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Submission #249017

# Submission time Handle Problem Language Result Execution time Memory
249017 2020-07-14T05:51:49 Z SamAnd Strange Device (APIO19_strange_device) C++17
100 / 100
 2477 ms 69436 KB 
#include <bits/stdc++.h>
using namespace std;
#define m_p make_pair
long long gcd(long long x, long long y)
{
	if (x == 0)
		return y;
	return gcd(y % x, x);
}
long long lca(long long x, long long y)
{
	return x / gcd(x, y) * y;
}

long long n, x, y;

long long t;

vector<pair<long long, int> > v;
void ubd(long long l, long long r)
{
    v.push_back(m_p(l, 1));
    v.push_back(m_p(r + 1, -1));
}

int main()
{
    #ifdef SOMETHING
    freopen("input.txt", "r", stdin);
    #endif // SOMETHING
	cin >> n >> x >> y;
	t = x / gcd(y + 1, x) * y;

	while (n--)
	{
		long long l, r;
		cin >> l >> r;
		if (l / t == r / t)
			ubd(l % t, r % t);
		else if (l / t == r / t - 1)
		{
			ubd(0, r % t);
			ubd(l % t, t - 1);
		}
		else
		{
			ubd(0, t - 1);
		}
	}

	sort(v.begin(), v.end());
    long long ans = 0;
    int p = 0;
    for (int i = 0; i < v.size(); ++i)
    {
        p += v[i].second;
        if (p > 0)
            ans += (v[i + 1].first - v[i].first);
    }
    cout << ans << endl;
	return 0;
}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:54:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < v.size(); ++i)
                     ~~^~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 23 ms 1404 KB Output is correct
3 Correct 22 ms 1404 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 0 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 0 ms 256 KB Output is correct
13 Correct 0 ms 256 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 1 ms 256 KB Output is correct
16 Correct 23 ms 1404 KB Output is correct
17 Correct 233 ms 7268 KB Output is correct
18 Correct 0 ms 256 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 1 ms 384 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 3 ms 384 KB Output is correct
5 Correct 1579 ms 56984 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 2253 ms 69084 KB Output is correct
3 Correct 2288 ms 69172 KB Output is correct
4 Correct 2210 ms 69248 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 2253 ms 69084 KB Output is correct
3 Correct 2288 ms 69172 KB Output is correct
4 Correct 2210 ms 69248 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 2272 ms 69160 KB Output is correct
7 Correct 2245 ms 69196 KB Output is correct
8 Correct 2243 ms 69436 KB Output is correct
9 Correct 2350 ms 69300 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 2253 ms 69084 KB Output is correct
3 Correct 2288 ms 69172 KB Output is correct
4 Correct 2210 ms 69248 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 234 ms 7356 KB Output is correct
7 Correct 227 ms 7408 KB Output is correct
8 Correct 223 ms 7268 KB Output is correct
9 Correct 225 ms 7268 KB Output is correct
10 Correct 224 ms 7268 KB Output is correct
11 Correct 225 ms 7268 KB Output is correct
12 Correct 223 ms 7268 KB Output is correct
13 Correct 228 ms 7488 KB Output is correct
14 Correct 225 ms 7252 KB Output is correct
15 Correct 241 ms 7272 KB Output is correct
16 Correct 242 ms 7412 KB Output is correct
17 Correct 229 ms 7268 KB Output is correct
18 Correct 2261 ms 69196 KB Output is correct
19 Correct 2249 ms 69092 KB Output is correct
20 Correct 2343 ms 69152 KB Output is correct
21 Correct 236 ms 7416 KB Output is correct
22 Correct 214 ms 7272 KB Output is correct
23 Correct 718 ms 26832 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 229 ms 7272 KB Output is correct
3 Correct 233 ms 7324 KB Output is correct
4 Correct 2385 ms 69144 KB Output is correct
5 Correct 228 ms 7388 KB Output is correct
6 Correct 232 ms 7352 KB Output is correct
7 Correct 234 ms 7268 KB Output is correct
8 Correct 233 ms 7268 KB Output is correct
9 Correct 228 ms 7272 KB Output is correct
10 Correct 233 ms 7268 KB Output is correct
11 Correct 231 ms 7268 KB Output is correct
12 Correct 221 ms 7268 KB Output is correct
13 Correct 229 ms 7268 KB Output is correct
14 Correct 2370 ms 69060 KB Output is correct
15 Correct 231 ms 7268 KB Output is correct
16 Correct 2218 ms 69120 KB Output is correct
17 Correct 2237 ms 69152 KB Output is correct
18 Correct 0 ms 256 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 23 ms 1404 KB Output is correct
3 Correct 22 ms 1404 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 0 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 0 ms 256 KB Output is correct
13 Correct 0 ms 256 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 1 ms 256 KB Output is correct
16 Correct 23 ms 1404 KB Output is correct
17 Correct 233 ms 7268 KB Output is correct
18 Correct 0 ms 256 KB Output is correct
19 Correct 0 ms 256 KB Output is correct
20 Correct 1 ms 256 KB Output is correct
21 Correct 0 ms 256 KB Output is correct
22 Correct 0 ms 256 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 0 ms 256 KB Output is correct
25 Correct 3 ms 384 KB Output is correct
26 Correct 3 ms 384 KB Output is correct
27 Correct 3 ms 384 KB Output is correct
28 Correct 1579 ms 56984 KB Output is correct
29 Correct 1 ms 256 KB Output is correct
30 Correct 2253 ms 69084 KB Output is correct
31 Correct 2288 ms 69172 KB Output is correct
32 Correct 2210 ms 69248 KB Output is correct
33 Correct 0 ms 256 KB Output is correct
34 Correct 2272 ms 69160 KB Output is correct
35 Correct 2245 ms 69196 KB Output is correct
36 Correct 2243 ms 69436 KB Output is correct
37 Correct 2350 ms 69300 KB Output is correct
38 Correct 0 ms 256 KB Output is correct
39 Correct 234 ms 7356 KB Output is correct
40 Correct 227 ms 7408 KB Output is correct
41 Correct 223 ms 7268 KB Output is correct
42 Correct 225 ms 7268 KB Output is correct
43 Correct 224 ms 7268 KB Output is correct
44 Correct 225 ms 7268 KB Output is correct
45 Correct 223 ms 7268 KB Output is correct
46 Correct 228 ms 7488 KB Output is correct
47 Correct 225 ms 7252 KB Output is correct
48 Correct 241 ms 7272 KB Output is correct
49 Correct 242 ms 7412 KB Output is correct
50 Correct 229 ms 7268 KB Output is correct
51 Correct 2261 ms 69196 KB Output is correct
52 Correct 2249 ms 69092 KB Output is correct
53 Correct 2343 ms 69152 KB Output is correct
54 Correct 236 ms 7416 KB Output is correct
55 Correct 214 ms 7272 KB Output is correct
56 Correct 718 ms 26832 KB Output is correct
57 Correct 0 ms 256 KB Output is correct
58 Correct 229 ms 7272 KB Output is correct
59 Correct 233 ms 7324 KB Output is correct
60 Correct 2385 ms 69144 KB Output is correct
61 Correct 228 ms 7388 KB Output is correct
62 Correct 232 ms 7352 KB Output is correct
63 Correct 234 ms 7268 KB Output is correct
64 Correct 233 ms 7268 KB Output is correct
65 Correct 228 ms 7272 KB Output is correct
66 Correct 233 ms 7268 KB Output is correct
67 Correct 231 ms 7268 KB Output is correct
68 Correct 221 ms 7268 KB Output is correct
69 Correct 229 ms 7268 KB Output is correct
70 Correct 2370 ms 69060 KB Output is correct
71 Correct 231 ms 7268 KB Output is correct
72 Correct 2218 ms 69120 KB Output is correct
73 Correct 2237 ms 69152 KB Output is correct
74 Correct 0 ms 256 KB Output is correct
75 Correct 0 ms 256 KB Output is correct
76 Correct 0 ms 256 KB Output is correct
77 Correct 0 ms 256 KB Output is correct
78 Correct 0 ms 256 KB Output is correct
79 Correct 23 ms 1396 KB Output is correct
80 Correct 2366 ms 69132 KB Output is correct
81 Correct 2404 ms 69044 KB Output is correct
82 Correct 2344 ms 69276 KB Output is correct
83 Correct 2331 ms 69192 KB Output is correct
84 Correct 2371 ms 68952 KB Output is correct
85 Correct 2477 ms 69092 KB Output is correct
86 Correct 723 ms 26832 KB Output is correct
87 Correct 1 ms 256 KB Output is correct