제출 #972890

#제출 시각아이디문제언어결과실행 시간메모리
972890UnforgettableplStrange Device (APIO19_strange_device)C++17
10 / 100
5058 ms524288 KiB
#include <bits/stdc++.h>
using namespace std;

#define int long long

int32_t main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int n,A,B;
    cin >> n >> A >> B;
    set<pair<int,int>> answers;
    for(int i=1;i<=n;i++){
        int l,r;cin>>l>>r;
        for(int x=l;x<=r;x++){
            answers.insert({(x+(x/B))%A,x%B});
        }
    }
    cout << answers.size() << '\n';
}
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