#include <iostream>
#include <algorithm>
using namespace std;
long long e[1005005],i,ok1,ok2,a[1005005],b[1005005],n,d[1005005],pp[1001],f[1000005],p;
void make()
{
long long t=0,i;
for (i=1;(i<=e[0]||t)&&i<=1005004;++i)
{
e[i]+=t;
t=0;
if (e[i]>=0) {t=e[i]/2; e[i]%=2;}
else {t=(e[i]-1)/2; e[i]=(e[i]%2+2)%2;}
}
e[0]=i-1;
if (i>1005000) e[0]=1,e[1]=-1;
else while (e[e[0]]==0&&e[0]!=0) e[0]--;
}
int main()
{
ios_base::sync_with_stdio(NULL);
cin.tie(0);
cout.tie(0);
cin>>n;
for (i=1;i<=n;++i)
{
cin>>a[i];
if (a[i]!=0) ok1=1;
cin>>b[i];
if (b[i]!=0) ok2=1;
d[i]=a[i]-b[i];
e[i]=d[i];
}
e[0]=n;
if (!ok1&&!ok2) {cout<<"Yes"; return 0;}
else if (!ok2) {cout<<"No"; return 0;}
make();
while (true)
{
if (e[0]==0) { break;}
if (e[e[0]]<0) {cout<<"No"; return 0;}
if (e[1]==0) {pp[++pp[0]]=0; for (i=1;i<e[0];++i) e[i]=e[i+1]; e[e[0]]=0; e[0]--;}
else
{
pp[++pp[0]]=1;
for (i=1;i<=n;++i)
e[i]--;
e[0]=max(e[0],n);
make();
}
}
reverse(pp+1,pp+pp[0]+1);
for (i=1;i<=pp[0];++i)
{
if (pp[i]==0) p*=2;
else p++;
}
f[n]=p;
for (i=n;i>=2;--i)
{
f[i-1]=f[i]*2-d[i];
if (f[i-1]<0) {cout<<"No"; return 0;}
}
cout<<"Yes";
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 2 |
Correct |
0 ms |
340 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
0 ms |
340 KB |
Output is correct |
| 5 |
Correct |
0 ms |
340 KB |
Output is correct |
| 6 |
Correct |
0 ms |
340 KB |
Output is correct |
| 7 |
Correct |
0 ms |
340 KB |
Output is correct |
| 8 |
Correct |
0 ms |
340 KB |
Output is correct |
| 9 |
Correct |
0 ms |
340 KB |
Output is correct |
| 10 |
Correct |
0 ms |
340 KB |
Output is correct |
| 11 |
Correct |
0 ms |
340 KB |
Output is correct |
| 12 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 13 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 14 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 15 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 16 |
Correct |
0 ms |
340 KB |
Output is correct |
| 17 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 18 |
Correct |
0 ms |
340 KB |
Output is correct |
| 19 |
Correct |
1 ms |
340 KB |
Output is correct |
| 20 |
Correct |
0 ms |
340 KB |
Output is correct |
| 21 |
Correct |
0 ms |
340 KB |
Output is correct |
| 22 |
Correct |
0 ms |
340 KB |
Output is correct |
| 23 |
Correct |
0 ms |
340 KB |
Output is correct |
| 24 |
Correct |
0 ms |
340 KB |
Output is correct |
| 25 |
Correct |
6 ms |
8216 KB |
Output is correct |
| 26 |
Correct |
0 ms |
340 KB |
Output is correct |
| 27 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 28 |
Correct |
0 ms |
340 KB |
Output is correct |
| 29 |
Correct |
0 ms |
340 KB |
Output is correct |
| 30 |
Correct |
7 ms |
8148 KB |
Output is correct |
| 31 |
Correct |
0 ms |
340 KB |
Output is correct |
| 32 |
Correct |
0 ms |
340 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 2 |
Correct |
0 ms |
340 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
0 ms |
340 KB |
Output is correct |
| 5 |
Correct |
0 ms |
340 KB |
Output is correct |
| 6 |
Correct |
0 ms |
340 KB |
Output is correct |
| 7 |
Correct |
0 ms |
340 KB |
Output is correct |
| 8 |
Correct |
0 ms |
340 KB |
Output is correct |
| 9 |
Correct |
0 ms |
340 KB |
Output is correct |
| 10 |
Correct |
0 ms |
340 KB |
Output is correct |
| 11 |
Correct |
0 ms |
340 KB |
Output is correct |
| 12 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 13 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 14 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 15 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 16 |
Correct |
0 ms |
340 KB |
Output is correct |
| 17 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 18 |
Correct |
0 ms |
340 KB |
Output is correct |
| 19 |
Correct |
1 ms |
340 KB |
Output is correct |
| 20 |
Correct |
0 ms |
340 KB |
Output is correct |
| 21 |
Correct |
0 ms |
340 KB |
Output is correct |
| 22 |
Correct |
0 ms |
340 KB |
Output is correct |
| 23 |
Correct |
0 ms |
340 KB |
Output is correct |
| 24 |
Correct |
0 ms |
340 KB |
Output is correct |
| 25 |
Correct |
6 ms |
8216 KB |
Output is correct |
| 26 |
Correct |
0 ms |
340 KB |
Output is correct |
| 27 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 28 |
Correct |
0 ms |
340 KB |
Output is correct |
| 29 |
Correct |
0 ms |
340 KB |
Output is correct |
| 30 |
Correct |
7 ms |
8148 KB |
Output is correct |
| 31 |
Correct |
0 ms |
340 KB |
Output is correct |
| 32 |
Correct |
0 ms |
340 KB |
Output is correct |
| 33 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 34 |
Correct |
0 ms |
340 KB |
Output is correct |
| 35 |
Correct |
0 ms |
340 KB |
Output is correct |
| 36 |
Correct |
1 ms |
340 KB |
Output is correct |
| 37 |
Correct |
1 ms |
340 KB |
Output is correct |
| 38 |
Correct |
0 ms |
340 KB |
Output is correct |
| 39 |
Correct |
0 ms |
340 KB |
Output is correct |
| 40 |
Correct |
1 ms |
340 KB |
Output is correct |
| 41 |
Correct |
0 ms |
340 KB |
Output is correct |
| 42 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 43 |
Correct |
6 ms |
8188 KB |
Output is correct |
| 44 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 45 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 46 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 47 |
Correct |
0 ms |
340 KB |
Output is correct |
| 48 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 49 |
Correct |
0 ms |
340 KB |
Output is correct |
| 50 |
Correct |
0 ms |
340 KB |
Output is correct |
| 51 |
Correct |
0 ms |
340 KB |
Output is correct |
| 52 |
Correct |
0 ms |
340 KB |
Output is correct |
| 53 |
Correct |
0 ms |
340 KB |
Output is correct |
| 54 |
Correct |
0 ms |
340 KB |
Output is correct |
| 55 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 56 |
Correct |
0 ms |
340 KB |
Output is correct |
| 57 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 58 |
Correct |
0 ms |
340 KB |
Output is correct |
| 59 |
Correct |
0 ms |
340 KB |
Output is correct |
| 60 |
Correct |
7 ms |
8148 KB |
Output is correct |
| 61 |
Correct |
0 ms |
340 KB |
Output is correct |
| 62 |
Correct |
0 ms |
340 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 2 |
Correct |
0 ms |
340 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
0 ms |
340 KB |
Output is correct |
| 5 |
Correct |
0 ms |
340 KB |
Output is correct |
| 6 |
Correct |
0 ms |
340 KB |
Output is correct |
| 7 |
Correct |
0 ms |
340 KB |
Output is correct |
| 8 |
Correct |
0 ms |
340 KB |
Output is correct |
| 9 |
Correct |
0 ms |
340 KB |
Output is correct |
| 10 |
Correct |
0 ms |
340 KB |
Output is correct |
| 11 |
Correct |
0 ms |
340 KB |
Output is correct |
| 12 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 13 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 14 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 15 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 16 |
Correct |
0 ms |
340 KB |
Output is correct |
| 17 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 18 |
Correct |
0 ms |
340 KB |
Output is correct |
| 19 |
Correct |
1 ms |
340 KB |
Output is correct |
| 20 |
Correct |
0 ms |
340 KB |
Output is correct |
| 21 |
Correct |
0 ms |
340 KB |
Output is correct |
| 22 |
Correct |
0 ms |
340 KB |
Output is correct |
| 23 |
Correct |
0 ms |
340 KB |
Output is correct |
| 24 |
Correct |
0 ms |
340 KB |
Output is correct |
| 25 |
Correct |
6 ms |
8216 KB |
Output is correct |
| 26 |
Correct |
0 ms |
340 KB |
Output is correct |
| 27 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 28 |
Correct |
0 ms |
340 KB |
Output is correct |
| 29 |
Correct |
0 ms |
340 KB |
Output is correct |
| 30 |
Correct |
7 ms |
8148 KB |
Output is correct |
| 31 |
Correct |
0 ms |
340 KB |
Output is correct |
| 32 |
Correct |
0 ms |
340 KB |
Output is correct |
| 33 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 34 |
Correct |
0 ms |
340 KB |
Output is correct |
| 35 |
Correct |
0 ms |
340 KB |
Output is correct |
| 36 |
Correct |
1 ms |
340 KB |
Output is correct |
| 37 |
Correct |
1 ms |
340 KB |
Output is correct |
| 38 |
Correct |
0 ms |
340 KB |
Output is correct |
| 39 |
Correct |
0 ms |
340 KB |
Output is correct |
| 40 |
Correct |
1 ms |
340 KB |
Output is correct |
| 41 |
Correct |
0 ms |
340 KB |
Output is correct |
| 42 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 43 |
Correct |
6 ms |
8188 KB |
Output is correct |
| 44 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 45 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 46 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 47 |
Correct |
0 ms |
340 KB |
Output is correct |
| 48 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 49 |
Correct |
0 ms |
340 KB |
Output is correct |
| 50 |
Correct |
0 ms |
340 KB |
Output is correct |
| 51 |
Correct |
0 ms |
340 KB |
Output is correct |
| 52 |
Correct |
0 ms |
340 KB |
Output is correct |
| 53 |
Correct |
0 ms |
340 KB |
Output is correct |
| 54 |
Correct |
0 ms |
340 KB |
Output is correct |
| 55 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 56 |
Correct |
0 ms |
340 KB |
Output is correct |
| 57 |
Correct |
6 ms |
8148 KB |
Output is correct |
| 58 |
Correct |
0 ms |
340 KB |
Output is correct |
| 59 |
Correct |
0 ms |
340 KB |
Output is correct |
| 60 |
Correct |
7 ms |
8148 KB |
Output is correct |
| 61 |
Correct |
0 ms |
340 KB |
Output is correct |
| 62 |
Correct |
0 ms |
340 KB |
Output is correct |
| 63 |
Correct |
185 ms |
31568 KB |
Output is correct |
| 64 |
Correct |
110 ms |
39440 KB |
Output is correct |
| 65 |
Correct |
249 ms |
39352 KB |
Output is correct |
| 66 |
Correct |
106 ms |
39460 KB |
Output is correct |
| 67 |
Correct |
124 ms |
39364 KB |
Output is correct |
| 68 |
Correct |
136 ms |
39380 KB |
Output is correct |
| 69 |
Correct |
260 ms |
39372 KB |
Output is correct |
| 70 |
Execution timed out |
1100 ms |
31740 KB |
Time limit exceeded |
| 71 |
Halted |
0 ms |
0 KB |
- |
