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Submission #333139

# Submission time Handle Problem Language Result Execution time Memory
333139 2020-12-04T18:26:01 Z qwe854896 Strange Device (APIO19_strange_device) C++14
100 / 100
 871 ms 83264 KB 
#include<bits/stdc++.h>
#define endl '\n'
#define int long long
#define X first
#define Y second
using namespace std;

map <int, int> m;

signed main()
{
	ios::sync_with_stdio(0);
	cin.tie(0);
	int n, A, B;
	cin >> n >> A >> B;
	int ans = 0, MOD = log10(A) - log10(__gcd(A, B+1)) + log10(B) > 18 ? (long long)(1e18+1) : A / __gcd(A, B+1) * B;
	while (n--) {
		int l, r;
		cin >> l >> r;
		int L = l % MOD, R = r % MOD;
		if (r - l >= MOD) ans = MOD;
		else if (L < R) m[L]++, m[R+1]--;
		else if (L > R) m[L]++, m[MOD]--, m[0]++, m[R+1]--;
		else if (l == r) m[L]++, m[L+1]--;
		else ans = MOD;
	}
	int sum = 0, f = 1, l;
	if (ans != MOD) {
		for (auto seg:m) {
			//cout << seg.X << ' ' << seg.Y << endl;
			sum += seg.Y;
			if (sum and f) l = seg.X, f = 0;
			else if (!sum) ans += seg.X - l, f = 1;
		}
	}
	cout << ans << endl;
	return 0;
}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:33:32: warning: 'l' may be used uninitialized in this function [-Wmaybe-uninitialized]
   33 |    else if (!sum) ans += seg.X - l, f = 1;
      |                          ~~~~~~^~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 7 ms 1388 KB Output is correct
3 Correct 7 ms 1388 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 8 ms 1388 KB Output is correct
17 Correct 74 ms 8684 KB Output is correct
18 Correct 1 ms 364 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 2 ms 492 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 300 ms 2924 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 620 KB Output is correct
2 Correct 743 ms 63132 KB Output is correct
3 Correct 747 ms 65536 KB Output is correct
4 Correct 790 ms 65516 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 620 KB Output is correct
2 Correct 743 ms 63132 KB Output is correct
3 Correct 747 ms 65536 KB Output is correct
4 Correct 790 ms 65516 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 752 ms 65516 KB Output is correct
7 Correct 757 ms 65516 KB Output is correct
8 Correct 736 ms 65516 KB Output is correct
9 Correct 820 ms 65748 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 620 KB Output is correct
2 Correct 743 ms 63132 KB Output is correct
3 Correct 747 ms 65536 KB Output is correct
4 Correct 790 ms 65516 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 74 ms 9196 KB Output is correct
7 Correct 67 ms 9196 KB Output is correct
8 Correct 69 ms 9196 KB Output is correct
9 Correct 73 ms 9196 KB Output is correct
10 Correct 68 ms 9196 KB Output is correct
11 Correct 64 ms 9324 KB Output is correct
12 Correct 75 ms 9196 KB Output is correct
13 Correct 74 ms 9196 KB Output is correct
14 Correct 67 ms 9196 KB Output is correct
15 Correct 75 ms 9196 KB Output is correct
16 Correct 76 ms 9196 KB Output is correct
17 Correct 69 ms 9196 KB Output is correct
18 Correct 731 ms 65516 KB Output is correct
19 Correct 775 ms 65628 KB Output is correct
20 Correct 832 ms 65644 KB Output is correct
21 Correct 67 ms 8940 KB Output is correct
22 Correct 72 ms 8940 KB Output is correct
23 Correct 126 ms 2700 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 78 ms 8684 KB Output is correct
3 Correct 76 ms 8556 KB Output is correct
4 Correct 791 ms 63188 KB Output is correct
5 Correct 73 ms 7916 KB Output is correct
6 Correct 76 ms 7916 KB Output is correct
7 Correct 73 ms 7916 KB Output is correct
8 Correct 76 ms 7916 KB Output is correct
9 Correct 72 ms 7916 KB Output is correct
10 Correct 85 ms 8064 KB Output is correct
11 Correct 69 ms 7916 KB Output is correct
12 Correct 76 ms 7916 KB Output is correct
13 Correct 75 ms 8044 KB Output is correct
14 Correct 819 ms 63340 KB Output is correct
15 Correct 65 ms 6892 KB Output is correct
16 Correct 733 ms 63116 KB Output is correct
17 Correct 734 ms 62956 KB Output is correct
18 Correct 1 ms 364 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 7 ms 1388 KB Output is correct
3 Correct 7 ms 1388 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 8 ms 1388 KB Output is correct
17 Correct 74 ms 8684 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 0 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 2 ms 492 KB Output is correct
26 Correct 1 ms 492 KB Output is correct
27 Correct 1 ms 492 KB Output is correct
28 Correct 300 ms 2924 KB Output is correct
29 Correct 1 ms 620 KB Output is correct
30 Correct 743 ms 63132 KB Output is correct
31 Correct 747 ms 65536 KB Output is correct
32 Correct 790 ms 65516 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 752 ms 65516 KB Output is correct
35 Correct 757 ms 65516 KB Output is correct
36 Correct 736 ms 65516 KB Output is correct
37 Correct 820 ms 65748 KB Output is correct
38 Correct 1 ms 364 KB Output is correct
39 Correct 74 ms 9196 KB Output is correct
40 Correct 67 ms 9196 KB Output is correct
41 Correct 69 ms 9196 KB Output is correct
42 Correct 73 ms 9196 KB Output is correct
43 Correct 68 ms 9196 KB Output is correct
44 Correct 64 ms 9324 KB Output is correct
45 Correct 75 ms 9196 KB Output is correct
46 Correct 74 ms 9196 KB Output is correct
47 Correct 67 ms 9196 KB Output is correct
48 Correct 75 ms 9196 KB Output is correct
49 Correct 76 ms 9196 KB Output is correct
50 Correct 69 ms 9196 KB Output is correct
51 Correct 731 ms 65516 KB Output is correct
52 Correct 775 ms 65628 KB Output is correct
53 Correct 832 ms 65644 KB Output is correct
54 Correct 67 ms 8940 KB Output is correct
55 Correct 72 ms 8940 KB Output is correct
56 Correct 126 ms 2700 KB Output is correct
57 Correct 1 ms 364 KB Output is correct
58 Correct 78 ms 8684 KB Output is correct
59 Correct 76 ms 8556 KB Output is correct
60 Correct 791 ms 63188 KB Output is correct
61 Correct 73 ms 7916 KB Output is correct
62 Correct 76 ms 7916 KB Output is correct
63 Correct 73 ms 7916 KB Output is correct
64 Correct 76 ms 7916 KB Output is correct
65 Correct 72 ms 7916 KB Output is correct
66 Correct 85 ms 8064 KB Output is correct
67 Correct 69 ms 7916 KB Output is correct
68 Correct 76 ms 7916 KB Output is correct
69 Correct 75 ms 8044 KB Output is correct
70 Correct 819 ms 63340 KB Output is correct
71 Correct 65 ms 6892 KB Output is correct
72 Correct 733 ms 63116 KB Output is correct
73 Correct 734 ms 62956 KB Output is correct
74 Correct 1 ms 364 KB Output is correct
75 Correct 1 ms 364 KB Output is correct
76 Correct 1 ms 364 KB Output is correct
77 Correct 1 ms 364 KB Output is correct
78 Correct 1 ms 364 KB Output is correct
79 Correct 7 ms 1388 KB Output is correct
80 Correct 799 ms 73964 KB Output is correct
81 Correct 807 ms 72300 KB Output is correct
82 Correct 811 ms 71532 KB Output is correct
83 Correct 839 ms 82028 KB Output is correct
84 Correct 871 ms 80624 KB Output is correct
85 Correct 794 ms 83264 KB Output is correct
86 Correct 133 ms 12924 KB Output is correct
87 Correct 1 ms 364 KB Output is correct