Submission #359369

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
359369	2021-01-27T00:44:00 Z	eyangch	Strange Device (APIO19_strange_device)	C++17	65 / 100	894 ms	100544 KB

strange_device

#include <bits/stdc++.h>
#define endl "\n"
#define fi first
#define se second

using namespace std;
typedef long long ll;
typedef pair<ll, ll> pii;

int N;
ll A, B, MOD;
set<pii> s1;

ll gcdf(ll a, ll b){
    return (b == 0 ? a : gcdf(b, a%b));
}

void upd(ll l, ll r){
    auto it = s1.upper_bound({l, LLONG_MAX});
    vector<pii> rm;
    if(it != s1.begin()){
        it--;
        if(it -> second >= r){
            return;
        }
        if(it -> second >= l){
            l = it -> first;
            rm.push_back(*it);
        }
        it++;
    }
    for(; it != s1.end(); it++){
        if(it -> first > r) break;
        l = min(l, it -> first);
        r = max(r, it -> second);
        rm.push_back(*it);
    }
    for(pii i : rm){
        s1.erase(i);
    }
    s1.insert({l, r});
}

int32_t main(){
    ios::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> N >> A >> B;
    __int128 mp = A / gcdf(A, B+1) * B;
    MOD = (mp > 1e18 ? 1e18+1 : (ll)mp);
    for(int i = 0; i < N; i++){
        ll l, r; cin >> l >> r;
        l %= MOD, r %= MOD;
        if(l > r){
            upd(l, MOD-1);
            upd(0, r);
        }else{
            upd(l, r);
        }
    }
    ll ans = 0;
    for(pii i : s1){
        ans += i.se - i.fi + 1;
    }
    cout << ans << endl;
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	7 ms	1004 KB	Output is correct
3	Correct	7 ms	1004 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct
16	Correct	7 ms	1260 KB	Output is correct
17	Correct	78 ms	10348 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct

Subtask #2
0 / 5.0

#	Verdict	Memory	Grader output
1	Correct	364 KB	Output is correct
2	Incorrect	364 KB	Output isn't correct
3	Halted	0 KB	-

Subtask #3
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	304 ms	364 KB	Output is correct

Subtask #4
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	804 ms	63028 KB	Output is correct
3	Correct	778 ms	62960 KB	Output is correct
4	Correct	894 ms	100352 KB	Output is correct

Subtask #5
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	804 ms	63028 KB	Output is correct
3	Correct	778 ms	62960 KB	Output is correct
4	Correct	894 ms	100352 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	795 ms	100332 KB	Output is correct
7	Correct	828 ms	100204 KB	Output is correct
8	Correct	782 ms	100272 KB	Output is correct
9	Correct	867 ms	100460 KB	Output is correct

Subtask #6
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	804 ms	63028 KB	Output is correct
3	Correct	778 ms	62960 KB	Output is correct
4	Correct	894 ms	100352 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	69 ms	10348 KB	Output is correct
7	Correct	68 ms	10348 KB	Output is correct
8	Correct	75 ms	10496 KB	Output is correct
9	Correct	79 ms	10348 KB	Output is correct
10	Correct	76 ms	10348 KB	Output is correct
11	Correct	71 ms	10348 KB	Output is correct
12	Correct	79 ms	10348 KB	Output is correct
13	Correct	105 ms	10348 KB	Output is correct
14	Correct	73 ms	10220 KB	Output is correct
15	Correct	83 ms	10348 KB	Output is correct
16	Correct	85 ms	10348 KB	Output is correct
17	Correct	80 ms	10452 KB	Output is correct
18	Correct	777 ms	100332 KB	Output is correct
19	Correct	818 ms	100544 KB	Output is correct
20	Correct	835 ms	100424 KB	Output is correct
21	Correct	73 ms	10348 KB	Output is correct
22	Correct	85 ms	10476 KB	Output is correct
23	Correct	132 ms	12908 KB	Output is correct

Subtask #7
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	78 ms	6508 KB	Output is correct
3	Correct	79 ms	6636 KB	Output is correct
4	Correct	816 ms	63084 KB	Output is correct
5	Correct	79 ms	6636 KB	Output is correct
6	Correct	79 ms	6636 KB	Output is correct
7	Correct	79 ms	6636 KB	Output is correct
8	Correct	81 ms	6636 KB	Output is correct
9	Correct	77 ms	6636 KB	Output is correct
10	Correct	71 ms	6636 KB	Output is correct
11	Correct	73 ms	6636 KB	Output is correct
12	Correct	76 ms	6636 KB	Output is correct
13	Correct	80 ms	6636 KB	Output is correct
14	Correct	886 ms	63080 KB	Output is correct
15	Correct	70 ms	5996 KB	Output is correct
16	Correct	784 ms	100204 KB	Output is correct
17	Correct	785 ms	100332 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct

Subtask #8
0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	7 ms	1004 KB	Output is correct
3	Correct	7 ms	1004 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct
16	Correct	7 ms	1260 KB	Output is correct
17	Correct	78 ms	10348 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct
19	Correct	0 ms	364 KB	Output is correct
20	Incorrect	0 ms	364 KB	Output isn't correct
21	Halted	0 ms	0 KB	-

Submission #359369

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