제출 #1005111

#제출 시각아이디문제언어결과실행 시간메모리
1005111vjudge1Strange Device (APIO19_strange_device)C++17
10 / 100
5068 ms524288 KiB
#include <bits/stdc++.h>
using namespace std;

#define int long long
int const N=2e5+5;
int const mod=1e9+7;


signed main(){
    int n,a,b;
    cin>>n>>a>>b;
    set<pair<int,int>> st;
    for(int i=0;i<n;i++){
        int l,r;
        cin>>l>>r;
        for(int t=l;t<=r;t++){
            int x=(t+(t/b))%a;
            int y=t%b;
            st.insert(make_pair(x,y));
        }
    }
    cout<<st.size()<<endl;
    return 0;
}
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