oj.uz

Submission #447193

# Submission time Handle Problem Language Result Execution time Memory
447193 2021-07-25T05:22:12 Z Ya_Ali Strange Device (APIO19_strange_device) C++17
15 / 100
 629 ms 17040 KB 
/* ** *** In the name of God *** ** */
// Only Haider is Amir al-Momenin
#include <bits/stdc++.h>
using namespace std;
typedef unsigned long long ll;
const ll maxn = 1e5 + 10;
const ll mod = 1e9 + 7;
const ll inf = 1e18 + 1;
// #define endl '\n'
int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);
 
	ll n, A, B;
	cin >> n >> A >> B;
	ll x = 1ll * A / __gcd(A, B + 1);
	if (x <= inf / B) x *= B;
	else x = inf;
	vector<pair<ll, ll>> b;
	while (n--) {
		ll l, r;
		cin >> l >> r;
		// l--, r--;
		if (r - l + 1 >= x) return cout << x, 0;
		l %= x, r %= x;
		if (r >= l) b.push_back({l, r});
		else b.push_back({l, x - 1}), b.push_back({0, r});
	}
	sort(b.begin(), b.end());
	ll p = 0, ans = x;
	// cout << x  << endl;
	for (auto i : b) {
		ll l = i.first, r = i.second;
		// cout << l << ' ' << r << endl;
		if (l > p) ans -= (l - p);
		p = r + 1;
	}
	ans -= (x - p);
	cout << ans;
 
	return 0;
}
/*
		  _ _ _ _                  _ _ _ _                _ _ _ _
		/      / \                /     / |              /     / |
	       /``````\   \              |`````|  |             |`````|  |
	      /        \   \             |     |  |             |     |  |
	     /          \   \            |     |  |             |     |  |
	    /     /\     \   \           |     |  |             |     |  |
	   /     / /\     \   \          |     |  |             |     |  |
	  /     / /  \     \   \         |     |  |             |     |  |
	 /     / /_ _ \     \   \        |     |  |             |     |  |
	/     /_ _ _ _ \     \   \       |     |  |             |     |  |
       /                      \   \      |     |  |_ _ _ _      |     |  |
      /      _ _ _ _ _ _ _     \   \     |     | /        /|    |     |  |
     /     / /            \     \   \    |     |/_ _ _ _ / |    |     |  |
    /     / /              \     \  /    |               | /    |     | /
   /_ _ _/_/                \_ _ _\/     |_ _ _ _ _ _ _ _|/     |_ _ _|/
*/

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Incorrect 5 ms 592 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct

Subtask #3
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Incorrect 1 ms 332 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 487 ms 16840 KB Output is correct
3 Correct 459 ms 16912 KB Output is correct
4 Correct 442 ms 16804 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 487 ms 16840 KB Output is correct
3 Correct 459 ms 16912 KB Output is correct
4 Correct 442 ms 16804 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 484 ms 16840 KB Output is correct
7 Correct 459 ms 16788 KB Output is correct
8 Correct 466 ms 16892 KB Output is correct
9 Correct 545 ms 17040 KB Output is correct

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 487 ms 16840 KB Output is correct
3 Correct 459 ms 16912 KB Output is correct
4 Correct 442 ms 16804 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 45 ms 2508 KB Output is correct
7 Correct 47 ms 2460 KB Output is correct
8 Correct 55 ms 2496 KB Output is correct
9 Correct 56 ms 2496 KB Output is correct
10 Correct 49 ms 2576 KB Output is correct
11 Correct 46 ms 2464 KB Output is correct
12 Correct 43 ms 2448 KB Output is correct
13 Correct 47 ms 2508 KB Output is correct
14 Correct 45 ms 2404 KB Output is correct
15 Incorrect 58 ms 2476 KB Output isn't correct
16 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 49 ms 2412 KB Output is correct
3 Correct 48 ms 2504 KB Output is correct
4 Correct 629 ms 16828 KB Output is correct
5 Correct 51 ms 2368 KB Output is correct
6 Correct 47 ms 2428 KB Output is correct
7 Correct 60 ms 2492 KB Output is correct
8 Correct 49 ms 2412 KB Output is correct
9 Correct 48 ms 2504 KB Output is correct
10 Correct 48 ms 2480 KB Output is correct
11 Correct 48 ms 2492 KB Output is correct
12 Correct 45 ms 2492 KB Output is correct
13 Correct 50 ms 2468 KB Output is correct
14 Incorrect 550 ms 16748 KB Output isn't correct
15 Halted 0 ms 0 KB -

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Incorrect 5 ms 592 KB Output isn't correct
3 Halted 0 ms 0 KB -