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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#133539#4936. Shopping ChangesDelay_for_five_minutes#WA 46ms8632kbC++141.6kb2023-08-02 10:49:302023-08-02 10:50:34

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2023-08-02 10:50:34]
  • 评测
  • 测评结果:WA
  • 用时:46ms
  • 内存:8632kb
  • [2023-08-02 10:49:30]
  • 提交

answer

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

const int N=1e5+3;
int n,m,a[N];
vector<int> b[N];
int buc[N*3],tot=0;
struct bit{
    int c[N];
    void upd(int x,int y){
        for(;x<=tot;x+=x&-x)c[x]+=y;
    }
    int qry(int x){
        int r=0;
        for(;x;x-=x&-x)r+=c[x];
        return r;
    }
}c1,c2;
int main(){
    ios::sync_with_stdio(0);cin.tie(0);
    cin>>n>>m;
    for(int i=1;i<=n;++i){
        cin>>a[i];
        buc[++tot]=a[i];
    }
    for(int i=1;i<=m;++i){
        int k;
        cin>>k;
        b[i].resize(k);
        for(int j=0;j<k;++j){
            cin>>b[i][j];
            buc[++tot]=b[i][j];
        }
    }
    sort(buc+1,buc+tot+1),tot=unique(buc+1,buc+tot+1)-buc-1;
    for(int i=1;i<=n;++i)a[i]=lower_bound(buc+1,buc+tot+1,a[i])-buc;
    for(int i=1;i<=m;++i)
        for(int& x:b[i])
            x=lower_bound(buc+1,buc+tot+1,x)-buc;
    ll s1=0;
    for(int i=1;i<=n;++i){
        s1+=i-1-c1.qry(a[i]-1);
        c1.upd(a[i],1);
    }
    for(int i=1;i<=m;++i){
        int k=b[i].size();
        ll s2=0;
        for(int j=0;j<k;++j){
            s2+=j-c2.qry(b[i][j]);
            c2.upd(b[i][j],1);
        }
        ll s3=0,now=0;
        for(int j=0;j<k;++j)
            now+=n-c1.qry(b[i][j]);
        s3=now;
        for(int j=0;j<k;++j){
            now+=c1.qry(b[i][j]-1);
            now-=n-c1.qry(b[i][j]);
            s3=min(s3,now);
        }
        //cout<<s1<<' '<<s2<<' '<<s3<<'\n';
        cout<<s1+s2+s3<<'\n';
        for(int j=0;j<k;++j)c2.upd(b[i][j],-1);
    }
}

Details

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Test #1:

score: 100
Accepted
time: 2ms
memory: 5840kb

input:

3 3
5 6 7
6 2 3 4 8 9 10
2 100 99
3 5 6 7

output:

0
1
1

result:

ok 3 lines

Test #2:

score: 0
Accepted
time: 2ms
memory: 7564kb

input:

3 2
7 6 5
6 2 3 4 8 9 10
6 10 9 8 4 3 2

output:

3
27

result:

ok 2 lines

Test #3:

score: 0
Accepted
time: 2ms
memory: 7132kb

input:

1 1
589284012
1 767928734

output:

0

result:

ok single line: '0'

Test #4:

score: -100
Wrong Answer
time: 46ms
memory: 8632kb

input:

10000 9999
298772847 712804102 869795012 527998188 804246450 598105371 843966934 639805471 937482040 887551242 254734680 188704975 17408126 626523673 553956319 697723205 231690822 637079761 232393146 377026277 962223856 338922458 912529500 710873344 942955137 51167037 195729799 529674367 990599310 4...

output:

-897054591698
-899799628573
-896076047403
-896188510496
-901842714297
-896832657763
-898973213449
-897721909070
-898684861253
-897313870013
-901019687686
-898767635285
-902280424154
-897048955085
-902313794959
-898037655966
-898523115375
-904538122481
-897576546278
-893996744818
-895956459259
-89964...

result:

wrong answer 1st lines differ - expected: '24802338', found: '-897054591698'