QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#347511 | #6740. Function | wtz2333 | AC ✓ | 467ms | 5896kb | C++17 | 1.2kb | 2024-03-09 14:05:21 | 2024-03-09 14:05:21 |
Judging History
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"