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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 |
---|---|---|---|---|---|---|---|---|---|
#141001 | #6740. Function | UFRJ# | TL | 866ms | 3704kb | C++20 | 736b | 2023-08-17 05:23:52 | 2023-08-17 05:23:56 |
Judging History
answer
#include<bits/stdc++.h>
using lint = int64_t;
using namespace std;
const int mod = 998244353;
const int lim = 20210926;
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];
int l = (a + c - 1) / c, r = (b / c);
int cnt = (l > lim) ? 0 : min(r, lim) - l + 1;
dp[j] += cnt * dp[i] % mod;
dp[j] %= mod;
}
}
cout<<dp[m-1]<<"\n";
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 1ms
memory: 3456kb
input:
1
output:
1
result:
ok 1 number(s): "1"
Test #2:
score: 0
Accepted
time: 1ms
memory: 3404kb
input:
2
output:
2
result:
ok 1 number(s): "2"
Test #3:
score: 0
Accepted
time: 1ms
memory: 3456kb
input:
100
output:
949
result:
ok 1 number(s): "949"
Test #4:
score: 0
Accepted
time: 1ms
memory: 3452kb
input:
10
output:
19
result:
ok 1 number(s): "19"
Test #5:
score: 0
Accepted
time: 1ms
memory: 3456kb
input:
1000
output:
48614
result:
ok 1 number(s): "48614"
Test #6:
score: 0
Accepted
time: 1ms
memory: 3468kb
input:
10000
output:
2602393
result:
ok 1 number(s): "2602393"
Test #7:
score: 0
Accepted
time: 2ms
memory: 3532kb
input:
100000
output:
139804054
result:
ok 1 number(s): "139804054"
Test #8:
score: 0
Accepted
time: 7ms
memory: 3560kb
input:
1000000
output:
521718285
result:
ok 1 number(s): "521718285"
Test #9:
score: 0
Accepted
time: 84ms
memory: 3580kb
input:
10000000
output:
503104917
result:
ok 1 number(s): "503104917"
Test #10:
score: 0
Accepted
time: 866ms
memory: 3704kb
input:
100000000
output:
198815604
result:
ok 1 number(s): "198815604"
Test #11:
score: -100
Time Limit Exceeded
input:
1000000000