Submission #1130692

#	Time	Username	Problem	Language	Result	Execution time	Memory
1130692		Ludissey	Strange Device (APIO19_strange_device)	C++20	5 / 100	273 ms	15940 KiB

strange_device

#include <bits/stdc++.h>
#define int long long
#define sz(a) (int)a.size()
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
 
using namespace std;

signed main() {
    ios_base::sync_with_stdio(false); cin.tie(nullptr);
    int n,A,B; cin >> n >> A >> B;
    vector<pair<int,int>> a(n);
    for (int i = 0; i < n; i++)
    {
        int l,r; cin >> l >> r;
        a[i]={l,r};
    }
    int s=(a[0].second-a[0].first)+1;
    int lc=lcm(A,(B+1)%A);
    if(lc==0){
        cout << min(s,B) << "\n";
    }else {
        int step=A;
        step/=__gcd(A,(B+1)%A);
        if(s/B<step){
            cout << s << "\n";
        }else{
            step=step*B;
            cout << min(s,(step)) << "\n";
        }
    }
    return 0;
}

• Subtask 1: 0 / 10
• Subtask 2: 5 / 5
• Subtask 3: 0 / 5
• Subtask 4: 0 / 5
• Subtask 5: 0 / 5
• Subtask 6: 0 / 20
• Subtask 7: 0 / 20
• Subtask 8: 0 / 30