@[Lijinyuan123](/user/1183284) 您的代码？
by fire_wolf @ 2023-11-17 21:33:18
```cpp
#include<iostream>
using namespace std;
int main(){
int s[1001],z[1001];
int n,i,a,b;
int t=-1;
cin>>n;
for(i=1;i<=n;i++){
cin>>s[i];
}
a=1;
b=1;
int k=1;
for(i=1;i<=n;i++){
if(a==s[b]){
a++;
b++;
}
else if(t!=-1&&z[t]==s[b]){
t--;
z[a]++;
}
else if(a<=n){
t++;
z[t]=a++;
}
else{
k=1;
break;
}
}
if(k==1){
cout<<"YES";
}
else
cout<<"NO";
}
by Lijinyuan123 @ 2023-11-18 21:10:43
有没有题目
by zshs0712 @ 2023-11-18 21:25:58
@[zshs0712](/user/1187222)
~~蒟蒻~~什么意思
by Lijinyuan123 @ 2023-11-22 19:58:46
呵呵，搞错了
by zshs0712 @ 2023-11-24 20:05:12
@[zshs0712](/user/1187222)
不是别开玩笑了=]
by Lijinyuan123 @ 2023-12-01 21:45:34