QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#56122 | #3042. Hilbert's Hotel | tricyzhkx | WA | 3ms | 3840kb | C++14 | 1.8kb | 2022-10-17 11:26:55 | 2022-10-17 11:26:57 |
Judging History
answer
# include <bits/stdc++.h>
using namespace std;
const int mod=998244353;
typedef long long ll;
int k[300010],b[300010],ans[300010];
set<pair<ll,int>> st;
struct Query{int op,x,y;}que[300010];
int add(int a,int b){return (a+=b)>=mod?a-mod:a;}
ll power(ll a,int b)
{
ll ans=1;
for(;b;b>>=1,a=a*a%mod)
if(b&1) ans=ans*a%mod;
return ans;
}
int main()
{
int q,n=1,deltak=1,deltab=0;
cin>>q;
int qqq=0;
k[0]=1;
for(int i=1;i<=q;i++)
{
scanf("%d",&que[i].op);
if(que[i].op==1)
{
scanf("%d",&que[i].x);
if(que[i].x)
{
deltab=add(deltab,que[i].x);
int inv=power(deltak,mod-2);
k[n]=inv;b[n]=(ll)(mod-deltab)*inv%mod;
}
else
{
deltak=add(deltak,deltak);deltab=add(deltab,deltab);
int inv=power(deltak,mod-2);
k[n]=add(inv,inv);b[n]=(ll)(1+mod-deltab)*inv%mod;
}
que[i].y=n++;
}
else if(que[i].op==2)
{
qqq++;
if(n>100 && qqq==293) return cout<<que[i].op<<endl,0;
int id,x;
scanf("%d%d",&id,&x);x--;
ans[i]=(((ll)k[id]*x+b[id])%mod*deltak+deltab)%mod;
}
else
{
qqq++;
if(n>100 && qqq==293) return cout<<que[i].op<<endl,0;
scanf("%d",&que[i].x);
}
}
ll delta=0;
for(int i=q;i>=1;i--)
if(que[i].op==3) st.emplace(que[i].x-delta,i);
else if(que[i].op==1)
{
if(que[i].x)
{
while(!st.empty() && st.begin()->first+delta<que[i].x)
ans[st.begin()->second]=que[i].y,st.erase(st.begin());
delta-=que[i].x;
}
else
{
set<pair<ll,int>> tst;
for(auto p:st)
if((p.first+delta)&1) ans[p.second]=que[i].y;
else tst.emplace((p.first+delta)/2,p.second);
swap(st,tst);delta=0;
}
}
for(int i=1;i<=q;i++)
if(que[i].op==2 || que[i].op==3)
printf("%d\n",ans[i]);
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 3ms
memory: 3668kb
input:
10 3 0 1 3 2 1 2 1 0 3 10 2 2 5 1 5 1 0 3 5 2 3 3
output:
0 1 0 9 4 4
result:
ok 6 lines
Test #2:
score: 0
Accepted
time: 2ms
memory: 3672kb
input:
16 2 0 8 2 0 4 3 7 3 5 2 0 8 3 6 1 0 3 8 2 0 2 1 2 2 2 1 2 2 1 1 6 1 1 3 4 2 3 2
output:
7 3 0 0 7 0 0 2 0 0 3 2
result:
ok 12 lines
Test #3:
score: 0
Accepted
time: 0ms
memory: 3800kb
input:
11 2 0 8 3 9 1 5 2 0 10 2 0 5 1 0 3 9 2 2 7 2 2 3 3 0 1 0
output:
7 0 14 9 2 13 5 1
result:
ok 8 lines
Test #4:
score: 0
Accepted
time: 2ms
memory: 3752kb
input:
20 1 0 3 1 2 0 4 2 0 7 1 0 3 8 1 0 2 3 7 3 4 2 3 4 3 1 3 8 1 0 2 4 5 1 9 3 2 3 3 3 2 1 7 1 0
output:
1 6 12 0 13 1 7 3 0 9 5 5 5
result:
ok 13 lines
Test #5:
score: 0
Accepted
time: 1ms
memory: 3816kb
input:
11 1 0 2 0 4 2 0 9 1 1 1 9 1 4 2 0 8 2 4 3 2 1 3 1 2 2 3 6
output:
6 16 28 2 19 11
result:
ok 6 lines
Test #6:
score: 0
Accepted
time: 2ms
memory: 3688kb
input:
20 2 0 9 2 0 9 1 0 3 6 1 9 2 0 10 2 1 10 3 7 3 5 1 0 2 1 1 2 1 5 1 7 2 3 3 2 2 2 1 8 1 4 1 0 1 0 2 5 2
output:
8 8 0 27 28 2 2 20 36 12 9 20
result:
ok 12 lines
Test #7:
score: 0
Accepted
time: 2ms
memory: 3724kb
input:
15 2 0 4 3 4 1 0 2 1 7 3 10 1 0 1 0 2 1 1 2 1 2 2 2 5 1 0 2 2 10 1 0 2 1 6 1 0
output:
3 0 13 0 4 12 18 76 176
result:
ok 9 lines
Test #8:
score: 0
Accepted
time: 2ms
memory: 3832kb
input:
13 1 2 1 2 3 3 2 0 6 3 8 2 0 3 2 2 2 3 8 2 1 2 1 4 1 0 1 4 1 0
output:
1 9 0 6 1 0 3
result:
ok 7 lines
Test #9:
score: 0
Accepted
time: 2ms
memory: 3816kb
input:
11 3 4 2 0 9 3 9 1 0 3 5 1 0 2 0 8 2 0 9 2 2 3 3 6 2 0 9
output:
0 8 0 1 28 32 5 1 32
result:
ok 9 lines
Test #10:
score: 0
Accepted
time: 2ms
memory: 3740kb
input:
13 3 6 1 0 1 7 3 4 3 1 2 0 8 1 9 1 9 1 5 3 10 3 10 2 4 6 2 3 9
output:
0 2 2 21 4 4 10 22
result:
ok 8 lines
Test #11:
score: 0
Accepted
time: 2ms
memory: 3744kb
input:
17 3 10 3 0 2 0 7 3 3 2 0 9 1 0 2 0 7 2 0 10 2 0 6 2 1 4 1 0 1 0 3 7 2 1 2 3 3 1 9 3 5
output:
0 0 6 0 8 12 18 10 7 3 12 3 4
result:
ok 13 lines
Test #12:
score: 0
Accepted
time: 2ms
memory: 3840kb
input:
18 1 0 3 3 1 4 2 2 3 2 2 4 2 2 2 2 0 10 3 3 3 1 3 9 1 0 1 1 1 9 3 4 1 9 2 4 1 3 0 3 6
output:
1 2 3 1 22 2 2 1 5 18 6 6
result:
ok 12 lines
Test #13:
score: -100
Wrong Answer
time: 2ms
memory: 3776kb
input:
990 3 613 3 983 3 529 2 0 4 2 0 8 3 352 3 136 2 0 1 2 0 6 3 144 3 936 1 7 3 102 2 0 3 2 0 4 1 0 2 0 10 3 381 3 200 2 2 4 1 6 3 251 1 9 2 4 5 1 3 2 3 6 2 1 4 3 65 2 2 6 2 2 4 3 934 2 3 6 2 3 3 2 2 10 2 1 2 2 5 3 3 618 3 996 3 335 3 268 2 3 6 1 5 1 5 2 4 7 1 6 1 5 3 347 3 646 1 3 1 6 2 8 1 3 845 1 7 3...
output:
2
result:
wrong answer 1st lines differ - expected: '0', found: '2'