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Submission #1044830

# Submission time Handle Problem Language Result Execution time Memory
1044830 2024-08-05T14:02:00 Z vjudge1 Strange Device (APIO19_strange_device) C++17
10 / 100
 410 ms 74692 KB 
#include <bits/stdc++.h>
using namespace std;
 
#define fast ios::sync_with_stdio(0);cin.tie(0);
typedef long long ll;
#define f first
#define s second
#define LOGN 21
const ll MOD = 1e9 + 7;
const ll MAXN = 3e4 + 100;

#define int long long
set<pair<int,int>> st;
void add_seg(int l, int r) {
    st.insert({l, r});
}

signed main() {
    fast
    ll n, A, B, mx = -1;
    cin >> n >> A >> B;

    if (B < A)
        swap(A, B);
    if ((((long long)1e9) * ((long long)1e9) + A - 1LL) / A <= B) {
        int ans = 0;
        for (int i = 0; i < n; i++) {
            int l, r;
            cin >> l >> r;
            add_seg(l, r);
        }

        for (auto u : st) {
            ans += max(0LL, (u.s - max(mx + 1, u.f)) + 1);
            mx = max(mx, u.s);
        }
        cout << ans << "\n";
        return 0;
    }

    A *= B;

    bool control = true;
    for (int i = 0; i < n; i++) {
        int l, r;
        cin >> l >> r;

        if (r - l + 1 >= A) {
            cout << A << "\n";
            control = false;
        }

        int x = l % A;
        int y = r % A;
        if (y < x) {
            add_seg(x, A-1);
            add_seg(0, y);
        } else
            add_seg(x, y);
    }

    if (!control)
        return 0;

    ll ans = 0;
    for (auto u : st) {
        ans += max(0LL, u.s - max(mx + 1, u.f) + 1);
        mx = max(mx, u.s);
    }
    cout << ans << "\n";
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 4 ms 1372 KB Output is correct
3 Correct 3 ms 1372 KB Output is correct
4 Incorrect 0 ms 348 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 124 ms 432 KB Output is correct

Subtask #4
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 342 ms 63052 KB Output is correct
3 Incorrect 400 ms 74576 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 342 ms 63052 KB Output is correct
3 Incorrect 400 ms 74576 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 342 ms 63052 KB Output is correct
3 Incorrect 400 ms 74576 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 39 ms 9016 KB Output is correct
3 Correct 36 ms 8576 KB Output is correct
4 Correct 396 ms 74692 KB Output is correct
5 Correct 37 ms 8272 KB Output is correct
6 Correct 35 ms 8240 KB Output is correct
7 Correct 37 ms 8396 KB Output is correct
8 Correct 35 ms 8276 KB Output is correct
9 Correct 37 ms 8272 KB Output is correct
10 Correct 32 ms 8488 KB Output is correct
11 Correct 32 ms 8276 KB Output is correct
12 Correct 32 ms 8268 KB Output is correct
13 Correct 34 ms 8368 KB Output is correct
14 Correct 410 ms 74428 KB Output is correct
15 Incorrect 34 ms 8364 KB Output isn't correct
16 Halted 0 ms 0 KB -

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 4 ms 1372 KB Output is correct
3 Correct 3 ms 1372 KB Output is correct
4 Incorrect 0 ms 348 KB Output isn't correct
5 Halted 0 ms 0 KB -