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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#347511#6740. Functionwtz2333AC ✓467ms5896kbC++171.2kb2024-03-09 14:05:212024-03-09 14:05:21

Judging History

你现在查看的是最新测评结果

  • [2024-03-09 14:05:21]
  • 评测
  • 测评结果:AC
  • 用时:467ms
  • 内存:5896kb
  • [2024-03-09 14:05:21]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const int mo = 998244353;
int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n;
    cin >> n;
    unordered_map<int,int> mp;
    auto calc = [&](auto self,int x) -> int {
        if(x == 0)return 0;
        if(mp.count(x)) return mp[x];
        int l = 2,r;
        ll ans = 1;
        while(l <= 20210926){
            ll t = x / l;
            if(t) r = min(x / (x / l),20210926);
            else r = 20210926;
            ans += 1ll * (r - l + 1) * self(self,x / l) % mo;
            ans %= mo;
            l = r + 1;
        }
        return mp[x] = ans;
    };
    if(n > 1) {
        cout << calc(calc,n) << endl;

    }else {
        ll ans = 0;
        int cnt = 1;
        vector<int> f(n + 1,1);
        for(int i = n - 1;i >= 1;i --) {
            for(int j = 2 * i;j <= n;j += i) {
                f[i] += f[j];
                // cerr << f[j] << " ";
            }//cerr << endl;
        }
        cout << f[1] << endl;
    }
}


// n / 20210926 <= k


/// 1 2 3 4 5 6 7 8

// 14 5 2 2 1 1 1 1

// 13 4 1 1 0 0 0 0

// 12 3 0 0 0 0 0 0

// 

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3872kb

input:

1

output:

1

result:

ok 1 number(s): "1"

Test #2:

score: 0
Accepted
time: 0ms
memory: 3524kb

input:

2

output:

2

result:

ok 1 number(s): "2"

Test #3:

score: 0
Accepted
time: 0ms
memory: 3648kb

input:

100

output:

949

result:

ok 1 number(s): "949"

Test #4:

score: 0
Accepted
time: 0ms
memory: 3524kb

input:

10

output:

19

result:

ok 1 number(s): "19"

Test #5:

score: 0
Accepted
time: 0ms
memory: 3848kb

input:

1000

output:

48614

result:

ok 1 number(s): "48614"

Test #6:

score: 0
Accepted
time: 1ms
memory: 3888kb

input:

10000

output:

2602393

result:

ok 1 number(s): "2602393"

Test #7:

score: 0
Accepted
time: 1ms
memory: 3848kb

input:

100000

output:

139804054

result:

ok 1 number(s): "139804054"

Test #8:

score: 0
Accepted
time: 3ms
memory: 3664kb

input:

1000000

output:

521718285

result:

ok 1 number(s): "521718285"

Test #9:

score: 0
Accepted
time: 14ms
memory: 3856kb

input:

10000000

output:

503104917

result:

ok 1 number(s): "503104917"

Test #10:

score: 0
Accepted
time: 77ms
memory: 4260kb

input:

100000000

output:

198815604

result:

ok 1 number(s): "198815604"

Test #11:

score: 0
Accepted
time: 456ms
memory: 5896kb

input:

1000000000

output:

373787809

result:

ok 1 number(s): "373787809"

Test #12:

score: 0
Accepted
time: 457ms
memory: 5896kb

input:

999999999

output:

997616263

result:

ok 1 number(s): "997616263"

Test #13:

score: 0
Accepted
time: 460ms
memory: 5764kb

input:

999999990

output:

997615701

result:

ok 1 number(s): "997615701"

Test #14:

score: 0
Accepted
time: 462ms
memory: 5736kb

input:

999999900

output:

993928691

result:

ok 1 number(s): "993928691"

Test #15:

score: 0
Accepted
time: 464ms
memory: 5740kb

input:

999999000

output:

754532207

result:

ok 1 number(s): "754532207"

Test #16:

score: 0
Accepted
time: 465ms
memory: 5736kb

input:

999990000

output:

996592686

result:

ok 1 number(s): "996592686"

Test #17:

score: 0
Accepted
time: 465ms
memory: 5744kb

input:

999900000

output:

311678722

result:

ok 1 number(s): "311678722"

Test #18:

score: 0
Accepted
time: 467ms
memory: 5760kb

input:

999000000

output:

60462624

result:

ok 1 number(s): "60462624"

Test #19:

score: 0
Accepted
time: 462ms
memory: 5744kb

input:

990000000

output:

444576800

result:

ok 1 number(s): "444576800"

Test #20:

score: 0
Accepted
time: 424ms
memory: 5788kb

input:

900000000

output:

95615129

result:

ok 1 number(s): "95615129"

Test #21:

score: 0
Accepted
time: 0ms
memory: 3624kb

input:

1361956

output:

813433539

result:

ok 1 number(s): "813433539"

Test #22:

score: 0
Accepted
time: 12ms
memory: 3760kb

input:

7579013

output:

677659797

result:

ok 1 number(s): "677659797"

Test #23:

score: 0
Accepted
time: 12ms
memory: 3820kb

input:

8145517

output:

801509527

result:

ok 1 number(s): "801509527"

Test #24:

score: 0
Accepted
time: 11ms
memory: 3744kb

input:

6140463

output:

869023935

result:

ok 1 number(s): "869023935"

Test #25:

score: 0
Accepted
time: 7ms
memory: 3740kb

input:

3515281

output:

989091505

result:

ok 1 number(s): "989091505"

Test #26:

score: 0
Accepted
time: 11ms
memory: 4100kb

input:

6969586

output:

539840131

result:

ok 1 number(s): "539840131"