#include <bits/stdc++.h>
using namespace std;
typedef long long llo;
#define mp make_pair
#define pb push_back
#define a first
#define b second
llo n;
pair<llo,llo> it[1000001];
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cin>>n;
int stt=0;
int tt=1;
for(llo i=0;i<n;i++){
cin>>it[i].a>>it[i].b;
if(it[i].b>0){
stt=1;
}
if(it[i].a!=it[i].b){
tt=0;
}
}
llo su=0;
llo cur=1;
for(llo i=1;i<n;i++){
su+=(it[i].a-it[i].b)*cur;
cur*=2;
}
su+=cur*(it[0].a-it[0].b);
cur*=2;
cur-=1;
if(su<0){
cout<<"No"<<endl;
}
else{
if(su%cur>0){
cout<<"No"<<endl;
}
else{
llo ac=su/cur;
vector<int> val;
val.pb(ac);
for(llo i=1;i<n;i++){
llo cc=it[i].a-it[i].b+ac;
if(cc<0){
cout<<"No"<<endl;
return 0;
}
if(cc%2>0){
cout<<"No"<<endl;
return 0;
}
ac=cc/2;
val.pb(ac);
}
if(tt==0 and stt==0){
cout<<"No"<<endl;
return 0;
}
/* set<pair<int,int>> kk;
for(int i=0;i<n;i++){
kk.insert({-it[i].a,i});
}
int st=1;
while(kk.size()){
pair<int,int> no=*kk.begin();
if(val[no.b]==0){
kk.erase(no);
continue;
}
no.a=-no.a;
if(no.a<=1){
st=0;
cout<<"No"<<endl;
return 0;
break;
}
val[no.b]-=1;
it[no.b].a-=2;
kk.erase(no);
kk.erase({-it[(no.b+1)%n].a,(no.b+1)%n});
it[(no.b+1)%n].a+=1;
kk.insert({-it[(no.b+1)%n].a,(no.b+1)%n});
kk.insert({-it[no.b].a,no.b});
}
for(int i=0;i<n;i++){
if(it[i].a!=it[i].b){
cout<<"No"<<endl;
return 0;
}
}
*/
cout<<"Yes"<<endl;
}
}
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
384 KB |
Output is correct |
| 2 |
Correct |
0 ms |
384 KB |
Output is correct |
| 3 |
Correct |
0 ms |
384 KB |
Output is correct |
| 4 |
Correct |
0 ms |
384 KB |
Output is correct |
| 5 |
Correct |
0 ms |
384 KB |
Output is correct |
| 6 |
Correct |
0 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 |
0 ms |
384 KB |
Output is correct |
| 10 |
Correct |
0 ms |
384 KB |
Output is correct |
| 11 |
Correct |
1 ms |
384 KB |
Output is correct |
| 12 |
Correct |
0 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 |
276 KB |
Output is correct |
| 16 |
Correct |
0 ms |
384 KB |
Output is correct |
| 17 |
Correct |
0 ms |
384 KB |
Output is correct |
| 18 |
Correct |
0 ms |
384 KB |
Output is correct |
| 19 |
Correct |
0 ms |
384 KB |
Output is correct |
| 20 |
Correct |
0 ms |
384 KB |
Output is correct |
| 21 |
Correct |
0 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 |
1 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 |
0 ms |
384 KB |
Output is correct |
| 28 |
Correct |
0 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 |
0 ms |
384 KB |
Output is correct |
| 3 |
Correct |
0 ms |
384 KB |
Output is correct |
| 4 |
Correct |
0 ms |
384 KB |
Output is correct |
| 5 |
Correct |
0 ms |
384 KB |
Output is correct |
| 6 |
Correct |
0 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 |
0 ms |
384 KB |
Output is correct |
| 10 |
Correct |
0 ms |
384 KB |
Output is correct |
| 11 |
Correct |
1 ms |
384 KB |
Output is correct |
| 12 |
Correct |
0 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 |
276 KB |
Output is correct |
| 16 |
Correct |
0 ms |
384 KB |
Output is correct |
| 17 |
Correct |
0 ms |
384 KB |
Output is correct |
| 18 |
Correct |
0 ms |
384 KB |
Output is correct |
| 19 |
Correct |
0 ms |
384 KB |
Output is correct |
| 20 |
Correct |
0 ms |
384 KB |
Output is correct |
| 21 |
Correct |
0 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 |
1 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 |
0 ms |
384 KB |
Output is correct |
| 28 |
Correct |
0 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 |
0 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 |
0 ms |
384 KB |
Output is correct |
| 37 |
Correct |
0 ms |
384 KB |
Output is correct |
| 38 |
Correct |
0 ms |
384 KB |
Output is correct |
| 39 |
Correct |
0 ms |
384 KB |
Output is correct |
| 40 |
Correct |
0 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 |
0 ms |
384 KB |
Output is correct |
| 44 |
Correct |
0 ms |
384 KB |
Output is correct |
| 45 |
Correct |
0 ms |
384 KB |
Output is correct |
| 46 |
Correct |
0 ms |
384 KB |
Output is correct |
| 47 |
Correct |
0 ms |
384 KB |
Output is correct |
| 48 |
Correct |
0 ms |
384 KB |
Output is correct |
| 49 |
Correct |
0 ms |
384 KB |
Output is correct |
| 50 |
Correct |
0 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 |
1 ms |
384 KB |
Output is correct |
| 55 |
Correct |
1 ms |
384 KB |
Output is correct |
| 56 |
Correct |
0 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 |
0 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 |
0 ms |
384 KB |
Output is correct |
| 3 |
Correct |
0 ms |
384 KB |
Output is correct |
| 4 |
Correct |
0 ms |
384 KB |
Output is correct |
| 5 |
Correct |
0 ms |
384 KB |
Output is correct |
| 6 |
Correct |
0 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 |
0 ms |
384 KB |
Output is correct |
| 10 |
Correct |
0 ms |
384 KB |
Output is correct |
| 11 |
Correct |
1 ms |
384 KB |
Output is correct |
| 12 |
Correct |
0 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 |
276 KB |
Output is correct |
| 16 |
Correct |
0 ms |
384 KB |
Output is correct |
| 17 |
Correct |
0 ms |
384 KB |
Output is correct |
| 18 |
Correct |
0 ms |
384 KB |
Output is correct |
| 19 |
Correct |
0 ms |
384 KB |
Output is correct |
| 20 |
Correct |
0 ms |
384 KB |
Output is correct |
| 21 |
Correct |
0 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 |
1 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 |
0 ms |
384 KB |
Output is correct |
| 28 |
Correct |
0 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 |
0 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 |
0 ms |
384 KB |
Output is correct |
| 37 |
Correct |
0 ms |
384 KB |
Output is correct |
| 38 |
Correct |
0 ms |
384 KB |
Output is correct |
| 39 |
Correct |
0 ms |
384 KB |
Output is correct |
| 40 |
Correct |
0 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 |
0 ms |
384 KB |
Output is correct |
| 44 |
Correct |
0 ms |
384 KB |
Output is correct |
| 45 |
Correct |
0 ms |
384 KB |
Output is correct |
| 46 |
Correct |
0 ms |
384 KB |
Output is correct |
| 47 |
Correct |
0 ms |
384 KB |
Output is correct |
| 48 |
Correct |
0 ms |
384 KB |
Output is correct |
| 49 |
Correct |
0 ms |
384 KB |
Output is correct |
| 50 |
Correct |
0 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 |
1 ms |
384 KB |
Output is correct |
| 55 |
Correct |
1 ms |
384 KB |
Output is correct |
| 56 |
Correct |
0 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 |
0 ms |
384 KB |
Output is correct |
| 62 |
Correct |
0 ms |
384 KB |
Output is correct |
| 63 |
Correct |
284 ms |
25464 KB |
Output is correct |
| 64 |
Correct |
124 ms |
24172 KB |
Output is correct |
| 65 |
Incorrect |
280 ms |
33016 KB |
Output isn't correct |
| 66 |
Halted |
0 ms |
0 KB |
- |
