// Judges with GCC >= 12 only needs Ofast
// #pragma GCC optimize("O3,no-stack-protector,fast-math,unroll-loops,tree-vectorize")
// MLE optimization
// #pragma GCC optimize("conserve-stack")
// Old judges
// #pragma GCC target("sse4.2,popcnt,lzcnt,abm,mmx,fma,bmi,bmi2")
// New judges. Test with assert(__builtin_cpu_supports("avx2"));
// #pragma GCC target("avx2,popcnt,lzcnt,abm,bmi,bmi2,fma,tune=native")
// Atcoder
// #pragma GCC target("avx2,popcnt,lzcnt,abm,bmi,bmi2,fma")
/*
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update> ordered_set;
- insert(x),erase(x)
- find_by_order(k): return iterator to the k-th smallest element
- order_of_key(x): the number of elements that are strictly smaller
*/
#include<bits/stdc++.h>
using namespace std;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
uniform_real_distribution<> pp(0.0,1.0);
#define int long long
#define ld long double
#define pii pair<int,int>
#define piii pair<int,pii>
#define mpp make_pair
#define fi first
#define se second
const int inf=1e18;
const int mod=998244353;
const int maxn=200005;
const int bl=650;
const int maxs=655;
const int maxm=200005;
const int maxq=1000005;
const int maxl=25;
const int maxa=1000000;
const int root=3;
int power(int a,int n){
int res=1;
while(n){
if(n&1) res=res*a%mod;
a=a*a%mod;n>>=1;
}
return res;
}
const int iroot=power(3,mod-2);
const int base=131;
int n,a[maxn],nxt[maxn],ss=0;
void solve(){
cin >> n;
for(int i=0;i<n;i++) cin >> a[i],ss+=a[i];
auto check = [&](int d){
int p=0,sum=0;
//cout << d << '\n';
for(int i=0;i<n;i++){
while(sum<d) sum+=a[p],p=(p+1)%n;
nxt[i]=p;sum-=a[i];
//cout << i << ' ' << p << '\n';
}
for(int i=0;i<n;i++){
int t0=nxt[i],t1=nxt[t0],t2=nxt[t1];
while(t0<=i) t0+=n;
while(t1<=t0) t1+=n;
while(t2<=t1) t2+=n;
if(t2-i<=n) return true;
}
return false;
};
int res=0,l=1,r=ss/3;
while(l<=r){
int mid=(l+r)>>1;
if(check(mid)) res=mid,l=mid+1;
else r=mid-1;
}
cout << res << '\n';
}
signed main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);cout.tie(NULL);
int test=1;//cin >> test;
while(test--) solve();
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Correct |
1 ms |
2396 KB |
Output is correct |
5 |
Correct |
1 ms |
2424 KB |
Output is correct |
6 |
Correct |
1 ms |
2396 KB |
Output is correct |
7 |
Correct |
1 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
1 ms |
2396 KB |
Output is correct |
10 |
Correct |
1 ms |
2396 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Correct |
1 ms |
2396 KB |
Output is correct |
5 |
Correct |
1 ms |
2424 KB |
Output is correct |
6 |
Correct |
1 ms |
2396 KB |
Output is correct |
7 |
Correct |
1 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
1 ms |
2396 KB |
Output is correct |
10 |
Correct |
1 ms |
2396 KB |
Output is correct |
11 |
Correct |
1 ms |
2396 KB |
Output is correct |
12 |
Correct |
1 ms |
2396 KB |
Output is correct |
13 |
Correct |
1 ms |
2396 KB |
Output is correct |
14 |
Correct |
1 ms |
2396 KB |
Output is correct |
15 |
Correct |
1 ms |
2396 KB |
Output is correct |
16 |
Correct |
1 ms |
2396 KB |
Output is correct |
17 |
Correct |
1 ms |
2396 KB |
Output is correct |
18 |
Correct |
1 ms |
2396 KB |
Output is correct |
19 |
Correct |
1 ms |
2396 KB |
Output is correct |
20 |
Correct |
1 ms |
2396 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Correct |
1 ms |
2396 KB |
Output is correct |
5 |
Correct |
1 ms |
2424 KB |
Output is correct |
6 |
Correct |
1 ms |
2396 KB |
Output is correct |
7 |
Correct |
1 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
1 ms |
2396 KB |
Output is correct |
10 |
Correct |
1 ms |
2396 KB |
Output is correct |
11 |
Correct |
1 ms |
2396 KB |
Output is correct |
12 |
Correct |
1 ms |
2396 KB |
Output is correct |
13 |
Correct |
1 ms |
2396 KB |
Output is correct |
14 |
Correct |
1 ms |
2396 KB |
Output is correct |
15 |
Correct |
1 ms |
2396 KB |
Output is correct |
16 |
Correct |
1 ms |
2396 KB |
Output is correct |
17 |
Correct |
1 ms |
2396 KB |
Output is correct |
18 |
Correct |
1 ms |
2396 KB |
Output is correct |
19 |
Correct |
1 ms |
2396 KB |
Output is correct |
20 |
Correct |
1 ms |
2396 KB |
Output is correct |
21 |
Correct |
3 ms |
2396 KB |
Output is correct |
22 |
Correct |
3 ms |
2396 KB |
Output is correct |
23 |
Correct |
3 ms |
2396 KB |
Output is correct |
24 |
Correct |
3 ms |
2396 KB |
Output is correct |
25 |
Correct |
3 ms |
2396 KB |
Output is correct |
26 |
Correct |
4 ms |
2524 KB |
Output is correct |
27 |
Correct |
5 ms |
2904 KB |
Output is correct |
28 |
Correct |
4 ms |
2652 KB |
Output is correct |
29 |
Correct |
5 ms |
2652 KB |
Output is correct |
30 |
Correct |
5 ms |
2652 KB |
Output is correct |
31 |
Correct |
3 ms |
2396 KB |
Output is correct |
32 |
Correct |
3 ms |
2396 KB |
Output is correct |
33 |
Correct |
3 ms |
2648 KB |
Output is correct |
34 |
Correct |
3 ms |
2396 KB |
Output is correct |
35 |
Correct |
3 ms |
2396 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Correct |
1 ms |
2396 KB |
Output is correct |
5 |
Correct |
1 ms |
2424 KB |
Output is correct |
6 |
Correct |
1 ms |
2396 KB |
Output is correct |
7 |
Correct |
1 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
1 ms |
2396 KB |
Output is correct |
10 |
Correct |
1 ms |
2396 KB |
Output is correct |
11 |
Correct |
1 ms |
2396 KB |
Output is correct |
12 |
Correct |
1 ms |
2396 KB |
Output is correct |
13 |
Correct |
1 ms |
2396 KB |
Output is correct |
14 |
Correct |
1 ms |
2396 KB |
Output is correct |
15 |
Correct |
1 ms |
2396 KB |
Output is correct |
16 |
Correct |
1 ms |
2396 KB |
Output is correct |
17 |
Correct |
1 ms |
2396 KB |
Output is correct |
18 |
Correct |
1 ms |
2396 KB |
Output is correct |
19 |
Correct |
1 ms |
2396 KB |
Output is correct |
20 |
Correct |
1 ms |
2396 KB |
Output is correct |
21 |
Correct |
3 ms |
2396 KB |
Output is correct |
22 |
Correct |
3 ms |
2396 KB |
Output is correct |
23 |
Correct |
3 ms |
2396 KB |
Output is correct |
24 |
Correct |
3 ms |
2396 KB |
Output is correct |
25 |
Correct |
3 ms |
2396 KB |
Output is correct |
26 |
Correct |
4 ms |
2524 KB |
Output is correct |
27 |
Correct |
5 ms |
2904 KB |
Output is correct |
28 |
Correct |
4 ms |
2652 KB |
Output is correct |
29 |
Correct |
5 ms |
2652 KB |
Output is correct |
30 |
Correct |
5 ms |
2652 KB |
Output is correct |
31 |
Correct |
3 ms |
2396 KB |
Output is correct |
32 |
Correct |
3 ms |
2396 KB |
Output is correct |
33 |
Correct |
3 ms |
2648 KB |
Output is correct |
34 |
Correct |
3 ms |
2396 KB |
Output is correct |
35 |
Correct |
3 ms |
2396 KB |
Output is correct |
36 |
Correct |
51 ms |
3760 KB |
Output is correct |
37 |
Correct |
51 ms |
3760 KB |
Output is correct |
38 |
Correct |
51 ms |
3764 KB |
Output is correct |
39 |
Correct |
49 ms |
3764 KB |
Output is correct |
40 |
Correct |
51 ms |
3676 KB |
Output is correct |
41 |
Correct |
50 ms |
3676 KB |
Output is correct |
42 |
Correct |
52 ms |
3528 KB |
Output is correct |
43 |
Correct |
52 ms |
3760 KB |
Output is correct |
44 |
Correct |
50 ms |
3676 KB |
Output is correct |
45 |
Correct |
49 ms |
3676 KB |
Output is correct |
46 |
Correct |
23 ms |
2908 KB |
Output is correct |
47 |
Correct |
24 ms |
2908 KB |
Output is correct |
48 |
Correct |
23 ms |
2908 KB |
Output is correct |