Submission #897821

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
897821	2024-01-03 18:13:20	Dec0Dedd	Strange Device (APIO19_strange_device)	C++14	100 / 100	1377 ms	118904 KiB

strange_device

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pii;
void solve() {
    ll n, a, b; cin>>n>>a>>b;
    a/=__gcd(a, b+1);
    ll md=1e18+10;
    if (a <= LLONG_MAX/b) md=a*b;
    map<ll, ll> cnt;
    for (int i=1; i<=n; ++i) {
        ll lf, rf; cin>>lf>>rf;
        if (rf-lf+1 >= md) {
            cout<<md<<"\n";
            return;
        } lf%=md, rf%=md;
        if (lf <= rf) {
            ++cnt[lf], --cnt[rf+1];
        } else {
            ++cnt[lf], --cnt[md];
            ++cnt[0], --cnt[rf+1];
        }
    } vector<pii> v;
 
 
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• Subtask 7: 20 / 20
• Subtask 8: 30 / 30