#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;
#define all(x) (x).begin(),(x).end()
#define X first
#define Y second
#define sep ' '
#define endl '\n'
#define debug(x) cerr << #x << ": " << x << endl;
const ll MAXN = 1e6 + 10;
const ll LIM = 100;
ll A[MAXN], B[MAXN], n;
int main() {
ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
cin >> n;
for (int i = 0; i < n; i++)
cin >> A[i] >> B[i];
for (int t = 0; t < LIM; t++) {
bool flag = true;
for (int i = 0; i < n; i++) {
if (A[i] != B[i]) flag = false;
if (A[i] > B[i]) {
int r = (A[i] - B[i]) / 2;
if (A[i] - 2 * r > max(B[i], 1ll)) r++;
A[i] -= 2 * r;
A[(i + 1) % n] += r;
}
}
if (flag) return cout << "Yes" << endl, 0;
}
cout << "No" << endl;
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
0 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Correct |
0 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
212 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
1 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 |
1 ms |
212 KB |
Output is correct |
| 18 |
Correct |
1 ms |
212 KB |
Output is correct |
| 19 |
Correct |
0 ms |
212 KB |
Output is correct |
| 20 |
Correct |
0 ms |
212 KB |
Output is correct |
| 21 |
Correct |
0 ms |
212 KB |
Output is correct |
| 22 |
Correct |
0 ms |
212 KB |
Output is correct |
| 23 |
Correct |
0 ms |
212 KB |
Output is correct |
| 24 |
Correct |
0 ms |
212 KB |
Output is correct |
| 25 |
Correct |
0 ms |
212 KB |
Output is correct |
| 26 |
Correct |
0 ms |
212 KB |
Output is correct |
| 27 |
Correct |
0 ms |
212 KB |
Output is correct |
| 28 |
Correct |
0 ms |
212 KB |
Output is correct |
| 29 |
Correct |
0 ms |
212 KB |
Output is correct |
| 30 |
Correct |
0 ms |
212 KB |
Output is correct |
| 31 |
Correct |
0 ms |
212 KB |
Output is correct |
| 32 |
Correct |
0 ms |
212 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
0 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Correct |
0 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
212 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
1 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 |
1 ms |
212 KB |
Output is correct |
| 18 |
Correct |
1 ms |
212 KB |
Output is correct |
| 19 |
Correct |
0 ms |
212 KB |
Output is correct |
| 20 |
Correct |
0 ms |
212 KB |
Output is correct |
| 21 |
Correct |
0 ms |
212 KB |
Output is correct |
| 22 |
Correct |
0 ms |
212 KB |
Output is correct |
| 23 |
Correct |
0 ms |
212 KB |
Output is correct |
| 24 |
Correct |
0 ms |
212 KB |
Output is correct |
| 25 |
Correct |
0 ms |
212 KB |
Output is correct |
| 26 |
Correct |
0 ms |
212 KB |
Output is correct |
| 27 |
Correct |
0 ms |
212 KB |
Output is correct |
| 28 |
Correct |
0 ms |
212 KB |
Output is correct |
| 29 |
Correct |
0 ms |
212 KB |
Output is correct |
| 30 |
Correct |
0 ms |
212 KB |
Output is correct |
| 31 |
Correct |
0 ms |
212 KB |
Output is correct |
| 32 |
Correct |
0 ms |
212 KB |
Output is correct |
| 33 |
Correct |
0 ms |
212 KB |
Output is correct |
| 34 |
Correct |
1 ms |
216 KB |
Output is correct |
| 35 |
Correct |
0 ms |
212 KB |
Output is correct |
| 36 |
Correct |
0 ms |
212 KB |
Output is correct |
| 37 |
Correct |
0 ms |
212 KB |
Output is correct |
| 38 |
Correct |
0 ms |
212 KB |
Output is correct |
| 39 |
Correct |
0 ms |
212 KB |
Output is correct |
| 40 |
Correct |
1 ms |
212 KB |
Output is correct |
| 41 |
Correct |
0 ms |
212 KB |
Output is correct |
| 42 |
Correct |
0 ms |
212 KB |
Output is correct |
| 43 |
Correct |
0 ms |
216 KB |
Output is correct |
| 44 |
Correct |
1 ms |
216 KB |
Output is correct |
| 45 |
Correct |
0 ms |
216 KB |
Output is correct |
| 46 |
Correct |
0 ms |
216 KB |
Output is correct |
| 47 |
Correct |
0 ms |
216 KB |
Output is correct |
| 48 |
Correct |
0 ms |
216 KB |
Output is correct |
| 49 |
Correct |
0 ms |
216 KB |
Output is correct |
| 50 |
Correct |
0 ms |
220 KB |
Output is correct |
| 51 |
Correct |
0 ms |
220 KB |
Output is correct |
| 52 |
Correct |
0 ms |
212 KB |
Output is correct |
| 53 |
Correct |
0 ms |
212 KB |
Output is correct |
| 54 |
Correct |
0 ms |
212 KB |
Output is correct |
| 55 |
Correct |
0 ms |
212 KB |
Output is correct |
| 56 |
Correct |
0 ms |
212 KB |
Output is correct |
| 57 |
Correct |
0 ms |
212 KB |
Output is correct |
| 58 |
Correct |
0 ms |
212 KB |
Output is correct |
| 59 |
Correct |
0 ms |
220 KB |
Output is correct |
| 60 |
Correct |
0 ms |
212 KB |
Output is correct |
| 61 |
Correct |
1 ms |
212 KB |
Output is correct |
| 62 |
Correct |
1 ms |
212 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
0 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Correct |
0 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
212 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
1 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 |
1 ms |
212 KB |
Output is correct |
| 18 |
Correct |
1 ms |
212 KB |
Output is correct |
| 19 |
Correct |
0 ms |
212 KB |
Output is correct |
| 20 |
Correct |
0 ms |
212 KB |
Output is correct |
| 21 |
Correct |
0 ms |
212 KB |
Output is correct |
| 22 |
Correct |
0 ms |
212 KB |
Output is correct |
| 23 |
Correct |
0 ms |
212 KB |
Output is correct |
| 24 |
Correct |
0 ms |
212 KB |
Output is correct |
| 25 |
Correct |
0 ms |
212 KB |
Output is correct |
| 26 |
Correct |
0 ms |
212 KB |
Output is correct |
| 27 |
Correct |
0 ms |
212 KB |
Output is correct |
| 28 |
Correct |
0 ms |
212 KB |
Output is correct |
| 29 |
Correct |
0 ms |
212 KB |
Output is correct |
| 30 |
Correct |
0 ms |
212 KB |
Output is correct |
| 31 |
Correct |
0 ms |
212 KB |
Output is correct |
| 32 |
Correct |
0 ms |
212 KB |
Output is correct |
| 33 |
Correct |
0 ms |
212 KB |
Output is correct |
| 34 |
Correct |
1 ms |
216 KB |
Output is correct |
| 35 |
Correct |
0 ms |
212 KB |
Output is correct |
| 36 |
Correct |
0 ms |
212 KB |
Output is correct |
| 37 |
Correct |
0 ms |
212 KB |
Output is correct |
| 38 |
Correct |
0 ms |
212 KB |
Output is correct |
| 39 |
Correct |
0 ms |
212 KB |
Output is correct |
| 40 |
Correct |
1 ms |
212 KB |
Output is correct |
| 41 |
Correct |
0 ms |
212 KB |
Output is correct |
| 42 |
Correct |
0 ms |
212 KB |
Output is correct |
| 43 |
Correct |
0 ms |
216 KB |
Output is correct |
| 44 |
Correct |
1 ms |
216 KB |
Output is correct |
| 45 |
Correct |
0 ms |
216 KB |
Output is correct |
| 46 |
Correct |
0 ms |
216 KB |
Output is correct |
| 47 |
Correct |
0 ms |
216 KB |
Output is correct |
| 48 |
Correct |
0 ms |
216 KB |
Output is correct |
| 49 |
Correct |
0 ms |
216 KB |
Output is correct |
| 50 |
Correct |
0 ms |
220 KB |
Output is correct |
| 51 |
Correct |
0 ms |
220 KB |
Output is correct |
| 52 |
Correct |
0 ms |
212 KB |
Output is correct |
| 53 |
Correct |
0 ms |
212 KB |
Output is correct |
| 54 |
Correct |
0 ms |
212 KB |
Output is correct |
| 55 |
Correct |
0 ms |
212 KB |
Output is correct |
| 56 |
Correct |
0 ms |
212 KB |
Output is correct |
| 57 |
Correct |
0 ms |
212 KB |
Output is correct |
| 58 |
Correct |
0 ms |
212 KB |
Output is correct |
| 59 |
Correct |
0 ms |
220 KB |
Output is correct |
| 60 |
Correct |
0 ms |
212 KB |
Output is correct |
| 61 |
Correct |
1 ms |
212 KB |
Output is correct |
| 62 |
Correct |
1 ms |
212 KB |
Output is correct |
| 63 |
Correct |
484 ms |
15896 KB |
Output is correct |
| 64 |
Correct |
99 ms |
19792 KB |
Output is correct |
| 65 |
Correct |
172 ms |
34832 KB |
Output is correct |
| 66 |
Correct |
102 ms |
19788 KB |
Output is correct |
| 67 |
Correct |
97 ms |
21180 KB |
Output is correct |
| 68 |
Correct |
106 ms |
23560 KB |
Output is correct |
| 69 |
Correct |
168 ms |
35228 KB |
Output is correct |
| 70 |
Correct |
165 ms |
19860 KB |
Output is correct |
| 71 |
Correct |
181 ms |
21252 KB |
Output is correct |
| 72 |
Correct |
181 ms |
23556 KB |
Output is correct |
| 73 |
Correct |
241 ms |
35316 KB |
Output is correct |
| 74 |
Correct |
165 ms |
19868 KB |
Output is correct |
| 75 |
Correct |
174 ms |
21220 KB |
Output is correct |
| 76 |
Correct |
184 ms |
23500 KB |
Output is correct |
| 77 |
Correct |
263 ms |
35304 KB |
Output is correct |
| 78 |
Correct |
571 ms |
27912 KB |
Output is correct |
| 79 |
Correct |
570 ms |
27468 KB |
Output is correct |
| 80 |
Correct |
121 ms |
27512 KB |
Output is correct |
| 81 |
Correct |
223 ms |
27564 KB |
Output is correct |
| 82 |
Correct |
523 ms |
19912 KB |
Output is correct |
| 83 |
Correct |
203 ms |
19860 KB |
Output is correct |
| 84 |
Correct |
75 ms |
19864 KB |
Output is correct |
| 85 |
Correct |
170 ms |
36500 KB |
Output is correct |
| 86 |
Correct |
244 ms |
36328 KB |
Output is correct |
| 87 |
Correct |
566 ms |
28660 KB |
Output is correct |
| 88 |
Correct |
129 ms |
28604 KB |
Output is correct |
