#include<bits/stdc++.h>
#define ll long long
#define pll pair<ll, ll>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define ld long double
using namespace std;
const ll maxn=100005, inf=1e9;
ll l[maxn], r[maxn], sp[20][maxn*2];
int main()
{
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
ll n, k; cin >> n >> k;
vector <ll> num;
for (ll i=1; i<=n; i++)
{
cin >> l[i] >> r[i];
num.pb(l[i]); num.pb(r[i]);
}
sort(num.begin(), num.end());
num.resize(unique(num.begin(), num.end())-num.begin());
ll s=num.size();
for (ll i=1; i<=s+1; i++) sp[0][i]=s+1;
for (ll i=1; i<=n; i++)
{
l[i]=lower_bound(num.begin(), num.end(), l[i])-num.begin()+1;
r[i]=lower_bound(num.begin(), num.end(), r[i])-num.begin()+1;
sp[0][l[i]]=r[i];
}
for (ll i=s; i>=1; i--)
sp[0][i]=min(sp[0][i], sp[0][i+1]);
for (ll i=1; i<20; i++)
for (ll j=1; j<=s+1; j++)
sp[i][j]=sp[i-1][sp[i-1][j]];
auto query=[&](ll l, ll r)
{
ll ans=0, crr=l;
for (ll i=19; i>=0; i--)
if (sp[i][crr]<=r)
ans+=1<<i, crr=sp[i][crr];
return ans;
};
ll cnt=query(1, s);
if (cnt<k) {cout << -1; exit(0);}
vector <ll> ans;
set <pll> S; S.insert(mp(1, s));
for (ll i=1; i<=n; i++)
{
auto it=S.lower_bound(mp(l[i], s+1));
if (it==S.begin()) continue; it--;
ll L, R; tie(L, R)=*it;
if (R<r[i]) continue;
ll lose=query(L, R)-(query(L, l[i])+query(r[i], R)+1);
if (cnt-lose<k) continue;
S.erase(it), cnt-=lose;
if (L<l[i]) S.insert(mp(L, l[i]));
if (r[i]<R) S.insert(mp(r[i], R));
ans.pb(i); if (ans.size()==k) break;
}
for (ll i:ans) cout << i << "\n";
}
Compilation message
event2.cpp: In function 'int main()':
event2.cpp:55:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
55 | if (it==S.begin()) continue; it--;
| ^~
event2.cpp:55:38: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
55 | if (it==S.begin()) continue; it--;
| ^~
event2.cpp:63:34: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
63 | ans.pb(i); if (ans.size()==k) break;
| ~~~~~~~~~~^~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
31064 KB |
Output is correct |
2 |
Correct |
6 ms |
31068 KB |
Output is correct |
3 |
Correct |
5 ms |
31068 KB |
Output is correct |
4 |
Correct |
106 ms |
43732 KB |
Output is correct |
5 |
Correct |
104 ms |
43340 KB |
Output is correct |
6 |
Correct |
94 ms |
43204 KB |
Output is correct |
7 |
Correct |
95 ms |
42340 KB |
Output is correct |
8 |
Correct |
102 ms |
43716 KB |
Output is correct |
9 |
Correct |
125 ms |
43464 KB |
Output is correct |
10 |
Correct |
97 ms |
43204 KB |
Output is correct |
11 |
Correct |
91 ms |
42440 KB |
Output is correct |
12 |
Correct |
82 ms |
41152 KB |
Output is correct |
13 |
Correct |
92 ms |
40896 KB |
Output is correct |
14 |
Correct |
77 ms |
40780 KB |
Output is correct |
15 |
Correct |
72 ms |
40252 KB |
Output is correct |
16 |
Correct |
56 ms |
37676 KB |
Output is correct |
17 |
Correct |
54 ms |
37608 KB |
Output is correct |
18 |
Correct |
50 ms |
37596 KB |
Output is correct |
19 |
Correct |
50 ms |
36900 KB |
Output is correct |
20 |
Correct |
47 ms |
36804 KB |
Output is correct |
21 |
Correct |
45 ms |
36820 KB |
Output is correct |
22 |
Correct |
48 ms |
36944 KB |
Output is correct |
23 |
Correct |
50 ms |
36832 KB |
Output is correct |
24 |
Correct |
46 ms |
36764 KB |
Output is correct |
25 |
Correct |
54 ms |
37084 KB |
Output is correct |
26 |
Correct |
48 ms |
36916 KB |
Output is correct |
27 |
Correct |
52 ms |
37064 KB |
Output is correct |
28 |
Correct |
38 ms |
36864 KB |
Output is correct |
29 |
Correct |
42 ms |
36804 KB |
Output is correct |
30 |
Correct |
42 ms |
36800 KB |
Output is correct |
31 |
Correct |
44 ms |
36808 KB |
Output is correct |
32 |
Correct |
45 ms |
36804 KB |
Output is correct |
33 |
Correct |
49 ms |
36804 KB |
Output is correct |
34 |
Correct |
64 ms |
39368 KB |
Output is correct |
35 |
Correct |
59 ms |
38424 KB |
Output is correct |
36 |
Correct |
47 ms |
37680 KB |
Output is correct |
37 |
Correct |
95 ms |
40524 KB |
Output is correct |
38 |
Correct |
73 ms |
40444 KB |
Output is correct |
39 |
Correct |
71 ms |
40180 KB |
Output is correct |
40 |
Correct |
70 ms |
40136 KB |
Output is correct |
41 |
Correct |
71 ms |
39920 KB |
Output is correct |
42 |
Correct |
45 ms |
36808 KB |
Output is correct |
43 |
Correct |
85 ms |
40404 KB |
Output is correct |
44 |
Correct |
83 ms |
40376 KB |
Output is correct |
45 |
Correct |
78 ms |
40184 KB |
Output is correct |
46 |
Correct |
80 ms |
39972 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
31068 KB |
Output is correct |
2 |
Correct |
5 ms |
31248 KB |
Output is correct |
3 |
Correct |
5 ms |
31068 KB |
Output is correct |
4 |
Correct |
5 ms |
31252 KB |
Output is correct |
5 |
Correct |
5 ms |
31068 KB |
Output is correct |
6 |
Correct |
5 ms |
31068 KB |
Output is correct |
7 |
Correct |
5 ms |
31064 KB |
Output is correct |
8 |
Correct |
5 ms |
31068 KB |
Output is correct |
9 |
Correct |
5 ms |
31232 KB |
Output is correct |
10 |
Correct |
5 ms |
31064 KB |
Output is correct |
11 |
Correct |
5 ms |
31268 KB |
Output is correct |
12 |
Correct |
5 ms |
31068 KB |
Output is correct |
13 |
Correct |
5 ms |
31068 KB |
Output is correct |
14 |
Correct |
6 ms |
31064 KB |
Output is correct |
15 |
Correct |
5 ms |
31068 KB |
Output is correct |
16 |
Correct |
5 ms |
31068 KB |
Output is correct |
17 |
Correct |
5 ms |
31324 KB |
Output is correct |
18 |
Correct |
5 ms |
31068 KB |
Output is correct |
19 |
Correct |
6 ms |
31064 KB |
Output is correct |
20 |
Correct |
5 ms |
31068 KB |
Output is correct |
21 |
Correct |
6 ms |
31520 KB |
Output is correct |
22 |
Correct |
5 ms |
31068 KB |
Output is correct |
23 |
Correct |
5 ms |
31184 KB |
Output is correct |
24 |
Correct |
5 ms |
31068 KB |
Output is correct |
25 |
Correct |
5 ms |
31064 KB |
Output is correct |
26 |
Correct |
5 ms |
31068 KB |
Output is correct |
27 |
Correct |
5 ms |
31192 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
31068 KB |
Output is correct |
2 |
Correct |
5 ms |
31248 KB |
Output is correct |
3 |
Correct |
5 ms |
31068 KB |
Output is correct |
4 |
Correct |
5 ms |
31252 KB |
Output is correct |
5 |
Correct |
5 ms |
31068 KB |
Output is correct |
6 |
Correct |
5 ms |
31068 KB |
Output is correct |
7 |
Correct |
5 ms |
31064 KB |
Output is correct |
8 |
Correct |
5 ms |
31068 KB |
Output is correct |
9 |
Correct |
5 ms |
31232 KB |
Output is correct |
10 |
Correct |
5 ms |
31064 KB |
Output is correct |
11 |
Correct |
5 ms |
31268 KB |
Output is correct |
12 |
Correct |
5 ms |
31068 KB |
Output is correct |
13 |
Correct |
5 ms |
31068 KB |
Output is correct |
14 |
Correct |
6 ms |
31064 KB |
Output is correct |
15 |
Correct |
5 ms |
31068 KB |
Output is correct |
16 |
Correct |
5 ms |
31068 KB |
Output is correct |
17 |
Correct |
5 ms |
31324 KB |
Output is correct |
18 |
Correct |
5 ms |
31068 KB |
Output is correct |
19 |
Correct |
6 ms |
31064 KB |
Output is correct |
20 |
Correct |
5 ms |
31068 KB |
Output is correct |
21 |
Correct |
6 ms |
31520 KB |
Output is correct |
22 |
Correct |
5 ms |
31068 KB |
Output is correct |
23 |
Correct |
5 ms |
31184 KB |
Output is correct |
24 |
Correct |
5 ms |
31068 KB |
Output is correct |
25 |
Correct |
5 ms |
31064 KB |
Output is correct |
26 |
Correct |
5 ms |
31068 KB |
Output is correct |
27 |
Correct |
5 ms |
31192 KB |
Output is correct |
28 |
Correct |
8 ms |
31452 KB |
Output is correct |
29 |
Correct |
7 ms |
31320 KB |
Output is correct |
30 |
Correct |
7 ms |
31324 KB |
Output is correct |
31 |
Correct |
7 ms |
31308 KB |
Output is correct |
32 |
Correct |
7 ms |
31324 KB |
Output is correct |
33 |
Correct |
7 ms |
31320 KB |
Output is correct |
34 |
Correct |
7 ms |
31324 KB |
Output is correct |
35 |
Correct |
8 ms |
31580 KB |
Output is correct |
36 |
Correct |
8 ms |
31572 KB |
Output is correct |
37 |
Correct |
7 ms |
31576 KB |
Output is correct |
38 |
Correct |
7 ms |
31456 KB |
Output is correct |
39 |
Correct |
8 ms |
31580 KB |
Output is correct |
40 |
Correct |
8 ms |
31580 KB |
Output is correct |
41 |
Correct |
9 ms |
31456 KB |
Output is correct |
42 |
Correct |
6 ms |
31324 KB |
Output is correct |
43 |
Correct |
7 ms |
31324 KB |
Output is correct |
44 |
Correct |
7 ms |
31324 KB |
Output is correct |
45 |
Correct |
7 ms |
31324 KB |
Output is correct |
46 |
Correct |
7 ms |
31324 KB |
Output is correct |
47 |
Correct |
6 ms |
31324 KB |
Output is correct |
48 |
Correct |
7 ms |
31520 KB |
Output is correct |
49 |
Correct |
7 ms |
31324 KB |
Output is correct |
50 |
Correct |
7 ms |
31400 KB |
Output is correct |
51 |
Correct |
8 ms |
31400 KB |
Output is correct |
52 |
Correct |
7 ms |
31324 KB |
Output is correct |
53 |
Correct |
7 ms |
31304 KB |
Output is correct |
54 |
Correct |
6 ms |
31324 KB |
Output is correct |
55 |
Correct |
6 ms |
31324 KB |
Output is correct |
56 |
Correct |
6 ms |
31324 KB |
Output is correct |
57 |
Correct |
7 ms |
31324 KB |
Output is correct |
58 |
Correct |
7 ms |
31324 KB |
Output is correct |
59 |
Correct |
7 ms |
31476 KB |
Output is correct |
60 |
Correct |
8 ms |
31320 KB |
Output is correct |
61 |
Correct |
7 ms |
31324 KB |
Output is correct |
62 |
Correct |
7 ms |
31324 KB |
Output is correct |
63 |
Correct |
6 ms |
31324 KB |
Output is correct |
64 |
Correct |
6 ms |
31444 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
31064 KB |
Output is correct |
2 |
Correct |
6 ms |
31068 KB |
Output is correct |
3 |
Correct |
5 ms |
31068 KB |
Output is correct |
4 |
Correct |
106 ms |
43732 KB |
Output is correct |
5 |
Correct |
104 ms |
43340 KB |
Output is correct |
6 |
Correct |
94 ms |
43204 KB |
Output is correct |
7 |
Correct |
95 ms |
42340 KB |
Output is correct |
8 |
Correct |
102 ms |
43716 KB |
Output is correct |
9 |
Correct |
125 ms |
43464 KB |
Output is correct |
10 |
Correct |
97 ms |
43204 KB |
Output is correct |
11 |
Correct |
91 ms |
42440 KB |
Output is correct |
12 |
Correct |
82 ms |
41152 KB |
Output is correct |
13 |
Correct |
92 ms |
40896 KB |
Output is correct |
14 |
Correct |
77 ms |
40780 KB |
Output is correct |
15 |
Correct |
72 ms |
40252 KB |
Output is correct |
16 |
Correct |
56 ms |
37676 KB |
Output is correct |
17 |
Correct |
54 ms |
37608 KB |
Output is correct |
18 |
Correct |
50 ms |
37596 KB |
Output is correct |
19 |
Correct |
50 ms |
36900 KB |
Output is correct |
20 |
Correct |
47 ms |
36804 KB |
Output is correct |
21 |
Correct |
45 ms |
36820 KB |
Output is correct |
22 |
Correct |
48 ms |
36944 KB |
Output is correct |
23 |
Correct |
50 ms |
36832 KB |
Output is correct |
24 |
Correct |
46 ms |
36764 KB |
Output is correct |
25 |
Correct |
54 ms |
37084 KB |
Output is correct |
26 |
Correct |
48 ms |
36916 KB |
Output is correct |
27 |
Correct |
52 ms |
37064 KB |
Output is correct |
28 |
Correct |
38 ms |
36864 KB |
Output is correct |
29 |
Correct |
42 ms |
36804 KB |
Output is correct |
30 |
Correct |
42 ms |
36800 KB |
Output is correct |
31 |
Correct |
44 ms |
36808 KB |
Output is correct |
32 |
Correct |
45 ms |
36804 KB |
Output is correct |
33 |
Correct |
49 ms |
36804 KB |
Output is correct |
34 |
Correct |
64 ms |
39368 KB |
Output is correct |
35 |
Correct |
59 ms |
38424 KB |
Output is correct |
36 |
Correct |
47 ms |
37680 KB |
Output is correct |
37 |
Correct |
95 ms |
40524 KB |
Output is correct |
38 |
Correct |
73 ms |
40444 KB |
Output is correct |
39 |
Correct |
71 ms |
40180 KB |
Output is correct |
40 |
Correct |
70 ms |
40136 KB |
Output is correct |
41 |
Correct |
71 ms |
39920 KB |
Output is correct |
42 |
Correct |
45 ms |
36808 KB |
Output is correct |
43 |
Correct |
85 ms |
40404 KB |
Output is correct |
44 |
Correct |
83 ms |
40376 KB |
Output is correct |
45 |
Correct |
78 ms |
40184 KB |
Output is correct |
46 |
Correct |
80 ms |
39972 KB |
Output is correct |
47 |
Correct |
5 ms |
31068 KB |
Output is correct |
48 |
Correct |
5 ms |
31248 KB |
Output is correct |
49 |
Correct |
5 ms |
31068 KB |
Output is correct |
50 |
Correct |
5 ms |
31252 KB |
Output is correct |
51 |
Correct |
5 ms |
31068 KB |
Output is correct |
52 |
Correct |
5 ms |
31068 KB |
Output is correct |
53 |
Correct |
5 ms |
31064 KB |
Output is correct |
54 |
Correct |
5 ms |
31068 KB |
Output is correct |
55 |
Correct |
5 ms |
31232 KB |
Output is correct |
56 |
Correct |
5 ms |
31064 KB |
Output is correct |
57 |
Correct |
5 ms |
31268 KB |
Output is correct |
58 |
Correct |
5 ms |
31068 KB |
Output is correct |
59 |
Correct |
5 ms |
31068 KB |
Output is correct |
60 |
Correct |
6 ms |
31064 KB |
Output is correct |
61 |
Correct |
5 ms |
31068 KB |
Output is correct |
62 |
Correct |
5 ms |
31068 KB |
Output is correct |
63 |
Correct |
5 ms |
31324 KB |
Output is correct |
64 |
Correct |
5 ms |
31068 KB |
Output is correct |
65 |
Correct |
6 ms |
31064 KB |
Output is correct |
66 |
Correct |
5 ms |
31068 KB |
Output is correct |
67 |
Correct |
6 ms |
31520 KB |
Output is correct |
68 |
Correct |
5 ms |
31068 KB |
Output is correct |
69 |
Correct |
5 ms |
31184 KB |
Output is correct |
70 |
Correct |
5 ms |
31068 KB |
Output is correct |
71 |
Correct |
5 ms |
31064 KB |
Output is correct |
72 |
Correct |
5 ms |
31068 KB |
Output is correct |
73 |
Correct |
5 ms |
31192 KB |
Output is correct |
74 |
Correct |
8 ms |
31452 KB |
Output is correct |
75 |
Correct |
7 ms |
31320 KB |
Output is correct |
76 |
Correct |
7 ms |
31324 KB |
Output is correct |
77 |
Correct |
7 ms |
31308 KB |
Output is correct |
78 |
Correct |
7 ms |
31324 KB |
Output is correct |
79 |
Correct |
7 ms |
31320 KB |
Output is correct |
80 |
Correct |
7 ms |
31324 KB |
Output is correct |
81 |
Correct |
8 ms |
31580 KB |
Output is correct |
82 |
Correct |
8 ms |
31572 KB |
Output is correct |
83 |
Correct |
7 ms |
31576 KB |
Output is correct |
84 |
Correct |
7 ms |
31456 KB |
Output is correct |
85 |
Correct |
8 ms |
31580 KB |
Output is correct |
86 |
Correct |
8 ms |
31580 KB |
Output is correct |
87 |
Correct |
9 ms |
31456 KB |
Output is correct |
88 |
Correct |
6 ms |
31324 KB |
Output is correct |
89 |
Correct |
7 ms |
31324 KB |
Output is correct |
90 |
Correct |
7 ms |
31324 KB |
Output is correct |
91 |
Correct |
7 ms |
31324 KB |
Output is correct |
92 |
Correct |
7 ms |
31324 KB |
Output is correct |
93 |
Correct |
6 ms |
31324 KB |
Output is correct |
94 |
Correct |
7 ms |
31520 KB |
Output is correct |
95 |
Correct |
7 ms |
31324 KB |
Output is correct |
96 |
Correct |
7 ms |
31400 KB |
Output is correct |
97 |
Correct |
8 ms |
31400 KB |
Output is correct |
98 |
Correct |
7 ms |
31324 KB |
Output is correct |
99 |
Correct |
7 ms |
31304 KB |
Output is correct |
100 |
Correct |
6 ms |
31324 KB |
Output is correct |
101 |
Correct |
6 ms |
31324 KB |
Output is correct |
102 |
Correct |
6 ms |
31324 KB |
Output is correct |
103 |
Correct |
7 ms |
31324 KB |
Output is correct |
104 |
Correct |
7 ms |
31324 KB |
Output is correct |
105 |
Correct |
7 ms |
31476 KB |
Output is correct |
106 |
Correct |
8 ms |
31320 KB |
Output is correct |
107 |
Correct |
7 ms |
31324 KB |
Output is correct |
108 |
Correct |
7 ms |
31324 KB |
Output is correct |
109 |
Correct |
6 ms |
31324 KB |
Output is correct |
110 |
Correct |
6 ms |
31444 KB |
Output is correct |
111 |
Correct |
75 ms |
36868 KB |
Output is correct |
112 |
Correct |
68 ms |
36804 KB |
Output is correct |
113 |
Correct |
69 ms |
36812 KB |
Output is correct |
114 |
Correct |
67 ms |
36784 KB |
Output is correct |
115 |
Correct |
66 ms |
36880 KB |
Output is correct |
116 |
Correct |
62 ms |
36808 KB |
Output is correct |
117 |
Correct |
63 ms |
36800 KB |
Output is correct |
118 |
Correct |
208 ms |
44092 KB |
Output is correct |
119 |
Correct |
177 ms |
43204 KB |
Output is correct |
120 |
Correct |
122 ms |
40392 KB |
Output is correct |
121 |
Correct |
58 ms |
36804 KB |
Output is correct |
122 |
Correct |
143 ms |
41160 KB |
Output is correct |
123 |
Correct |
140 ms |
40556 KB |
Output is correct |
124 |
Correct |
128 ms |
40644 KB |
Output is correct |
125 |
Correct |
66 ms |
37252 KB |
Output is correct |
126 |
Incorrect |
90 ms |
37576 KB |
Output isn't correct |
127 |
Halted |
0 ms |
0 KB |
- |