제출 #225676

#제출 시각아이디문제언어결과실행 시간메모리
225676BeanZ이상한 기계 (APIO19_strange_device)C++14
0 / 100
5093 ms405264 KiB
#include <bits/stdc++.h>
using namespace std;

#define ull unsigned long long
#define endl '\n'
#define ll long long
const int N = 1e6 + 5;
pair<ll, ll> c[N];
int main(){
        ios_base::sync_with_stdio(false);
        cin.tie(0);
        cout.tie(0);
        //freopen("VLJUM.INP", "r", stdin);
        //freopen("VLJUM.OUT", "w", stdout);
        ll n, a, b;
        cin >> n >> a >> b;
        ll sum = 0;
        for (int i = 1; i <= n; i++){
                cin >> c[i].first >> c[i].second;
                sum += c[i].second - c[i].first + 1;
        }
        if (sum <= 1000000){
                set<pair<ll,ll>> mem;
                for (int i = 1; i <= n; i++){
                        for (int j = c[i].first; j <= c[i].second; j++){
                                mem.insert({(j + j/b) % a, j % b});
                        }
                }
                cout << mem.size();
        } else {
                cout << 0;
        }
        return 0;
}
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