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)
# |
결과 |
실행 시간 |
메모리 |
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 |
# |
결과 |
실행 시간 |
메모리 |
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 |
# |
결과 |
실행 시간 |
메모리 |
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 |
# |
결과 |
실행 시간 |
메모리 |
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 |
# |
결과 |
실행 시간 |
메모리 |
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 |
# |
결과 |
실행 시간 |
메모리 |
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 |
# |
결과 |
실행 시간 |
메모리 |
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 |
# |
결과 |
실행 시간 |
메모리 |
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 |