#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define int ll
#define ld long double
#define pii pair<int, int>
#define f first
#define s second
#define boost() cin.tie(0), cin.sync_with_stdio(0)
const int MN = 1000005;
int n;
pii a[MN * 2];
int32_t main() {
boost();
cin >> n;
for (int i = 0; i < n; i++) cin >> a[i].f >> a[i].s;
for (int t = 0; t < 32; t++) { //wtf???
for (int i = 0; i < n; i++) {
if (a[i].s < a[i].f) {
int d = (a[i].f - a[i].s + 1) / 2;
if (a[i].f < d * 2) continue;
a[i].f -= d * 2;
a[(i + 1) % n].f += d;
}
}
}
for (int i = 0; i < MN * 2; i++) if (a[i].f != a[i].s) return 0 * printf("No\n");
printf("Yes\n");
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
5 ms |
340 KB |
Output is correct |
3 |
Correct |
6 ms |
340 KB |
Output is correct |
4 |
Correct |
6 ms |
340 KB |
Output is correct |
5 |
Correct |
6 ms |
380 KB |
Output is correct |
6 |
Correct |
5 ms |
340 KB |
Output is correct |
7 |
Correct |
6 ms |
372 KB |
Output is correct |
8 |
Correct |
6 ms |
340 KB |
Output is correct |
9 |
Correct |
5 ms |
368 KB |
Output is correct |
10 |
Correct |
5 ms |
340 KB |
Output is correct |
11 |
Correct |
5 ms |
340 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
0 ms |
212 KB |
Output is correct |
18 |
Correct |
5 ms |
384 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
0 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
212 KB |
Output is correct |
22 |
Correct |
1 ms |
212 KB |
Output is correct |
23 |
Correct |
1 ms |
212 KB |
Output is correct |
24 |
Correct |
5 ms |
384 KB |
Output is correct |
25 |
Correct |
1 ms |
212 KB |
Output is correct |
26 |
Correct |
1 ms |
212 KB |
Output is correct |
27 |
Correct |
1 ms |
336 KB |
Output is correct |
28 |
Correct |
5 ms |
380 KB |
Output is correct |
29 |
Correct |
5 ms |
340 KB |
Output is correct |
30 |
Correct |
1 ms |
332 KB |
Output is correct |
31 |
Correct |
1 ms |
212 KB |
Output is correct |
32 |
Correct |
7 ms |
340 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
5 ms |
340 KB |
Output is correct |
3 |
Correct |
6 ms |
340 KB |
Output is correct |
4 |
Correct |
6 ms |
340 KB |
Output is correct |
5 |
Correct |
6 ms |
380 KB |
Output is correct |
6 |
Correct |
5 ms |
340 KB |
Output is correct |
7 |
Correct |
6 ms |
372 KB |
Output is correct |
8 |
Correct |
6 ms |
340 KB |
Output is correct |
9 |
Correct |
5 ms |
368 KB |
Output is correct |
10 |
Correct |
5 ms |
340 KB |
Output is correct |
11 |
Correct |
5 ms |
340 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
0 ms |
212 KB |
Output is correct |
18 |
Correct |
5 ms |
384 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
0 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
212 KB |
Output is correct |
22 |
Correct |
1 ms |
212 KB |
Output is correct |
23 |
Correct |
1 ms |
212 KB |
Output is correct |
24 |
Correct |
5 ms |
384 KB |
Output is correct |
25 |
Correct |
1 ms |
212 KB |
Output is correct |
26 |
Correct |
1 ms |
212 KB |
Output is correct |
27 |
Correct |
1 ms |
336 KB |
Output is correct |
28 |
Correct |
5 ms |
380 KB |
Output is correct |
29 |
Correct |
5 ms |
340 KB |
Output is correct |
30 |
Correct |
1 ms |
332 KB |
Output is correct |
31 |
Correct |
1 ms |
212 KB |
Output is correct |
32 |
Correct |
7 ms |
340 KB |
Output is correct |
33 |
Correct |
1 ms |
360 KB |
Output is correct |
34 |
Correct |
6 ms |
340 KB |
Output is correct |
35 |
Correct |
6 ms |
340 KB |
Output is correct |
36 |
Correct |
5 ms |
340 KB |
Output is correct |
37 |
Correct |
7 ms |
340 KB |
Output is correct |
38 |
Correct |
6 ms |
328 KB |
Output is correct |
39 |
Correct |
5 ms |
340 KB |
Output is correct |
40 |
Correct |
5 ms |
340 KB |
Output is correct |
41 |
Correct |
7 ms |
328 KB |
Output is correct |
42 |
Correct |
0 ms |
212 KB |
Output is correct |
43 |
Correct |
1 ms |
212 KB |
Output is correct |
44 |
Correct |
1 ms |
212 KB |
Output is correct |
45 |
Correct |
1 ms |
212 KB |
Output is correct |
46 |
Correct |
0 ms |
212 KB |
Output is correct |
47 |
Correct |
1 ms |
212 KB |
Output is correct |
48 |
Correct |
1 ms |
340 KB |
Output is correct |
49 |
Correct |
6 ms |
340 KB |
Output is correct |
50 |
Correct |
0 ms |
212 KB |
Output is correct |
51 |
Correct |
1 ms |
340 KB |
Output is correct |
52 |
Correct |
0 ms |
212 KB |
Output is correct |
53 |
Correct |
0 ms |
212 KB |
Output is correct |
54 |
Correct |
5 ms |
332 KB |
Output is correct |
55 |
Correct |
1 ms |
340 KB |
Output is correct |
56 |
Correct |
1 ms |
212 KB |
Output is correct |
57 |
Correct |
1 ms |
212 KB |
Output is correct |
58 |
Correct |
5 ms |
340 KB |
Output is correct |
59 |
Correct |
5 ms |
384 KB |
Output is correct |
60 |
Correct |
0 ms |
212 KB |
Output is correct |
61 |
Correct |
1 ms |
328 KB |
Output is correct |
62 |
Correct |
6 ms |
340 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
5 ms |
340 KB |
Output is correct |
3 |
Correct |
6 ms |
340 KB |
Output is correct |
4 |
Correct |
6 ms |
340 KB |
Output is correct |
5 |
Correct |
6 ms |
380 KB |
Output is correct |
6 |
Correct |
5 ms |
340 KB |
Output is correct |
7 |
Correct |
6 ms |
372 KB |
Output is correct |
8 |
Correct |
6 ms |
340 KB |
Output is correct |
9 |
Correct |
5 ms |
368 KB |
Output is correct |
10 |
Correct |
5 ms |
340 KB |
Output is correct |
11 |
Correct |
5 ms |
340 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
0 ms |
212 KB |
Output is correct |
18 |
Correct |
5 ms |
384 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
0 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
212 KB |
Output is correct |
22 |
Correct |
1 ms |
212 KB |
Output is correct |
23 |
Correct |
1 ms |
212 KB |
Output is correct |
24 |
Correct |
5 ms |
384 KB |
Output is correct |
25 |
Correct |
1 ms |
212 KB |
Output is correct |
26 |
Correct |
1 ms |
212 KB |
Output is correct |
27 |
Correct |
1 ms |
336 KB |
Output is correct |
28 |
Correct |
5 ms |
380 KB |
Output is correct |
29 |
Correct |
5 ms |
340 KB |
Output is correct |
30 |
Correct |
1 ms |
332 KB |
Output is correct |
31 |
Correct |
1 ms |
212 KB |
Output is correct |
32 |
Correct |
7 ms |
340 KB |
Output is correct |
33 |
Correct |
1 ms |
360 KB |
Output is correct |
34 |
Correct |
6 ms |
340 KB |
Output is correct |
35 |
Correct |
6 ms |
340 KB |
Output is correct |
36 |
Correct |
5 ms |
340 KB |
Output is correct |
37 |
Correct |
7 ms |
340 KB |
Output is correct |
38 |
Correct |
6 ms |
328 KB |
Output is correct |
39 |
Correct |
5 ms |
340 KB |
Output is correct |
40 |
Correct |
5 ms |
340 KB |
Output is correct |
41 |
Correct |
7 ms |
328 KB |
Output is correct |
42 |
Correct |
0 ms |
212 KB |
Output is correct |
43 |
Correct |
1 ms |
212 KB |
Output is correct |
44 |
Correct |
1 ms |
212 KB |
Output is correct |
45 |
Correct |
1 ms |
212 KB |
Output is correct |
46 |
Correct |
0 ms |
212 KB |
Output is correct |
47 |
Correct |
1 ms |
212 KB |
Output is correct |
48 |
Correct |
1 ms |
340 KB |
Output is correct |
49 |
Correct |
6 ms |
340 KB |
Output is correct |
50 |
Correct |
0 ms |
212 KB |
Output is correct |
51 |
Correct |
1 ms |
340 KB |
Output is correct |
52 |
Correct |
0 ms |
212 KB |
Output is correct |
53 |
Correct |
0 ms |
212 KB |
Output is correct |
54 |
Correct |
5 ms |
332 KB |
Output is correct |
55 |
Correct |
1 ms |
340 KB |
Output is correct |
56 |
Correct |
1 ms |
212 KB |
Output is correct |
57 |
Correct |
1 ms |
212 KB |
Output is correct |
58 |
Correct |
5 ms |
340 KB |
Output is correct |
59 |
Correct |
5 ms |
384 KB |
Output is correct |
60 |
Correct |
0 ms |
212 KB |
Output is correct |
61 |
Correct |
1 ms |
328 KB |
Output is correct |
62 |
Correct |
6 ms |
340 KB |
Output is correct |
63 |
Correct |
246 ms |
35228 KB |
Output is correct |
64 |
Correct |
172 ms |
19812 KB |
Output is correct |
65 |
Correct |
249 ms |
35024 KB |
Output is correct |
66 |
Correct |
149 ms |
19896 KB |
Output is correct |
67 |
Correct |
159 ms |
21216 KB |
Output is correct |
68 |
Correct |
170 ms |
23688 KB |
Output is correct |
69 |
Correct |
243 ms |
35300 KB |
Output is correct |
70 |
Correct |
142 ms |
19884 KB |
Output is correct |
71 |
Correct |
162 ms |
21272 KB |
Output is correct |
72 |
Correct |
171 ms |
23632 KB |
Output is correct |
73 |
Correct |
245 ms |
35372 KB |
Output is correct |
74 |
Correct |
174 ms |
19864 KB |
Output is correct |
75 |
Correct |
149 ms |
21372 KB |
Output is correct |
76 |
Correct |
162 ms |
23624 KB |
Output is correct |
77 |
Correct |
252 ms |
35280 KB |
Output is correct |
78 |
Correct |
314 ms |
27552 KB |
Output is correct |
79 |
Correct |
344 ms |
27608 KB |
Output is correct |
80 |
Correct |
202 ms |
27724 KB |
Output is correct |
81 |
Correct |
195 ms |
27608 KB |
Output is correct |
82 |
Correct |
141 ms |
19884 KB |
Output is correct |
83 |
Correct |
139 ms |
19920 KB |
Output is correct |
84 |
Correct |
131 ms |
19884 KB |
Output is correct |
85 |
Correct |
267 ms |
36560 KB |
Output is correct |
86 |
Correct |
264 ms |
36340 KB |
Output is correct |
87 |
Correct |
254 ms |
28664 KB |
Output is correct |
88 |
Correct |
229 ms |
28696 KB |
Output is correct |