제출 #564185

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
564185		hoanghq2004	Strange Device (APIO19_strange_device)	C++14	0 / 100	5101 ms	524288 KiB

strange_device

#include <bits/stdc++.h>
#pragma GCC optimize ("O3")
#pragma GCC optimize ("unroll-loops")
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace __gnu_pbds;
using namespace std;

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

int main() {
//    freopen("APIO19_strange_device.inp", "r", stdin);
//    freopen("APIO19_strange_device.out", "w", stdout);
    ios :: sync_with_stdio(0); cin.tie(0);
    int n;
    long long A, B;
    cin >> n >> A >> B;
    set <pair <long long, long long> > s;
    while (n--) {
        long long L, R;
        cin >> L >> R;
        for (int i = L; i <= R; ++i)
            s.insert({(i + i / B) % A, i % B});
    }
    cout << s.size();
}

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