QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#190375#1944. Circle of FriendsSolitaryDream#AC ✓188ms37080kbC++201.5kb2023-09-28 19:34:432023-09-29 03:29:49

Judging History

你现在查看的是最新测评结果

  • [2023-09-29 03:29:49]
  • 管理员手动重测该提交记录
  • 测评结果:AC
  • 用时:188ms
  • 内存:37080kb
  • [2023-09-29 03:29:42]
  • 管理员手动重测该提交记录
  • 测评结果:100
  • 用时:189ms
  • 内存:37376kb
  • [2023-09-28 19:34:45]
  • 评测
  • 测评结果:100
  • 用时:194ms
  • 内存:37892kb
  • [2023-09-28 19:34:43]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;

#define int long long

const int N=2e5+1e3+7,P=998244353;

int n,a[N];

int f[N],s[N];

int st[21][N];

int qry(int l,int r)
{
    int k=__lg(r-l+1);
    return st[k][l]&st[k][r-(1<<k)+1];
}

signed main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    cin>>n;
    vector<int> v;
    for(int i=1;i<=n;i++)
    {
        cin>>a[i];
        if(!v.size())
            v.push_back(a[i]);
        else
        {
            if((v.back()&a[i])!=v.back())
                v.push_back(v.back()&a[i]);
        }
    }
    for(int i=1;i<=n;i++)
        st[0][i]=a[i];
    for(int j=1;j<=20;j++)
        for(int i=1;i+(1<<j)-1<=n;i++)
            st[j][i]=(st[j-1][i]&st[j-1][i+(1<<(j-1))]);
    int ans=0;
    //start from 0
    for(int i=1,j=1;i<=n;i++)
    {
        while(qry(j,i)==0)
            j++;
        f[i]=(s[i-1]-(j<2?0:s[j-2])+P)%P;
        if(qry(1,i)!=0)
            f[i]=(f[i]+1)%P;
        s[i]=(s[i-1]+f[i])%P;
    }
    ans=(ans+f[n])%P;
    for(auto val:v)
    {
        if(val==0)
            continue;
        for(int i=1,j=1;i<=n;i++)
        {
            f[i]=0;
            while(qry(j,i)==0)
                j++;
            f[i]=(s[i-1]-(j<2?0:s[j-2])+P)%P;
            if(qry(1,i)==val)
                f[i]=(f[i]+1)%P;
            s[i]=(s[i-1]+f[i])%P;
            if(i!=n&&((qry(i+1,n)&val)!=0))
                ans=(ans+f[i])%P;
        }
    }
    if(v.back()!=0)
        ans=(ans-n+1+P)%P;
    printf("%lld\n",ans);
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 5812kb

input:

1
1

output:

1

result:

ok single line: '1'

Test #2:

score: 0
Accepted
time: 1ms
memory: 5696kb

input:

1
1152921504606846975

output:

1

result:

ok single line: '1'

Test #3:

score: 0
Accepted
time: 11ms
memory: 36340kb

input:

200000
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1...

output:

792053081

result:

ok single line: '792053081'

Test #4:

score: 0
Accepted
time: 31ms
memory: 36152kb

input:

200000
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606...

output:

792053081

result:

ok single line: '792053081'

Test #5:

score: 0
Accepted
time: 33ms
memory: 36228kb

input:

200000
18031990763159554
108095195748368386
36029346783428610
184085739649376272
577639437895209218
72057594042191904
4508276314083330
9078671805521920
144255925580990466
432490704060547904
72059793094738017
562967269607456
26424786302976
68719476738
333275855713337352
11370333479109156
290271086772...

output:

697849429

result:

ok single line: '697849429'

Test #6:

score: 0
Accepted
time: 40ms
memory: 36540kb

input:

200000
38878877261704467
606583538776039621
325557318447172624
513696235393139082
288309595180245073
22000404187620950
28465258695911754
432534927738538528
217932069505099992
8444275091048961
378456596858036610
909745820721741897
10707049231951490
869769773255361289
1054197601224687632
2974146034978...

output:

472024961

result:

ok single line: '472024961'

Test #7:

score: 0
Accepted
time: 46ms
memory: 36628kb

input:

200000
231835759121035702
510237390901680560
1089228954142887951
546561500990948259
452812301317437416
674492659073810407
610376405449845423
336095507987037999
1104321677521773827
257064906190991194
551711390461204674
320506912224540602
57990152440076744
845010071877357771
403229887439671683
2693178...

output:

117345155

result:

ok single line: '117345155'

Test #8:

score: 0
Accepted
time: 73ms
memory: 36332kb

input:

200000
1041523633558056719
1133745259996491747
395753651864850428
1151926721450571413
1114422491360386046
1152921229520204786
1116662492370558395
1006273041715269578
86101463265049534
359143197109542363
242065648916576479
903956062749589338
1091893347132366767
670735077154993663
1142330444352434159
...

output:

648136624

result:

ok single line: '648136624'

Test #9:

score: 0
Accepted
time: 87ms
memory: 36488kb

input:

200000
1148136361283288575
864128178497519103
504403123704430591
1080722898202656703
1150660907089100671
1148417885111055871
1133781167519004367
1152921229712162815
1152902245931548635
1152846703454314239
1152358485925492735
1134766329820016511
1080863910560530363
1071715973758713727
468354552857362...

output:

21378100

result:

ok single line: '21378100'

Test #10:

score: 0
Accepted
time: 158ms
memory: 37064kb

input:

200000
576460752303419383
1150669704793159679
1152921504606846847
1152921504598458367
1143914030474199039
1152921504606846975
1152921504606846967
1152921504590069759
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152640029630136319
11529215046068...

output:

557285638

result:

ok single line: '557285638'

Test #11:

score: 0
Accepted
time: 188ms
memory: 36516kb

input:

200000
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606...

output:

438039103

result:

ok single line: '438039103'

Test #12:

score: 0
Accepted
time: 175ms
memory: 36408kb

input:

200000
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606...

output:

440098984

result:

ok single line: '440098984'

Test #13:

score: 0
Accepted
time: 129ms
memory: 37080kb

input:

200000
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606846975
1152921504606...

output:

413438309

result:

ok single line: '413438309'