#include <bits/stdc++.h>
using namespace std;
#define int long long
int32_t main() {
int n,k;cin>>n>>k;
vector<int> v(n);
for(int i=0;i<n;i++){
cin>>v[i];
}
int p=max_element(v.begin(),v.end())-v.begin();
rotate(v.begin(),v.begin()+p,v.end());
v.push_back(v[0]);
set<int> s;
for(int i=0;i<=n;i++){
s.insert(i);
}
vector<pair<int,int>> a,b;
for(int i=1;i<n;i++){
a.push_back({v[i],i});
}
sort(a.begin(),a.end());
for(int j=0;j<n-1;j++){
int i=a[j].second;
auto it=--s.lower_bound(i);
auto it1=s.upper_bound(i);
b.push_back({*it1-*it-1,min(v[*it],v[*it1])-v[i]});
s.erase(i);
}
sort(b.begin(),b.end());
int ans=0;
for(auto[p,cnt]:b){
if(p*cnt>k){
ans+=k/p;
break;
}
ans+=cnt;
k-=p*cnt;
}
cout<<ans*2<<endl;
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
344 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
344 KB |
Output is correct |
5 |
Correct |
1 ms |
344 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
344 KB |
Output is correct |
8 |
Correct |
1 ms |
344 KB |
Output is correct |
9 |
Correct |
1 ms |
344 KB |
Output is correct |
10 |
Correct |
54 ms |
9756 KB |
Output is correct |
11 |
Correct |
101 ms |
11424 KB |
Output is correct |
12 |
Correct |
55 ms |
9640 KB |
Output is correct |
13 |
Runtime error |
465 ms |
65536 KB |
Execution killed with signal 9 |
14 |
Halted |
0 ms |
0 KB |
- |