Submission #217050

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
217050	2020-03-28T18:37:04 Z	sevlll	Strange Device (APIO19_strange_device)	PyPy	100 / 100	3054 ms	188124 KB

strange_device

from sys import stdin


def gcd(x, y):
    if x == 0:
        return y
    if y == 0:
        return x
    if x > y:
        x, y = y, x
    return gcd(y % x, x)



n, a, b = map(int, stdin.readline().split())
pr = []
for i in range(n):
    x, y = map(int, stdin.readline().split())
    pr.append((x, y))
g = gcd(a, b+1)
num = a * b // g
ev = []
ans = 0
for p in pr:
    l = p[0]
    r = p[1]
    if r - l + 1 >= num:
        ans = num
    l %= num
    r %= num
    if r < l:
        ev += [(l, 1), (num, -1), (0, 1), (r+1, -1)]
    else:
        ev += [(l, 1), (r + 1, -1)]
ev.sort()
bal = 0
last = 0
for p in ev:
    x = p[0]
    tp = p[1]
    if bal: ans += x - last
    last = x
    bal += tp
print min(num, ans)

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	26 ms	5080 KB	Output is correct
2	Correct	72 ms	13188 KB	Output is correct
3	Correct	73 ms	9652 KB	Output is correct
4	Correct	26 ms	4960 KB	Output is correct
5	Correct	27 ms	4960 KB	Output is correct
6	Correct	28 ms	4960 KB	Output is correct
7	Correct	27 ms	4960 KB	Output is correct
8	Correct	27 ms	4960 KB	Output is correct
9	Correct	28 ms	4952 KB	Output is correct
10	Correct	26 ms	4960 KB	Output is correct
11	Correct	27 ms	4952 KB	Output is correct
12	Correct	27 ms	4960 KB	Output is correct
13	Correct	27 ms	4960 KB	Output is correct
14	Correct	29 ms	4960 KB	Output is correct
15	Correct	27 ms	4960 KB	Output is correct
16	Correct	71 ms	9608 KB	Output is correct
17	Correct	219 ms	28008 KB	Output is correct
18	Correct	26 ms	4960 KB	Output is correct

Subtask #2
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	28 ms	4960 KB	Output is correct
2	Correct	27 ms	4960 KB	Output is correct
3	Correct	29 ms	4960 KB	Output is correct
4	Correct	27 ms	4960 KB	Output is correct
5	Correct	29 ms	4960 KB	Output is correct

Subtask #3
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	41 ms	4952 KB	Output is correct
2	Correct	60 ms	5208 KB	Output is correct
3	Correct	46 ms	5336 KB	Output is correct
4	Correct	47 ms	5472 KB	Output is correct
5	Correct	3054 ms	188124 KB	Output is correct

Subtask #4
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	28 ms	4928 KB	Output is correct
2	Correct	2019 ms	180248 KB	Output is correct
3	Correct	2020 ms	176804 KB	Output is correct
4	Correct	1978 ms	178312 KB	Output is correct

Subtask #5
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	28 ms	4928 KB	Output is correct
2	Correct	2019 ms	180248 KB	Output is correct
3	Correct	2020 ms	176804 KB	Output is correct
4	Correct	1978 ms	178312 KB	Output is correct
5	Correct	29 ms	4952 KB	Output is correct
6	Correct	1934 ms	173456 KB	Output is correct
7	Correct	1970 ms	180128 KB	Output is correct
8	Correct	1929 ms	175304 KB	Output is correct
9	Correct	1923 ms	172940 KB	Output is correct

Subtask #6
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	28 ms	4928 KB	Output is correct
2	Correct	2019 ms	180248 KB	Output is correct
3	Correct	2020 ms	176804 KB	Output is correct
4	Correct	1978 ms	178312 KB	Output is correct
5	Correct	26 ms	5080 KB	Output is correct
6	Correct	221 ms	29192 KB	Output is correct
7	Correct	216 ms	29192 KB	Output is correct
8	Correct	207 ms	29316 KB	Output is correct
9	Correct	206 ms	29316 KB	Output is correct
10	Correct	226 ms	29316 KB	Output is correct
11	Correct	210 ms	29188 KB	Output is correct
12	Correct	209 ms	29188 KB	Output is correct
13	Correct	212 ms	29192 KB	Output is correct
14	Correct	213 ms	29188 KB	Output is correct
15	Correct	214 ms	29196 KB	Output is correct
16	Correct	213 ms	29188 KB	Output is correct
17	Correct	207 ms	29188 KB	Output is correct
18	Correct	1932 ms	174572 KB	Output is correct
19	Correct	1861 ms	179320 KB	Output is correct
20	Correct	1844 ms	173668 KB	Output is correct
21	Correct	209 ms	29188 KB	Output is correct
22	Correct	222 ms	29316 KB	Output is correct
23	Correct	992 ms	68684 KB	Output is correct

Subtask #7
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	26 ms	4960 KB	Output is correct
2	Correct	212 ms	29188 KB	Output is correct
3	Correct	214 ms	29336 KB	Output is correct
4	Correct	1843 ms	173504 KB	Output is correct
5	Correct	204 ms	29192 KB	Output is correct
6	Correct	204 ms	29192 KB	Output is correct
7	Correct	208 ms	29188 KB	Output is correct
8	Correct	205 ms	29192 KB	Output is correct
9	Correct	206 ms	29188 KB	Output is correct
10	Correct	209 ms	29192 KB	Output is correct
11	Correct	205 ms	29188 KB	Output is correct
12	Correct	213 ms	29188 KB	Output is correct
13	Correct	217 ms	29444 KB	Output is correct
14	Correct	1883 ms	173632 KB	Output is correct
15	Correct	213 ms	29316 KB	Output is correct
16	Correct	1914 ms	175352 KB	Output is correct
17	Correct	1884 ms	175592 KB	Output is correct
18	Correct	26 ms	4960 KB	Output is correct

Subtask #8
30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	26 ms	5080 KB	Output is correct
2	Correct	72 ms	13188 KB	Output is correct
3	Correct	73 ms	9652 KB	Output is correct
4	Correct	26 ms	4960 KB	Output is correct
5	Correct	27 ms	4960 KB	Output is correct
6	Correct	28 ms	4960 KB	Output is correct
7	Correct	27 ms	4960 KB	Output is correct
8	Correct	27 ms	4960 KB	Output is correct
9	Correct	28 ms	4952 KB	Output is correct
10	Correct	26 ms	4960 KB	Output is correct
11	Correct	27 ms	4952 KB	Output is correct
12	Correct	27 ms	4960 KB	Output is correct
13	Correct	27 ms	4960 KB	Output is correct
14	Correct	29 ms	4960 KB	Output is correct
15	Correct	27 ms	4960 KB	Output is correct
16	Correct	71 ms	9608 KB	Output is correct
17	Correct	219 ms	28008 KB	Output is correct
18	Correct	26 ms	4960 KB	Output is correct
19	Correct	28 ms	4960 KB	Output is correct
20	Correct	27 ms	4960 KB	Output is correct
21	Correct	29 ms	4960 KB	Output is correct
22	Correct	27 ms	4960 KB	Output is correct
23	Correct	29 ms	4960 KB	Output is correct
24	Correct	41 ms	4952 KB	Output is correct
25	Correct	60 ms	5208 KB	Output is correct
26	Correct	46 ms	5336 KB	Output is correct
27	Correct	47 ms	5472 KB	Output is correct
28	Correct	3054 ms	188124 KB	Output is correct
29	Correct	28 ms	4928 KB	Output is correct
30	Correct	2019 ms	180248 KB	Output is correct
31	Correct	2020 ms	176804 KB	Output is correct
32	Correct	1978 ms	178312 KB	Output is correct
33	Correct	29 ms	4952 KB	Output is correct
34	Correct	1934 ms	173456 KB	Output is correct
35	Correct	1970 ms	180128 KB	Output is correct
36	Correct	1929 ms	175304 KB	Output is correct
37	Correct	1923 ms	172940 KB	Output is correct
38	Correct	26 ms	5080 KB	Output is correct
39	Correct	221 ms	29192 KB	Output is correct
40	Correct	216 ms	29192 KB	Output is correct
41	Correct	207 ms	29316 KB	Output is correct
42	Correct	206 ms	29316 KB	Output is correct
43	Correct	226 ms	29316 KB	Output is correct
44	Correct	210 ms	29188 KB	Output is correct
45	Correct	209 ms	29188 KB	Output is correct
46	Correct	212 ms	29192 KB	Output is correct
47	Correct	213 ms	29188 KB	Output is correct
48	Correct	214 ms	29196 KB	Output is correct
49	Correct	213 ms	29188 KB	Output is correct
50	Correct	207 ms	29188 KB	Output is correct
51	Correct	1932 ms	174572 KB	Output is correct
52	Correct	1861 ms	179320 KB	Output is correct
53	Correct	1844 ms	173668 KB	Output is correct
54	Correct	209 ms	29188 KB	Output is correct
55	Correct	222 ms	29316 KB	Output is correct
56	Correct	992 ms	68684 KB	Output is correct
57	Correct	26 ms	4960 KB	Output is correct
58	Correct	212 ms	29188 KB	Output is correct
59	Correct	214 ms	29336 KB	Output is correct
60	Correct	1843 ms	173504 KB	Output is correct
61	Correct	204 ms	29192 KB	Output is correct
62	Correct	204 ms	29192 KB	Output is correct
63	Correct	208 ms	29188 KB	Output is correct
64	Correct	205 ms	29192 KB	Output is correct
65	Correct	206 ms	29188 KB	Output is correct
66	Correct	209 ms	29192 KB	Output is correct
67	Correct	205 ms	29188 KB	Output is correct
68	Correct	213 ms	29188 KB	Output is correct
69	Correct	217 ms	29444 KB	Output is correct
70	Correct	1883 ms	173632 KB	Output is correct
71	Correct	213 ms	29316 KB	Output is correct
72	Correct	1914 ms	175352 KB	Output is correct
73	Correct	1884 ms	175592 KB	Output is correct
74	Correct	26 ms	4960 KB	Output is correct
75	Correct	29 ms	4960 KB	Output is correct
76	Correct	28 ms	4960 KB	Output is correct
77	Correct	26 ms	4960 KB	Output is correct
78	Correct	27 ms	5088 KB	Output is correct
79	Correct	70 ms	9916 KB	Output is correct
80	Correct	1857 ms	175464 KB	Output is correct
81	Correct	1852 ms	176232 KB	Output is correct
82	Correct	1857 ms	174916 KB	Output is correct
83	Correct	1829 ms	175200 KB	Output is correct
84	Correct	1831 ms	173732 KB	Output is correct
85	Correct	1837 ms	174068 KB	Output is correct
86	Correct	991 ms	78508 KB	Output is correct
87	Correct	26 ms	4832 KB	Output is correct

Submission #217050

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