제출 #1313299

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1313299		Timosh	이상한 기계 (APIO19_strange_device)	C++20	0 / 100	5094 ms	589824 KiB

strange_device

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;

template <typename T>
using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
template <typename T>
using ordered_multiset = tree<T, null_type, less_equal<T>, rb_tree_tag, tree_order_statistics_node_update>;

#define int long long
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define vi vector<int>
#define vii vector<vi>
#define ld long double
#define pii pair<int, int>
mt19937 mt(time(0));

namespace io
{
    template <typename T, typename F>
    istream &operator>>(istream &cin, pair<T, F> &pr)
    {
        cin >> pr.first >> pr.second;
        return cin;
    }
    template <typename T, typename F>
    ostream &operator<<(ostream &cout, pair<T, F> &pr)
    {
        cout << pr.first << ' ' << pr.second;
        return cout;
    }
    template <typename T>
    istream &operator>>(istream &cin, vector<T> &vec)
    {
        for (T &i : vec)
            cin >> i;
        return cin;
    }
    template <typename T>
    ostream &operator<<(ostream &cout, vector<T> vec)
    {
        for (T i : vec)
            cout << i << ' ';
        return cout;
    }
}
using namespace io;

void solve()
{
    int n, a, b;
    int inf = 1e18;
    cin >> n >> a >> b;
    vector<pii> v(n);
    cin >> v;
    int m = a;
    if (inf / b < a)
        m = inf;
    else
        m = a * b;
        set<int> st;
    for (auto &[l, r] : v)
        for (int i = l; i <= r; i++)
            st.insert(i%m);
    cout << st.size();
}

signed main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    int t = 1;
    // cin >> t;
    while (t--)
        solve(), cout << '\n';
    return 0;
}

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