#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;
#define boost ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)
#define rando mt19937 rng(chrono::steady_clock::now().time_since_epoch().count())
#define fi first
#define se second
#define debug(x) cerr << " - " << #x << ": " << x << endl;
#define debugs(x, y) cerr << " - " << #x << ": " << x << " " << #y << ": " << y << endl;
#define debugii(x) cerr << " - " << #x << ": " << x.fi<<","<<x.se << endl;
#define sep() cerr << "--------------------" << endl;
#define all(x) (x).begin(),(x).end()
#define sz(x) (ll)x.size()
#define ld long double
#define ll long long
#define int ll
#define ii pair<int,int>
#define v vector<int>
#define vii vector<ii>
#define vv vector<vector<int> >
#define mp make_pair
#define INF 1000000000
#define pb push_back
#define EPS 1e-9
const int MOD = 1000000007; // 998244353
int A[1000006],B[1000006],bal[1000006],ans[1000006],n,r,sum=0;
void out(){
cout<<"No\n";
exit(0);
}
int32_t main(){
boost;
//freopen(".in","r",stdin);
cin>>n;
bool k=1,k2=1;
for (int i = 0; i < n; ++i){
cin>>A[i]>>B[i];
if(B[i]>0)k=0;
if(A[i]>0)k2=0;
bal[i]=B[i]-A[i];
sum+=bal[i]*(1LL<<i);
}
if(k&&k2){cout<<"Yes\n";return 0;}
else if(k)out();
int x=(1-(1LL<<n));
if(sum%x)out();
sum/=x;
ans[n-1]=sum;
if(sum<0)out();
for (int i = 0; i <= n-2; ++i)
{
ans[i]=ans[((i-1)%n+n)%n]-bal[i];
if((ans[i]&1) || (ans[i]<0))out();
ans[i]>>=1LL;
}
cout<<"Yes\n";
return 0;
}
//do smth instead of nothing and stay organized
//long long
//array bounds
//special cases
//binary search
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
384 KB |
Output is correct |
2 |
Correct |
1 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
0 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
1 ms |
384 KB |
Output is correct |
7 |
Correct |
0 ms |
384 KB |
Output is correct |
8 |
Correct |
0 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
384 KB |
Output is correct |
11 |
Correct |
0 ms |
384 KB |
Output is correct |
12 |
Correct |
2 ms |
384 KB |
Output is correct |
13 |
Correct |
0 ms |
384 KB |
Output is correct |
14 |
Correct |
0 ms |
384 KB |
Output is correct |
15 |
Correct |
0 ms |
384 KB |
Output is correct |
16 |
Correct |
0 ms |
384 KB |
Output is correct |
17 |
Correct |
0 ms |
384 KB |
Output is correct |
18 |
Correct |
1 ms |
384 KB |
Output is correct |
19 |
Correct |
1 ms |
384 KB |
Output is correct |
20 |
Correct |
0 ms |
384 KB |
Output is correct |
21 |
Correct |
1 ms |
384 KB |
Output is correct |
22 |
Correct |
0 ms |
384 KB |
Output is correct |
23 |
Correct |
0 ms |
384 KB |
Output is correct |
24 |
Correct |
0 ms |
384 KB |
Output is correct |
25 |
Correct |
0 ms |
384 KB |
Output is correct |
26 |
Correct |
0 ms |
384 KB |
Output is correct |
27 |
Correct |
1 ms |
384 KB |
Output is correct |
28 |
Correct |
1 ms |
384 KB |
Output is correct |
29 |
Correct |
0 ms |
384 KB |
Output is correct |
30 |
Correct |
1 ms |
384 KB |
Output is correct |
31 |
Correct |
0 ms |
384 KB |
Output is correct |
32 |
Correct |
0 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
384 KB |
Output is correct |
2 |
Correct |
1 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
0 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
1 ms |
384 KB |
Output is correct |
7 |
Correct |
0 ms |
384 KB |
Output is correct |
8 |
Correct |
0 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
384 KB |
Output is correct |
11 |
Correct |
0 ms |
384 KB |
Output is correct |
12 |
Correct |
2 ms |
384 KB |
Output is correct |
13 |
Correct |
0 ms |
384 KB |
Output is correct |
14 |
Correct |
0 ms |
384 KB |
Output is correct |
15 |
Correct |
0 ms |
384 KB |
Output is correct |
16 |
Correct |
0 ms |
384 KB |
Output is correct |
17 |
Correct |
0 ms |
384 KB |
Output is correct |
18 |
Correct |
1 ms |
384 KB |
Output is correct |
19 |
Correct |
1 ms |
384 KB |
Output is correct |
20 |
Correct |
0 ms |
384 KB |
Output is correct |
21 |
Correct |
1 ms |
384 KB |
Output is correct |
22 |
Correct |
0 ms |
384 KB |
Output is correct |
23 |
Correct |
0 ms |
384 KB |
Output is correct |
24 |
Correct |
0 ms |
384 KB |
Output is correct |
25 |
Correct |
0 ms |
384 KB |
Output is correct |
26 |
Correct |
0 ms |
384 KB |
Output is correct |
27 |
Correct |
1 ms |
384 KB |
Output is correct |
28 |
Correct |
1 ms |
384 KB |
Output is correct |
29 |
Correct |
0 ms |
384 KB |
Output is correct |
30 |
Correct |
1 ms |
384 KB |
Output is correct |
31 |
Correct |
0 ms |
384 KB |
Output is correct |
32 |
Correct |
0 ms |
384 KB |
Output is correct |
33 |
Correct |
1 ms |
384 KB |
Output is correct |
34 |
Correct |
0 ms |
384 KB |
Output is correct |
35 |
Correct |
0 ms |
384 KB |
Output is correct |
36 |
Correct |
1 ms |
384 KB |
Output is correct |
37 |
Correct |
1 ms |
384 KB |
Output is correct |
38 |
Correct |
1 ms |
384 KB |
Output is correct |
39 |
Correct |
1 ms |
384 KB |
Output is correct |
40 |
Correct |
1 ms |
384 KB |
Output is correct |
41 |
Correct |
0 ms |
384 KB |
Output is correct |
42 |
Correct |
0 ms |
384 KB |
Output is correct |
43 |
Correct |
1 ms |
384 KB |
Output is correct |
44 |
Correct |
1 ms |
384 KB |
Output is correct |
45 |
Correct |
0 ms |
384 KB |
Output is correct |
46 |
Correct |
1 ms |
384 KB |
Output is correct |
47 |
Correct |
1 ms |
384 KB |
Output is correct |
48 |
Correct |
1 ms |
384 KB |
Output is correct |
49 |
Correct |
0 ms |
384 KB |
Output is correct |
50 |
Correct |
1 ms |
384 KB |
Output is correct |
51 |
Correct |
0 ms |
384 KB |
Output is correct |
52 |
Correct |
0 ms |
384 KB |
Output is correct |
53 |
Correct |
0 ms |
384 KB |
Output is correct |
54 |
Correct |
0 ms |
384 KB |
Output is correct |
55 |
Correct |
0 ms |
384 KB |
Output is correct |
56 |
Correct |
1 ms |
384 KB |
Output is correct |
57 |
Correct |
0 ms |
384 KB |
Output is correct |
58 |
Correct |
0 ms |
384 KB |
Output is correct |
59 |
Correct |
0 ms |
384 KB |
Output is correct |
60 |
Correct |
0 ms |
384 KB |
Output is correct |
61 |
Correct |
1 ms |
384 KB |
Output is correct |
62 |
Correct |
0 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
384 KB |
Output is correct |
2 |
Correct |
1 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
0 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
1 ms |
384 KB |
Output is correct |
7 |
Correct |
0 ms |
384 KB |
Output is correct |
8 |
Correct |
0 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
384 KB |
Output is correct |
11 |
Correct |
0 ms |
384 KB |
Output is correct |
12 |
Correct |
2 ms |
384 KB |
Output is correct |
13 |
Correct |
0 ms |
384 KB |
Output is correct |
14 |
Correct |
0 ms |
384 KB |
Output is correct |
15 |
Correct |
0 ms |
384 KB |
Output is correct |
16 |
Correct |
0 ms |
384 KB |
Output is correct |
17 |
Correct |
0 ms |
384 KB |
Output is correct |
18 |
Correct |
1 ms |
384 KB |
Output is correct |
19 |
Correct |
1 ms |
384 KB |
Output is correct |
20 |
Correct |
0 ms |
384 KB |
Output is correct |
21 |
Correct |
1 ms |
384 KB |
Output is correct |
22 |
Correct |
0 ms |
384 KB |
Output is correct |
23 |
Correct |
0 ms |
384 KB |
Output is correct |
24 |
Correct |
0 ms |
384 KB |
Output is correct |
25 |
Correct |
0 ms |
384 KB |
Output is correct |
26 |
Correct |
0 ms |
384 KB |
Output is correct |
27 |
Correct |
1 ms |
384 KB |
Output is correct |
28 |
Correct |
1 ms |
384 KB |
Output is correct |
29 |
Correct |
0 ms |
384 KB |
Output is correct |
30 |
Correct |
1 ms |
384 KB |
Output is correct |
31 |
Correct |
0 ms |
384 KB |
Output is correct |
32 |
Correct |
0 ms |
384 KB |
Output is correct |
33 |
Correct |
1 ms |
384 KB |
Output is correct |
34 |
Correct |
0 ms |
384 KB |
Output is correct |
35 |
Correct |
0 ms |
384 KB |
Output is correct |
36 |
Correct |
1 ms |
384 KB |
Output is correct |
37 |
Correct |
1 ms |
384 KB |
Output is correct |
38 |
Correct |
1 ms |
384 KB |
Output is correct |
39 |
Correct |
1 ms |
384 KB |
Output is correct |
40 |
Correct |
1 ms |
384 KB |
Output is correct |
41 |
Correct |
0 ms |
384 KB |
Output is correct |
42 |
Correct |
0 ms |
384 KB |
Output is correct |
43 |
Correct |
1 ms |
384 KB |
Output is correct |
44 |
Correct |
1 ms |
384 KB |
Output is correct |
45 |
Correct |
0 ms |
384 KB |
Output is correct |
46 |
Correct |
1 ms |
384 KB |
Output is correct |
47 |
Correct |
1 ms |
384 KB |
Output is correct |
48 |
Correct |
1 ms |
384 KB |
Output is correct |
49 |
Correct |
0 ms |
384 KB |
Output is correct |
50 |
Correct |
1 ms |
384 KB |
Output is correct |
51 |
Correct |
0 ms |
384 KB |
Output is correct |
52 |
Correct |
0 ms |
384 KB |
Output is correct |
53 |
Correct |
0 ms |
384 KB |
Output is correct |
54 |
Correct |
0 ms |
384 KB |
Output is correct |
55 |
Correct |
0 ms |
384 KB |
Output is correct |
56 |
Correct |
1 ms |
384 KB |
Output is correct |
57 |
Correct |
0 ms |
384 KB |
Output is correct |
58 |
Correct |
0 ms |
384 KB |
Output is correct |
59 |
Correct |
0 ms |
384 KB |
Output is correct |
60 |
Correct |
0 ms |
384 KB |
Output is correct |
61 |
Correct |
1 ms |
384 KB |
Output is correct |
62 |
Correct |
0 ms |
384 KB |
Output is correct |
63 |
Runtime error |
315 ms |
67448 KB |
Execution killed with signal 8 (could be triggered by violating memory limits) |
64 |
Halted |
0 ms |
0 KB |
- |