#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<n;i++)
#define rng(i,c,n) for(int i=c;i<n;i++)
#define per(i,n) for(int i=n-1;i>=0;i--)
#define fi first
#define se second
#define pb push_back
#define sz(a) (int)a.size()
#define vec(...) vector<__VA_ARGS__>
#define _3uHasSr ios::sync_with_stdio(0),cin.tie(0)
typedef long long ll;
using pii=pair<int,int>;
using vi=vector<int>;
void print(){cout<<'\n';}
template<class h,class...t>
void print(const h&v,const t&...u){cout<<v<<' ',print(u...);}
// e
using T=pair<pii,int>;
signed main(){
_3uHasSr;
int n,k;
cin>>n>>k;
vec(T) a(n);
rep(i,n){
cin>>a[i].fi.fi>>a[i].fi.se;
a[i].se=i;
}
assert(n<=3000);
vec(pii) _a;
rep(i,n){
_a.pb(a[i].fi);
}
sort(a.begin(), a.end(),[&](const T&l,const T&r){
return l.fi.se<r.fi.se;
});
vec(pii) stk;
vi pns;
rep(_i,n){
pii _p=_a[_i];
vec(pii) _stk=stk;
stk.pb(_p);
sort(stk.begin(), stk.end(),[&](pii l,pii r){
return l.se<r.se;
});
bool pok=1;
// check if i already intersect
{
int _lst=-1;
for(auto p:stk){
if(p.fi<_lst){
pok=0;
break;
}
_lst=p.se;
}
}
if(!pok){
stk=_stk;
continue;
}
int _lst=-1;
int j=0,cnt=0;
rep(i,n){
pii p=a[i].fi;
// if(_i==1){
// print(p.fi,p.se,j);
// }
if(p.fi>=_lst and (j==sz(stk) or p.se<=stk[j].fi)){
_lst=p.se;
cnt+=1;
}else if(j<sz(stk) and p==stk[j]){
_lst=stk[j].se;
j+=1;
cnt+=1;
}
}
// return 0;
// print(_i,cnt);
// if(_i==1){
// return 0;
// }
// //
stk=_stk;
if(cnt>=k){
pns.pb(_i);
stk.pb(_p);
}
}
while(sz(pns)>k){
pns.pop_back();
}
if(sz(pns)<k){
print(-1);
return 0;
}
rep(i,k){
print(pns[i]+1);
}
//
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Runtime error |
19 ms |
2784 KB |
Execution killed with signal 6 |
5 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
0 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
212 KB |
Output is correct |
21 |
Correct |
0 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
212 KB |
Output is correct |
23 |
Correct |
0 ms |
212 KB |
Output is correct |
24 |
Correct |
0 ms |
212 KB |
Output is correct |
25 |
Correct |
0 ms |
212 KB |
Output is correct |
26 |
Correct |
0 ms |
212 KB |
Output is correct |
27 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
0 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
212 KB |
Output is correct |
21 |
Correct |
0 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
212 KB |
Output is correct |
23 |
Correct |
0 ms |
212 KB |
Output is correct |
24 |
Correct |
0 ms |
212 KB |
Output is correct |
25 |
Correct |
0 ms |
212 KB |
Output is correct |
26 |
Correct |
0 ms |
212 KB |
Output is correct |
27 |
Correct |
0 ms |
212 KB |
Output is correct |
28 |
Correct |
4 ms |
340 KB |
Output is correct |
29 |
Correct |
3 ms |
340 KB |
Output is correct |
30 |
Correct |
3 ms |
340 KB |
Output is correct |
31 |
Correct |
2 ms |
340 KB |
Output is correct |
32 |
Correct |
1 ms |
340 KB |
Output is correct |
33 |
Correct |
19 ms |
340 KB |
Output is correct |
34 |
Correct |
23 ms |
420 KB |
Output is correct |
35 |
Correct |
269 ms |
460 KB |
Output is correct |
36 |
Correct |
238 ms |
600 KB |
Output is correct |
37 |
Correct |
212 ms |
576 KB |
Output is correct |
38 |
Correct |
19 ms |
416 KB |
Output is correct |
39 |
Correct |
212 ms |
440 KB |
Output is correct |
40 |
Correct |
215 ms |
568 KB |
Output is correct |
41 |
Correct |
218 ms |
500 KB |
Output is correct |
42 |
Correct |
25 ms |
340 KB |
Output is correct |
43 |
Correct |
94 ms |
428 KB |
Output is correct |
44 |
Correct |
89 ms |
428 KB |
Output is correct |
45 |
Correct |
79 ms |
428 KB |
Output is correct |
46 |
Correct |
18 ms |
340 KB |
Output is correct |
47 |
Correct |
13 ms |
468 KB |
Output is correct |
48 |
Correct |
11 ms |
340 KB |
Output is correct |
49 |
Correct |
9 ms |
340 KB |
Output is correct |
50 |
Correct |
14 ms |
416 KB |
Output is correct |
51 |
Correct |
4 ms |
340 KB |
Output is correct |
52 |
Correct |
3 ms |
340 KB |
Output is correct |
53 |
Correct |
2 ms |
340 KB |
Output is correct |
54 |
Correct |
12 ms |
420 KB |
Output is correct |
55 |
Correct |
67 ms |
472 KB |
Output is correct |
56 |
Correct |
69 ms |
516 KB |
Output is correct |
57 |
Correct |
67 ms |
484 KB |
Output is correct |
58 |
Correct |
70 ms |
488 KB |
Output is correct |
59 |
Correct |
68 ms |
460 KB |
Output is correct |
60 |
Correct |
66 ms |
460 KB |
Output is correct |
61 |
Correct |
84 ms |
456 KB |
Output is correct |
62 |
Correct |
65 ms |
432 KB |
Output is correct |
63 |
Correct |
70 ms |
488 KB |
Output is correct |
64 |
Correct |
11 ms |
340 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Runtime error |
19 ms |
2784 KB |
Execution killed with signal 6 |
5 |
Halted |
0 ms |
0 KB |
- |