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#include <bits/stdc++.h>
//#pragma GCC optimize("O3")
//#pragma GCC optimize("Ofast,no-stack-protector")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx")
//#pragma GCC target("avx,tune=native")
//float __attribute__((aligned(32)))
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef unsigned int uint;
int mysqrt(ll x){
int l = 0, r = 1e9 + 1;
while (r - l > 1){
int m = (l + r) / 2;
if (m * (ll)m <= x)
l = m;
else
r = m;
}
return l;
}
mt19937 rnd(1337);
mt19937_64 rndll(12365);
ll AR = 19, BR = 13, CR = 23, XR = 228, YR = 322, MODR = 1e9 + 993;
ll myrand(){
ll ZR = (XR * AR + YR * BR + CR) % MODR;
XR = YR;
YR = ZR;
return ZR;
}
const int Mod = 1e9 + 7;
int bpow(int x, int y){
if (y == 0)
return 1;
if (y == 1)
return x;
int ret = bpow(x, y >> 1);
ret = (ret * (ll)ret) % Mod;
if (y & 1)
ret = (ret * (ll)x) % Mod;
return ret;
}
int bdiv(int x, int y){
return (x * (ll)bpow(y, Mod - 2)) % Mod;
}
void setmin(int &x, int y){
x = min(x, y);
}
void setmax(int &x, int y){
x = max(x, y);
}
void setmin(ll &x, ll y){
x = min(x, y);
}
void setmax(ll &x, ll y){
x = max(x, y);
}
int gcd(int a, int b){
return a ? gcd(b % a, a) : b;
}
const ll llinf = 2e18 + 100;
const double eps = 1e-9;
const int maxn = 1e6 + 100, maxw = 1e6 + 100, inf = 2e9 + 100, sq = 300, mod = 1e9 + 7, LG = 17;
int n;
int a[maxn];
pair<int, int> q[maxn];
int main()
{
#ifdef ONPC
//ifstream cin("a.in");
//ofstream cout("a.out");
freopen("a.in", "r", stdin);
freopen("a.out", "w", stdout);
#else
//ifstream cin("gymnasts.in");
//ofstream cout("gymnasts.out");
//freopen("post.in", "r", stdin);
//freopen("post.out", "w", stdout);
#endif // ONPC
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
cin >> n;
for (int i = 0; i < n; i++)
cin >> a[i], q[i] = make_pair(a[i], i);
int answer = 1, ans = answer;
sort(q, q + n);
int it = 0;
while (it < n){
int last = it;
while (it < n && q[it].first == q[last].first && q[it].second == q[last].second + it - last)
it++;
int l = q[last].second, r = q[it - 1].second;
if ((l == 0 || a[l - 1] < q[last].first) && (r == n - 1 || a[r + 1] < q[last].first))
ans--;
if (l > 0 && a[l - 1] > q[last].first && r < n - 1 && a[r + 1] > q[last].first)
ans++;
if (it == n || q[it].first != q[it - 1].first)
answer = max(answer, ans);
}
cout << answer;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| 3 |
Correct |
2 ms |
572 KB |
Output is correct |
| 4 |
Correct |
2 ms |
580 KB |
Output is correct |
| 5 |
Correct |
2 ms |
660 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
23 ms |
2224 KB |
Output is correct |
| 2 |
Correct |
25 ms |
2576 KB |
Output is correct |
| 3 |
Correct |
23 ms |
2696 KB |
Output is correct |
| 4 |
Correct |
23 ms |
3076 KB |
Output is correct |
| 5 |
Correct |
24 ms |
3236 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
25 ms |
4016 KB |
Output is correct |
| 2 |
Correct |
18 ms |
4724 KB |
Output is correct |
| 3 |
Correct |
25 ms |
5484 KB |
Output is correct |
| 4 |
Correct |
24 ms |
6320 KB |
Output is correct |
| 5 |
Correct |
25 ms |
7156 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
270 ms |
27120 KB |
Output is correct |
| 2 |
Correct |
267 ms |
32768 KB |
Output is correct |
| 3 |
Correct |
266 ms |
32768 KB |
Output is correct |
| 4 |
Correct |
266 ms |
32768 KB |
Output is correct |
| 5 |
Correct |
258 ms |
32768 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
269 ms |
32768 KB |
Output is correct |
| 2 |
Correct |
291 ms |
32768 KB |
Output is correct |
| 3 |
Correct |
278 ms |
32768 KB |
Output is correct |
| 4 |
Correct |
234 ms |
32768 KB |
Output is correct |
| 5 |
Correct |
242 ms |
32768 KB |
Output is correct |
