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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
#771458#9543. Good PartitionsyimgWA 249ms7888kbC++201.9kb2024-11-22 13:13:332024-11-22 13:13:34

Judging History

你现在查看的是最新测评结果

  • [2024-11-22 13:13:34]
  • 评测
  • 测评结果:WA
  • 用时:249ms
  • 内存:7888kb
  • [2024-11-22 13:13:33]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
using i64 = long long;
const int N = 2e5 + 5;
int dnum[N];
void init(){
    for(i64 i = 1; i <= N; ++i){
        for(i64 j = 1; j * j <= i; ++j){
            if(j * j == i) dnum[i]++;
            else if(i % j == 0) dnum[i] += 2;
        }
    }
    // dnum[0] = 1;
}
struct Segment{
    int n;
    vector<int> tr;
    Segment(int n_){
        n = n_ + 1;
        tr.resize(n * 4 + 50, 0);
    }
    void pull(int p){
       
        tr[p] = __gcd(tr[p*2], tr[p*2 + 1]);
        // cout << "PPP : " << tr[p * 2] << " " << tr[p *  2 + 1] << " " << tr[p] << "\n";
    }
    void update(int x, int v){
        update(1, 1, n, x, v);
    }
    void update(int p, int l, int r, int x, int v){
        // cout << p << ' ' << l << " " << r << "\n";
        if(r - l == 1){
            tr[p] = v;
            return;
        }
        int m = l + r >> 1;
        if(x < m) update(p*2, l, m, x, v);
        else update(p*2 + 1, m, r, x, v);
        pull(p);
    }
    int query(){
        return tr[1];
    }
};
void work()
{
    int n, q;
    cin >> n >> q;
    vector<int> a(n + 1);
    Segment seg(n);
    for(int i = 1; i <= n; ++i){
        cin >> a[i];
    }
    for(int i = 1; i < n; ++i){
        if(a[i] > a[i + 1]) seg.update(i, i);
    }
    // cout << seg.query() << " ";
    dnum[0] = n;
    cout << dnum[seg.query()] << "\n";
    while(q--){
        int i, x;
        cin >> i >> x;
        a[i] = x;
        if(i + 1 <= n && a[i] > a[i + 1]) seg.update(i, i);
        else seg.update(i, 0);
        if(i && a[i - 1] > a[i]) seg.update(i - 1, i - 1);
        else seg.update(i - 1, 0);
        // cout << seg.query() << " ";
        cout << dnum[seg.query()] << "\n";
    }
}
int main()
{

    ios::sync_with_stdio(0);
    cin.tie(0);
    int t;
    cin >> t;
    init();
    while(t--)
        work();
}

詳細信息

Test #1:

score: 100
Accepted
time: 180ms
memory: 4400kb

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: 181ms
memory: 4284kb

input:

1
1 1
2000000000
1 1999999999

output:

1
1

result:

ok 2 lines

Test #3:

score: 0
Accepted
time: 233ms
memory: 7816kb

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: 249ms
memory: 7888kb

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: 0
Accepted
time: 234ms
memory: 7732kb

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:

2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
...

result:

ok 200001 lines

Test #6:

score: 0
Accepted
time: 180ms
memory: 4288kb

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
2
1
1
1
1
1
1
1
1
1
1

result:

ok 12 lines

Test #7:

score: -100
Wrong Answer
time: 180ms
memory: 4636kb

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:

1
1
1
2
2
2
1
1
1
1
1
1
1
1
1
1
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
1
2
2
2
2
2
2
2
2
1
1
1
1
2
2
2
1
2
2
1
2
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 4th lines differ - expected: '1', found: '2'