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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#185647 | #3101. Event Hopping 2 | Pure_Furies# | 0 | 377ms | 45988kb | C++14 | 1.6kb | 2023-09-22 13:55:26 | 2024-07-04 02:07:02 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
int n,k,l[100003],r[100003],pre[17][100003],nxt[17][100003];
int calc(int i,int L,int R){
int t=i,ret=1;
for(int j=16;~j;j--)
if(L<=l[pre[j][t]])
t=pre[j][t],ret+=1<<j;
t=i;
for(int j=16;~j;j--)
if(r[nxt[j][t]]<=R)
t=nxt[j][t],ret+=1<<j;
return ret;
}
int main(){
ios::sync_with_stdio(0);
cin.tie(NULL);
cout.tie(NULL);
cin>>n>>k;
map<int,vector<int> >mp;
map<pair<int,int>,int>Mp;
for(int i=0;i<n;i++){
cin>>l[i]>>r[i];
Mp[{l[i],r[i]}]=i;
mp[l[i]].push_back(i);
mp[r[i]].push_back(i+n);
}l[n]=0;r[n]=1;
l[n+1]=1e9;
r[n+1]=l[n+1]+1;
pre[0][n]=n;
nxt[0][n+1]=n+1;
int t=n;
for(auto it:mp){
for(auto i:it.second)
if(i>=n&&l[i-n]>l[t])
t=i-n;
for(auto i:it.second)
if(i<n)
pre[0][i]=t;
}pre[0][n+1]=t;
mp.clear();
for(int i=0;i<n;i++)
mp[-r[i]].push_back(i),
mp[-l[i]].push_back(i+n);
t=n+1;
for(auto it:mp){
for(auto i:it.second)
if(i>=n&&r[i-n]<r[t])
t=i-n;
for(auto i:it.second)
if(i<n)
nxt[0][i]=t;
}nxt[0][n]=t;
set<pair<int,int> >st={{l[n],r[n]},{l[n+1],r[n+1]}};
for(int i=1;i<17;i++)
for(int j=0;j<n+2;j++)
pre[i][j]=pre[i-1][pre[i-1][j]],
nxt[i][j]=nxt[i-1][nxt[i-1][j]];
int nw=calc(nxt[0][n],r[n],l[n+1]);
if(nw<k){cout<<-1;return 0;}
int ttklwxx=k;
for(int i=0;i<n&&ttklwxx;i++){
auto it=st.lower_bound({r[i],-1});it--;
int L=(*it).second,R,ii=Mp[*it];
if(L>l[i])continue;
it++;R=(*it).first;
if(R<r[i])continue;
int tmp=nw-calc(nxt[0][ii],L,R)+calc(i,L,R);
if(tmp>=k)
nw=tmp,cout<<i+1<<'\n',ttklwxx--,st.insert({l[i],r[i]});
}
}
詳細信息
Subtask #1:
score: 0
Wrong Answer
Test #1:
score: 0
Wrong Answer
time: 3ms
memory: 16164kb
input:
1 1 1 3
output:
result:
wrong answer 1st lines differ - expected: '1', found: ''
Subtask #2:
score: 0
Wrong Answer
Test #47:
score: 0
Wrong Answer
time: 0ms
memory: 15908kb
input:
1 1 134842099 137944073
output:
result:
wrong answer 1st lines differ - expected: '1', found: ''
Subtask #3:
score: 0
Wrong Answer
Test #74:
score: 0
Wrong Answer
time: 7ms
memory: 16780kb
input:
3000 57 226083340 261990234 392684356 462929590 468018811 841719892 495096853 606046097 196983814 256423598 331199122 967656486 802593662 931108452 74501453 679054962 294344294 752837262 295708332 547261648 265421699 652708933 272959087 727136240 165667761 846917534 61770748 157663302 608516043 8492...
output:
50 85 104 139 173 189 257 273 297 347 374 411 543 600 665 686 750 850 971 977 990 1040 1069 1074 1109 1183 1226 1231 1316 1440 1508 1597 1611 1670 1676 1774 1811 1822 1885 1968 2005 2103 2153 2271 2304 2416 2562 2593 2608 2690 2798 2873 2884
result:
wrong answer 10th lines differ - expected: '327', found: '347'
Subtask #4:
score: 0
Wrong Answer
Test #111:
score: 0
Wrong Answer
time: 377ms
memory: 45988kb
input:
100000 361 136798318 785362988 255943758 535488232 175203444 266819907 766993466 893575347 67274251 589651108 662289594 883406317 830803801 849703610 729398668 798198453 202605534 677648797 66407931 925909114 174421361 601553812 522629146 701284080 136544340 295925673 299796891 499869765 736583725 8...
output:
42 102 185 660 950 3924 4471 4619 4677 5229 5430 6013 6316 6365 6575 7327 7833 9212 10114 10190 10260 10265 10321 10533 11184 11597 12001 12303 12483 12546 12771 14110 14379 14581 15421 15803 15963 16335 16475 17115 17138 17364 17536 17722 18203 18225 18557 18562 19484 19710 20935 21126 21166 21658 ...
result:
wrong answer 4th lines differ - expected: '215', found: '660'