Output is correct
59	Correct	4 ms	23900 KB	Output is correct
60	Correct	5 ms	23896 KB	Output is correct
61	Correct	4 ms	23992 KB	Output is correct
62	Correct	4 ms	23900 KB	Output is correct
63	Correct	3 ms	23900 KB	Output is correct
64	Correct	4 ms	23896 KB	Output is correct
65	Correct	15 ms	25436 KB	Output is correct
66	Correct	14 ms	25024 KB	Output is correct
67	Correct	12 ms	24924 KB	Output is correct
68	Correct	15 ms	25072 KB	Output is correct
69	Correct	14 ms	25436 KB	Output is correct
70	Runtime error	223 ms	95564 KB	Execution killed with signal 11
71	Halted	0 ms	0 KB	-

답안 #1019901

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