/// wa
#pragma GCC optimize("O3")
//#pragma comment(linker, "/STACK:36777216")
#include<bits/stdc++.h>
#define x first
#define y second
#define pb push_back
#define sz(x) (int) x.size()
#define all(z) (z).begin(), (z).end()
using namespace std;
using ll = long long;
using pii = pair<int, int>;
const int MOD = 1e9 + 7;
const int INF = 1e9 + 1e2;
//mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
void fin() {
#ifdef AM
freopen(".in", "r", stdin);
#endif
}
const bool flag = 0;
const int N = 1e5+10;
void ma1n() {
int n;
cin >> n;
vector<int> a(n);
for (int& x : a) {
cin >> x;
}
int cnt = 0;
vector<int> v, cur;
for (int i = 0; i < n; ++i) {
if (i && a[i] >= a[i-1]) {
cur.pb(a[i]);
} else {
cnt++;
if (!cur.empty()) {
v.insert(upper_bound(all(v), cur[0]), all(cur));
}
cur = {a[i]};
}
}
if (!cur.empty()) {
v.insert(upper_bound(all(v), cur[0]), all(cur));
}
if (is_sorted(all(v))) {
cout << cnt;
} else {
cout << n;
}
}
int main() {
ios_base::sync_with_stdio(0);
cin.tie(nullptr), fin();
int ts = 1;
if (flag) {
cin >> ts;
}
while (ts--) {
ma1n();
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Incorrect |
0 ms |
364 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Incorrect |
0 ms |
364 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Incorrect |
0 ms |
364 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Incorrect |
0 ms |
364 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |