제출 #129728

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
129728	2019-07-13 05:55:16	pr3pony	이상한 기계 (APIO19_strange_device)	C++14	100 / 100	1257 ms	63660 KiB

strange_device

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#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll inf = 1e18;
typedef pair<ll,ll> pll;
#define R first
#define L second
set<pll> s;
void add(pll p)
{
    for (auto it = s.lower_bound({p.L,-1}); it != end(s) && it->L <= p.R; s.erase(it++)) {
        p.L = min(p.L, it->L);
        p.R = max(p.R, it->R);
    }
    s.insert(p);
}
int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    int n;
    ll A,B,ans=0;
    cin >> n >> A >> B;
    A /= __gcd(A,B+1);
    if (A > inf / B) {
        while (n--) {
            ll l,r;
            cin >> l >> r;
            ans += r - l + 1;
        }
 
 
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