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Submission #419434

# Submission time Handle Problem Language Result Execution time Memory
419434 2021-06-07T06:16:05 Z alireza_kaviani Strange Device (APIO19_strange_device) C++11
100 / 100
 666 ms 69760 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<ll, ll> pll;
typedef pair<int, int> pii;

#define all(x)						(x).begin(),(x).end()
#define X							first
#define Y							second
#define sep							' '
#define endl						'\n'
#define SZ(x)						ll(x.size())

const ll MAXN = 1e6 + 10;
const ll LOG = 22;
const ll INF = 2e18;
const ll MOD = 1e9 + 7; //998244353; //1e9 + 9;

ll n , A , B , sum , ans , L[MAXN] , R[MAXN];
vector<pll> vec;

int main() {
    ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);

	cin >> n >> A >> B;
	A /= __gcd(A , B + 1);
	for(int i = 0 ; i < n ; i++){
		cin >> L[i] >> R[i];
		sum += R[i] - L[i] + 1;
	}
	if(INF / A <= B)	return cout << sum << endl , 0;
	A *= B; //cout << A << endl;
	for(int i = 0 ; i < n ; i++){
		if(R[i] - L[i] + 1 >= A)	return cout << A << endl , 0;
		L[i] %= A; R[i] %= A;
		if(L[i] <= R[i])	vec.push_back({L[i] , R[i]});
		else{
			vec.push_back({0 , R[i]});
			vec.push_back({L[i] , A - 1});
		}
	}
	sort(all(vec));
	ll l = 0 , r = -1;
	for(pll i : vec){
		if(r < i.X){
			ans += r - l + 1;
			l = INF , r = -1;
		}
		l = min(l , i.X);
		r = max(r , i.Y);
	}
	cout << ans + r - l + 1 << endl;

    return 0;
}
/*

*/

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 6 ms 1256 KB Output is correct
3 Correct 6 ms 1228 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 324 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 1 ms 328 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 5 ms 1256 KB Output is correct
17 Correct 55 ms 7748 KB Output is correct
18 Correct 0 ms 332 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 0 ms 204 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 416 ms 57652 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 527 ms 69668 KB Output is correct
3 Correct 522 ms 69728 KB Output is correct
4 Correct 498 ms 69616 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 527 ms 69668 KB Output is correct
3 Correct 522 ms 69728 KB Output is correct
4 Correct 498 ms 69616 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 519 ms 69632 KB Output is correct
7 Correct 516 ms 69688 KB Output is correct
8 Correct 533 ms 69676 KB Output is correct
9 Correct 566 ms 69632 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 527 ms 69668 KB Output is correct
3 Correct 522 ms 69728 KB Output is correct
4 Correct 498 ms 69616 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 49 ms 7716 KB Output is correct
7 Correct 58 ms 7744 KB Output is correct
8 Correct 50 ms 7700 KB Output is correct
9 Correct 50 ms 7724 KB Output is correct
10 Correct 52 ms 7768 KB Output is correct
11 Correct 54 ms 7680 KB Output is correct
12 Correct 52 ms 7784 KB Output is correct
13 Correct 55 ms 7844 KB Output is correct
14 Correct 49 ms 7720 KB Output is correct
15 Correct 55 ms 7800 KB Output is correct
16 Correct 53 ms 7744 KB Output is correct
17 Correct 50 ms 7712 KB Output is correct
18 Correct 666 ms 69760 KB Output is correct
19 Correct 538 ms 69684 KB Output is correct
20 Correct 582 ms 69700 KB Output is correct
21 Correct 55 ms 7764 KB Output is correct
22 Correct 47 ms 7744 KB Output is correct
23 Correct 156 ms 26576 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 60 ms 7732 KB Output is correct
3 Correct 56 ms 7704 KB Output is correct
4 Correct 597 ms 69572 KB Output is correct
5 Correct 56 ms 7752 KB Output is correct
6 Correct 54 ms 7712 KB Output is correct
7 Correct 55 ms 7784 KB Output is correct
8 Correct 54 ms 7748 KB Output is correct
9 Correct 53 ms 7744 KB Output is correct
10 Correct 63 ms 7860 KB Output is correct
11 Correct 57 ms 7748 KB Output is correct
12 Correct 48 ms 7716 KB Output is correct
13 Correct 56 ms 7712 KB Output is correct
14 Correct 581 ms 69660 KB Output is correct
15 Correct 68 ms 7756 KB Output is correct
16 Correct 548 ms 69568 KB Output is correct
17 Correct 536 ms 69348 KB Output is correct
18 Correct 1 ms 332 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 6 ms 1256 KB Output is correct
3 Correct 6 ms 1228 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 324 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 1 ms 328 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 5 ms 1256 KB Output is correct
17 Correct 55 ms 7748 KB Output is correct
18 Correct 0 ms 332 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 0 ms 204 KB Output is correct
24 Correct 1 ms 320 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 416 ms 57652 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 527 ms 69668 KB Output is correct
31 Correct 522 ms 69728 KB Output is correct
32 Correct 498 ms 69616 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 519 ms 69632 KB Output is correct
35 Correct 516 ms 69688 KB Output is correct
36 Correct 533 ms 69676 KB Output is correct
37 Correct 566 ms 69632 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 49 ms 7716 KB Output is correct
40 Correct 58 ms 7744 KB Output is correct
41 Correct 50 ms 7700 KB Output is correct
42 Correct 50 ms 7724 KB Output is correct
43 Correct 52 ms 7768 KB Output is correct
44 Correct 54 ms 7680 KB Output is correct
45 Correct 52 ms 7784 KB Output is correct
46 Correct 55 ms 7844 KB Output is correct
47 Correct 49 ms 7720 KB Output is correct
48 Correct 55 ms 7800 KB Output is correct
49 Correct 53 ms 7744 KB Output is correct
50 Correct 50 ms 7712 KB Output is correct
51 Correct 666 ms 69760 KB Output is correct
52 Correct 538 ms 69684 KB Output is correct
53 Correct 582 ms 69700 KB Output is correct
54 Correct 55 ms 7764 KB Output is correct
55 Correct 47 ms 7744 KB Output is correct
56 Correct 156 ms 26576 KB Output is correct
57 Correct 1 ms 332 KB Output is correct
58 Correct 60 ms 7732 KB Output is correct
59 Correct 56 ms 7704 KB Output is correct
60 Correct 597 ms 69572 KB Output is correct
61 Correct 56 ms 7752 KB Output is correct
62 Correct 54 ms 7712 KB Output is correct
63 Correct 55 ms 7784 KB Output is correct
64 Correct 54 ms 7748 KB Output is correct
65 Correct 53 ms 7744 KB Output is correct
66 Correct 63 ms 7860 KB Output is correct
67 Correct 57 ms 7748 KB Output is correct
68 Correct 48 ms 7716 KB Output is correct
69 Correct 56 ms 7712 KB Output is correct
70 Correct 581 ms 69660 KB Output is correct
71 Correct 68 ms 7756 KB Output is correct
72 Correct 548 ms 69568 KB Output is correct
73 Correct 536 ms 69348 KB Output is correct
74 Correct 1 ms 332 KB Output is correct
75 Correct 1 ms 332 KB Output is correct
76 Correct 1 ms 332 KB Output is correct
77 Correct 1 ms 204 KB Output is correct
78 Correct 1 ms 332 KB Output is correct
79 Correct 6 ms 1228 KB Output is correct
80 Correct 626 ms 68756 KB Output is correct
81 Correct 615 ms 68504 KB Output is correct
82 Correct 599 ms 68496 KB Output is correct
83 Correct 580 ms 68808 KB Output is correct
84 Correct 583 ms 69056 KB Output is correct
85 Correct 630 ms 68360 KB Output is correct
86 Correct 179 ms 26448 KB Output is correct
87 Correct 1 ms 332 KB Output is correct