제출 #1010143

#제출 시각아이디문제언어결과실행 시간메모리
1010143RandomUser이상한 기계 (APIO19_strange_device)C++17
10 / 100
5035 ms524288 KiB
#include <bits/stdc++.h>
using namespace std;
using ll = long long;

const int mod = 1e9 + 7;

int main() {
    ll n, A, B;
    cin >> n >> A >> B;

    set<pair<ll, ll> > st;
    for(int i=0; i<n; i++) {
        ll L, R;
        cin >> L >> R;
        for(auto j=L; j<=R; j++) {
            st.insert(make_pair( (j + j / B) % A, j % B ));
        }
    }

    cout << st.size() << '\n';
    return 0;
}
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