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Submission #654686

# Submission time Handle Problem Language Result Execution time Memory
654686 2022-11-01T08:59:35 Z horiseun Strange Device (APIO19_strange_device) C++11
35 / 100
 644 ms 87908 KB 
#include <iostream>
#include <vector>
#include <set>
#include <tuple>
#include <algorithm>
using namespace std;

#define ll long long
#define f first
#define s second

ll a, b, n, l, r, p, ans, c, lft;
vector<pair<ll, bool>> v;

ll gcd(ll x, ll y) {
    if (y == 0) return x;
    return gcd(y, x % y);
}

int main() {

    ios_base::sync_with_stdio(false);
    cin.tie(0);

    cin >> n >> a >> b;
    p = b * (a / gcd(a, b + 1));
    for (int i = 0; i < n; i++) {
        cin >> l >> r;
        if (r - l >= p) {
            cout << p << "\n";
            return 0;
        }
        if ((l + p - 1) % p > (r + p - 1) % p) {
            v.push_back({1, 0});
            v.push_back({(l + p - 1) % p + 1, 0});
            v.push_back({(r + p - 1) % p + 1, 1});
            v.push_back({p, 1});
        } else {
            v.push_back({(l + p - 1) % p + 1, 0});
            v.push_back({(r + p - 1) % p + 1, 1});
        }
    }
    sort(v.begin(), v.end());

    lft = -1;
    for (pair<ll, bool> i : v) {
        if (!i.s) {
            c++;
            if (lft == -1) lft = i.f;
        } else {
            c--;
            if (c == 0) {
                ans += (i.f - lft + 1);
                lft = -1;
            }
        }
    }
    cout << ans << "\n";

}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 6 ms 1372 KB Output is correct
3 Correct 6 ms 1300 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 316 KB Output is correct
7 Correct 1 ms 316 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 324 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 7 ms 1240 KB Output is correct
17 Correct 71 ms 7356 KB Output is correct
18 Incorrect 1 ms 212 KB Output isn't correct
19 Halted 0 ms 0 KB -

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Incorrect 1 ms 320 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 316 KB Output is correct
2 Correct 2 ms 340 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 544 ms 87908 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 536 ms 35504 KB Output is correct
3 Correct 643 ms 68956 KB Output is correct
4 Correct 544 ms 69036 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 536 ms 35504 KB Output is correct
3 Correct 643 ms 68956 KB Output is correct
4 Correct 544 ms 69036 KB Output is correct
5 Correct 1 ms 320 KB Output is correct
6 Correct 573 ms 68912 KB Output is correct
7 Correct 556 ms 68888 KB Output is correct
8 Correct 580 ms 68844 KB Output is correct
9 Correct 644 ms 68968 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 536 ms 35504 KB Output is correct
3 Correct 643 ms 68956 KB Output is correct
4 Correct 544 ms 69036 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 52 ms 7300 KB Output is correct
7 Correct 50 ms 7236 KB Output is correct
8 Correct 47 ms 7260 KB Output is correct
9 Correct 51 ms 7224 KB Output is correct
10 Correct 49 ms 7228 KB Output is correct
11 Correct 49 ms 7212 KB Output is correct
12 Correct 46 ms 7236 KB Output is correct
13 Correct 57 ms 7220 KB Output is correct
14 Correct 47 ms 7240 KB Output is correct
15 Correct 56 ms 7212 KB Output is correct
16 Correct 54 ms 7284 KB Output is correct
17 Correct 49 ms 7232 KB Output is correct
18 Correct 507 ms 68956 KB Output is correct
19 Correct 476 ms 69044 KB Output is correct
20 Correct 593 ms 69060 KB Output is correct
21 Correct 55 ms 7220 KB Output is correct
22 Correct 44 ms 7216 KB Output is correct
23 Correct 184 ms 43024 KB Output is correct

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 316 KB Output is correct
2 Correct 53 ms 7236 KB Output is correct
3 Correct 57 ms 7236 KB Output is correct
4 Correct 621 ms 69192 KB Output is correct
5 Correct 54 ms 7260 KB Output is correct
6 Correct 52 ms 7300 KB Output is correct
7 Correct 53 ms 7248 KB Output is correct
8 Correct 54 ms 7240 KB Output is correct
9 Correct 52 ms 7296 KB Output is correct
10 Correct 56 ms 7312 KB Output is correct
11 Correct 59 ms 7244 KB Output is correct
12 Correct 60 ms 7384 KB Output is correct
13 Correct 54 ms 7372 KB Output is correct
14 Correct 608 ms 68876 KB Output is correct
15 Correct 55 ms 7220 KB Output is correct
16 Correct 509 ms 68520 KB Output is correct
17 Correct 506 ms 68908 KB Output is correct
18 Incorrect 0 ms 212 KB Output isn't correct
19 Halted 0 ms 0 KB -

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 6 ms 1372 KB Output is correct
3 Correct 6 ms 1300 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 316 KB Output is correct
7 Correct 1 ms 316 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 324 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 7 ms 1240 KB Output is correct
17 Correct 71 ms 7356 KB Output is correct
18 Incorrect 1 ms 212 KB Output isn't correct
19 Halted 0 ms 0 KB -