QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#793576#9543. Good PartitionsPepinotTL 483ms15876kbC++231.6kb2024-11-29 21:15:182024-11-29 21:15:20

Judging History

你现在查看的是最新测评结果

  • [2024-11-29 21:15:20]
  • 评测
  • 测评结果:TL
  • 用时:483ms
  • 内存:15876kb
  • [2024-11-29 21:15:18]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
#define int long long
#define ld long double
using pii=pair<int,int>;
const int mod=998244353;

int n;
set<int> st;
vector<int> yin(2e5+5);

int ope() {
    if(st.empty()) return n;

    int w=*st.begin();

    for(auto i:st) {
        w=__gcd(w,i);
        if(w==1) break;
    }

    return yin[w];
}

void solve() {
    int q;
    cin>>n>>q;
    vector<int> v(n+2);
    v[0]=2e9+1,v[n+1]=0;
    for(int i=1; i<=n; i++) cin>>v[i];

    // vector<int> bad;
    st.clear();
    for(int i=1; i<n; i++) {
        if(v[i]>v[i+1]) {
            // bad.push_back(i);
            st.insert(i);
        }
    }

    // int cnt_bad=0;
    // for(int i=0; i<bad.size()-1; i++)
    //     if(bad[i+1]-bad[i]==1) cnt_bad++;

    cout<<ope()<<endl;
    while(q--) {
        int a,b; cin>>a>>b;

        //多了一个
        if(v[a-1]<=v[a]&&v[a-1]>b) {
            st.insert(a-1);
        }
        if(v[a]<=v[a+1]&&b>v[a+1]) {
            st.insert(a);
        }

        //少了一个
        if(v[a-1]>v[a]&&v[a-1]<=b) {
            st.erase(a-1);
        }
        if(v[a]>v[a+1]&&b<=v[a+1]) {
            st.erase(a);
        }

        v[a]=b;

        cout<<ope()<<endl;

    }
}


void pre() {
    for(int i=1; i<=2e5; i++) {
        for(int j=1; j<i/j; j++)
            if(i%j==0) yin[i]+=2;
        if(sqrt(i)==ceil(sqrt(i))) yin[i]++;
    }
}
signed main(){
    ios::sync_with_stdio(false),cin.tie(nullptr);

    pre();
    int t; cin>>t;
    while(t--)
        solve();

}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 352ms
memory: 4512kb

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: 352ms
memory: 4552kb

input:

1
1 1
2000000000
1 1999999999

output:

1
1

result:

ok 2 lines

Test #3:

score: 0
Accepted
time: 445ms
memory: 6276kb

input:

1
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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:

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result:

ok 200001 lines

Test #4:

score: 0
Accepted
time: 483ms
memory: 15876kb

input:

1
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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:

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...

result:

ok 200001 lines

Test #5:

score: 0
Accepted
time: 449ms
memory: 6376kb

input:

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output:

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...

result:

ok 200001 lines

Test #6:

score: 0
Accepted
time: 347ms
memory: 4532kb

input:

2
2 2
17017 63462
2 94054
2 13504
8 8
14380 5840 34752 73602 60279 26105 44308 78318
7 8597
2 70671
6 56663
5 90093
5 96853
3 10700
1 76875
6 27325

output:

2
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1
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1

result:

ok 12 lines

Test #7:

score: 0
Accepted
time: 348ms
memory: 4536kb

input:

10
9 15
850456 510799 912572 938543 215712 758501 850577 149454 330027
7 740992
7 73826
1 993823
7 143019
8 152824
2 109975
5 151989
7 851016
3 157534
8 491512
6 987473
7 272348
3 842756
4 278214
5 707564
10 17
494099 922564 124251 422938 100551 915266 18436 74858 885629 897256
8 798574
7 49544
7 83...

output:

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result:

ok 110 lines

Test #8:

score: 0
Accepted
time: 349ms
memory: 4516kb

input:

10
133 246
140510 608816 589575 476955 565233 554161 572604 339315 619706 665193 478181 434356 152086 642681 20634 515330 792629 985669 964199 254936 124166 33376 866759 559350 243009 210630 84226 54133 562576 188482 341088 287802 931163 132016 885704 128841 718254 917725 716410 175025 922633 18826 ...

output:

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...

result:

ok 1010 lines

Test #9:

score: 0
Accepted
time: 362ms
memory: 5116kb

input:

10
3872 687
44064166 27154700 47734073 23232952 85900163 60570475 79562375 95316865 5283870 83145253 18727311 84521331 87003172 67383345 87258243 56070949 93690923 24354578 82428308 54239011 31728698 60725336 28686234 19515381 86019850 20774145 91634419 99792041 34779827 43899611 5776212 38860142 22...

output:

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...

result:

ok 10010 lines

Test #10:

score: 0
Accepted
time: 450ms
memory: 6096kb

input:

10
16568 3726
108245963 1072826507 922424573 1724795997 821224456 920893777 1197351187 1750418758 475004108 473502990 1018456990 1361563534 750892494 1656602758 1227777726 25842374 1616734168 755178190 1192059348 549671897 71441917 604937525 380135847 1750880898 478060006 1256638169 469752575 429941...

output:

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...

result:

ok 200010 lines

Test #11:

score: -100
Time Limit Exceeded

input:

10
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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 1...

output:

49420
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result: