QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#141000 | #6740. Function | UFRJ# | WA | 830ms | 3652kb | C++20 | 640b | 2023-08-17 05:18:29 | 2023-08-17 05:18:31 |
Judging History
answer
#include<bits/stdc++.h>
using lint = int64_t;
using namespace std;
const int mod = 998244353;
int main(void) {
cin.tie(nullptr)->sync_with_stdio(false);
int n;
cin>>n;
vector<pair<int, int>>v;
for(int a = 1, b; a <= n; a = b + 1) {
b = n / (n / a);
v.push_back({a, b});
}
reverse(v.begin(), v.end());
int m = int(v.size());
vector<lint>dp(m, 1);
for(int i=0;i<m;i++){
auto [a, b] = v[i];
for(int j=i+1;j<m;j++){
auto [c, d] = v[j];
dp[j] += (b / c - ( (a + c - 1) / c ) + 1) * dp[i] % mod;
dp[j] %= mod;
}
}
cout<<dp[m-1]<<"\n";
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 3488kb
input:
1
output:
1
result:
ok 1 number(s): "1"
Test #2:
score: 0
Accepted
time: 1ms
memory: 3448kb
input:
2
output:
2
result:
ok 1 number(s): "2"
Test #3:
score: 0
Accepted
time: 1ms
memory: 3520kb
input:
100
output:
949
result:
ok 1 number(s): "949"
Test #4:
score: 0
Accepted
time: 1ms
memory: 3468kb
input:
10
output:
19
result:
ok 1 number(s): "19"
Test #5:
score: 0
Accepted
time: 1ms
memory: 3520kb
input:
1000
output:
48614
result:
ok 1 number(s): "48614"
Test #6:
score: 0
Accepted
time: 0ms
memory: 3500kb
input:
10000
output:
2602393
result:
ok 1 number(s): "2602393"
Test #7:
score: 0
Accepted
time: 0ms
memory: 3468kb
input:
100000
output:
139804054
result:
ok 1 number(s): "139804054"
Test #8:
score: 0
Accepted
time: 10ms
memory: 3512kb
input:
1000000
output:
521718285
result:
ok 1 number(s): "521718285"
Test #9:
score: 0
Accepted
time: 84ms
memory: 3604kb
input:
10000000
output:
503104917
result:
ok 1 number(s): "503104917"
Test #10:
score: -100
Wrong Answer
time: 830ms
memory: 3652kb
input:
100000000
output:
388373010
result:
wrong answer 1st numbers differ - expected: '198815604', found: '388373010'