QOJ.ac

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
#733668#9543. Good PartitionsSunlight9#WA 366ms38184kbC++203.2kb2024-11-10 20:24:062024-11-10 20:24:07

Judging History

你现在查看的是最新测评结果

  • [2024-11-10 20:24:07]
  • 评测
  • 测评结果:WA
  • 用时:366ms
  • 内存:38184kb
  • [2024-11-10 20:24:06]
  • 提交

answer

#include <bits/stdc++.h>

using namespace std;
using ll = long long;
const int MAXN=5e5+7;
int t;
int n,m;
int a[MAXN];
int cnt=0,prime[MAXN];
bool vis[MAXN];
void pre()
{
    int lim=5e5;
    vis[1]=1;
    for(int i=2;i<=lim;i++)
    {
        if(!vis[i]) prime[++cnt]=i;
        for(int j=1;j<=cnt && i*prime[j]<=lim;j++)
        {
            vis[i*prime[j]]=1;
            if(i%prime[j]==0) break;
        }
    }
    return;
}
set< pair<int,int> > s[MAXN/2];
int tot=0;
bool pd[MAXN];
int ton[MAXN];
set<int> id;
void add(int x)
{
    int lim=sqrt(x)+5;
    int sss=x;
    for(int i=1;i<=cnt;i++)
    {
        if(prime[i]>lim) break;
        if(x%prime[i]) continue;
        int numk=0;
        while(x%prime[i]==0) numk++,x/=prime[i];
        s[prime[i]].insert({numk,sss});
        if(!ton[prime[i]]) id.insert(prime[i]);
        ton[prime[i]]++;
    }
}
void del(int x)
{
    int lim=sqrt(x)+5;
    int sss=x;
    for(int i=1;i<=cnt;i++)
    {
        if(prime[i]>lim) break;
        if(x%prime[i]) continue;
        int numk=0;
        while(x%prime[i]==0) numk++,x/=prime[i];
        s[prime[i]].erase(s[prime[i]].find({numk,sss}));
        ton[prime[i]]--;
        if(!ton[prime[i]]) id.erase(prime[i]);
    }
}
int get_ans()
{
    int res=1;
    int numk=0;
    for(auto i : id)
    {
        int idk=i;
        if(s[idk].size()==tot)
        {
            auto it=s[idk].begin();
            int sumk=1,lim=(*it).first;
            for(int j=1;j<=lim;j++) sumk*=idk;
            res*=sumk;
        }
    }
    return res;
}
int get_num(int x)
{
    int res=0;
    for(int i=1;i*i<=x;i++)
    {
        if(x%i) continue;
        res++;
        if(i*i==x) break;
        res++;
    }
    return res;
}
int main() {
    cin.tie(nullptr) -> sync_with_stdio(false);
    
    pre();
    cin>>t;
    while(t--)
    {
        cin>>n>>m;
        for(int i=1;i<=n;i++) cin>>a[i];
        for(int i=2;i<=n;i++)
        {
            if(a[i]<a[i-1])
            {
                pd[i-1]=1;
                tot++;
                add(i-1);
            }
        }
        // cerr<<" asd"<<endl;
        int ans;
        if(tot==0) ans=n;
        else ans=get_num(get_ans());
        cout<<ans<<"\n";
        while(m--)
        {
            int loc,v;
            cin>>loc>>v;
            
            if(loc>1&&a[loc]<a[loc-1])
            {
                pd[loc-1]=0;
                tot--;
                del(loc-1);
            }
            if(loc<n&&a[loc+1]<a[loc])
            {
                pd[loc]=0;
                tot--;
                del(loc);
            }
            a[loc]=v;
            if(loc>1&&a[loc]<a[loc-1])
            {
                pd[loc-1]=1;
                tot++;
                add(loc-1);
            }
            if(loc<n&&a[loc+1]<a[loc])
            {
                pd[loc]=1;
                tot++;
                add(loc);
            }
            if(tot==0) ans=n;
            else ans=get_num(get_ans());
            cout<<ans<<'\n';
        }
        tot=0;
        id.clear();
        for(int i=0;i<=n;i++)
        {
            pd[i]=0;ton[i]=0;
            s[i].clear();
        }
    }
    return 0;
}

详细

Test #1:

score: 100
Accepted
time: 5ms
memory: 17888kb

input:

1
5 2
4 3 2 6 1
2 5
3 5

output:

1
2
3

result:

ok 3 lines

Test #2:

score: 0
Accepted
time: 4ms
memory: 18220kb

input:

1
1 1
2000000000
1 1999999999

output:

1
1

result:

ok 2 lines

Test #3:

score: 0
Accepted
time: 165ms
memory: 19504kb

input:

1
200000 200000
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 ...

output:

160
200000
160
200000
160
200000
160
200000
160
200000
160
200000
160
200000
160
200000
160
200000
160
200000
160
200000
160
200000
160
200000
160
200000
160
200000
160
200000
160
200000
160
200000
160
200000
160
200000
160
200000
160
200000
160
200000
160
200000
160
200000
160
200000
160
200000
160...

result:

ok 200001 lines

Test #4:

score: 0
Accepted
time: 366ms
memory: 38184kb

input:

1
200000 200000
200001 200000 199999 199998 199997 199996 199995 199994 199993 199992 199991 199990 199989 199988 199987 199986 199985 199984 199983 199982 199981 199980 199979 199978 199977 199976 199975 199974 199973 199972 199971 199970 199969 199968 199967 199966 199965 199964 199963 199962 1999...

output:

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
1
1
1
...

result:

ok 200001 lines

Test #5:

score: -100
Wrong Answer
time: 96ms
memory: 19596kb

input:

1
200000 200000
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 ...

output:

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
1
1
1
...

result:

wrong answer 1st lines differ - expected: '2', found: '1'