結果

問題 No.2940 Sigma Sigma Div Floor Problem
ユーザー hibit_athibit_at
提出日時 2024-10-18 22:15:04
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 19 ms / 6,000 ms
コード長 4,734 bytes
コンパイル時間 1,340 ms
コンパイル使用メモリ 118,008 KB
実行使用メモリ 6,824 KB
最終ジャッジ日時 2024-10-18 22:48:36
合計ジャッジ時間 9,296 ms
ジャッジサーバーID
（参考情報） 		judge5 / judge
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 2 ms
6,816 KB
testcase_01 AC 1 ms
6,820 KB
testcase_02 AC 2 ms
6,820 KB
testcase_03 AC 2 ms
6,816 KB
testcase_04 AC 2 ms
6,820 KB
testcase_05 AC 2 ms
6,824 KB
testcase_06 AC 2 ms
6,820 KB
testcase_07 AC 2 ms
6,824 KB
testcase_08 AC 2 ms
6,816 KB
testcase_09 AC 2 ms
6,820 KB
testcase_10 AC 2 ms
6,820 KB
testcase_11 AC 2 ms
6,820 KB
testcase_12 AC 2 ms
6,820 KB
testcase_13 AC 2 ms
6,820 KB
testcase_14 AC 2 ms
6,820 KB
testcase_15 AC 2 ms
6,820 KB
testcase_16 AC 1 ms
6,824 KB
testcase_17 AC 3 ms
6,816 KB
testcase_18 AC 15 ms
6,820 KB
testcase_19 AC 11 ms
6,816 KB
testcase_20 AC 10 ms
6,820 KB
testcase_21 AC 19 ms
6,816 KB
testcase_22 AC 4 ms
6,820 KB
testcase_23 AC 6 ms
6,820 KB
testcase_24 AC 10 ms
6,816 KB
testcase_25 AC 10 ms
6,820 KB
testcase_26 AC 12 ms
6,820 KB
testcase_27 AC 2 ms
6,820 KB
testcase_28 AC 19 ms
6,820 KB
testcase_29 AC 18 ms
6,816 KB
testcase_30 AC 3 ms
6,816 KB
testcase_31 AC 6 ms
6,820 KB
testcase_32 AC 3 ms
6,816 KB
08_evil_01.txt TLE -
権限があれば一括ダウンロードができます

ソースコード

diff # 

#include <algorithm>
#include <iostream>
#include <iomanip>
#include <limits.h>
#include <map>
#include <math.h>
#include <numeric>
#include <queue>
#include <set>
#include <sstream>
#include <string>
#include <utility>
#include <vector>
#include <stack>
#include <complex>

using namespace std;
#define rep(i, n) for (int i = 0; i < n; i++)
#define rep1(i, n) for (int i = 1; i < n + 1; i++)
#define rev(i, n) for (int i = n - 1; i >= 0; i--)
#define all(A) A.begin(), A.end()
#define itr(A, l, r) A.begin() + l, A.begin() + r
#define debug(var) cout << #var << " = " << var << endl;
typedef long long ll;

template <typename T1, typename T2>
ostream &operator<<(ostream &os, const pair<T1, T2> &p)
{
    os << "(" << p.first << "," << p.second << ")";
    return os;
}

template <typename T1, typename T2>
istream &operator>>(istream &is, pair<T1, T2> &p)
{
    is >> p.first >> p.second;
    return is;
}

template <typename T>
ostream &operator<<(ostream &os, const vector<T> &v)
{
    for (int i = 0; i < (int)v.size(); i++)
    {
        os << v[i] << (i + 1 != (int)v.size() ? " " : "");
    }
    return os;
}

template <typename T>
ostream &operator<<(ostream &os, const vector<vector<T>> &v)
{
    for (int i = 0; i < (int)v.size(); i++)
    {
        os << v[i] << endl;
    }
    return os;
}

template <typename T>
ostream &operator<<(ostream &os, const vector<vector<vector<T>>> &v)
{
    int n = v.size();
    int m = v[0].size();
    int p = v[0][0].size();
    rep(k, p)
    {
        os << "k = " << k << endl;
        rep(i, n)
        {
            rep(j, m)
            {
                os << v[i][j][k];
                if (j < m - 1)
                {
                    os << " ";
                }
                else
                {
                    os << endl;
                }
            }
        }
    }
    return os;
}

template <typename T>
istream &operator>>(istream &is, vector<T> &v)
{
    for (T &in : v)
        is >> in;
    return is;
}

template <typename T, typename S>
ostream &operator<<(ostream &os, map<T, S> &mp)
{
    for (auto &[key, val] : mp)
    {
        os << key << ":" << val << " ";
    }
    cout << endl;
    return os;
}

template <typename T>
ostream &operator<<(ostream &os, set<T> st)
{
    auto itr = st.begin();
    for (int i = 0; i < (int)st.size(); i++)
    {
        os << *itr << (i + 1 != (int)st.size() ? " " : "");
        itr++;
    }
    return os;
}

template <typename T>
ostream &operator<<(ostream &os, multiset<T> st)
{
    auto itr = st.begin();
    for (int i = 0; i < (int)st.size(); i++)
    {
        os << *itr << (i + 1 != (int)st.size() ? " " : "");
        itr++;
    }
    return os;
}

template <typename T>
ostream &operator<<(ostream &os, queue<T> q)
{
    while (q.size())
    {
        os << q.front() << " ";
        q.pop();
    }
    return os;
}

template <typename T>
ostream &operator<<(ostream &os, deque<T> q)
{
    while (q.size())
    {
        os << q.front() << " ";
        q.pop_front();
    }
    return os;
}

template <typename T>
ostream &operator<<(ostream &os, stack<T> st)
{
    while (st.size())
    {
        os << st.top() << " ";
        st.pop();
    }
    return os;
}

template <typename T>
ostream &operator<<(ostream &os, priority_queue<T> pq)
{
    while (pq.size())
    {
        os << pq.top() << " ";
        pq.pop();
    }
    return os;
}

template <typename T>
ostream &operator<<(ostream &os, priority_queue<T, vector<T>, greater<T>> mpq)
{
    while (mpq.size())
    {
        os << mpq.top() << " ";
        mpq.pop();
    }
    return os;
}
vector<ll> divisor(ll n)
{
  vector<ll> ans;
  for (ll i = 1; i * i <= n; i++)
  {
    if (n % i == 0)
    {
      ans.push_back(i);
      if (i * i != n)
      {
        ans.push_back(n / i);
      }
    }
  }
  sort(all(ans));
  return ans;
}
#include <atcoder/modint>
using namespace atcoder;
using mint=modint998244353;
ostream &operator<<(ostream &os, mint &i)
{
    os << i.val();
    return os;
}

ostream &operator<<(ostream &os, const vector<mint> &v)
{
    for (int i = 0; i < (int)v.size(); i++)
    {
        os << v[i].val() << (i + 1 != (int)v.size() ? " " : "");
    }
    return os;
}
int main(){
    ll n;
    cin >> n;
    // for(int i=1;i<=n;i++){
    //     for(int j=1;j<=i;j++){
    //         cout << i/j << " ";
    //     }
    //     cout << endl;
    // }
    mint ans = 0;
    for(ll col=1;col<=n;col++){
        ll target = n-col+1;
        ll span = target/col;
        // debug(span);
        ans += span*(span+1)/2*col;
        ll remainder = target%col;
        // debug(remainder);
        // debug(target/span+1);
        ans += remainder*(target/col+1);
        // debug(ans);
    }
    cout << ans << endl;
}
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