Submission #3570610
Source Code Expand
// Ala be zekrellah tatmaenolgholoob ... #include <bits/stdc++.h> using namespace std; typedef long long ll; typedef pair<int,int> pii; #define F first #define S second #define MP make_pair const int maxn = 2e5+9; const ll mod = 1e9+7; int a[maxn], pos[maxn]; int main () { ios::sync_with_stdio(false); cin.tie(0); cout.tie(0); int n; cin >> n; for (int i = 0; i < n; i++) { cin >> a[i]; pos[a[i]] = i; } int cur = n, ans = 0; while (true) { int f = 1; while (true) { if (cur == 1 || pos[cur - 1] > pos[cur]) break; cur--; f++; } ans = max(ans, f); if (cur == 1) break; cur--; } cout << n - ans << "\n"; }
Submission Info
Submission Time | |
---|---|
Task | B - Backfront |
User | MB81 |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 684 Byte |
Status | AC |
Exec Time | 20 ms |
Memory | 1792 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 500 / 500 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | s1.txt, s2.txt, s3.txt |
All | 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, 16.txt, 17.txt, 18.txt, 19.txt, 20.txt, 21.txt, 22.txt, 23.txt, 24.txt, 25.txt, s1.txt, s2.txt, s3.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
01.txt | AC | 20 ms | 1792 KB |
02.txt | AC | 20 ms | 1792 KB |
03.txt | AC | 20 ms | 1792 KB |
04.txt | AC | 20 ms | 1792 KB |
05.txt | AC | 20 ms | 1792 KB |
06.txt | AC | 20 ms | 1792 KB |
07.txt | AC | 18 ms | 1792 KB |
08.txt | AC | 18 ms | 1792 KB |
09.txt | AC | 18 ms | 1792 KB |
10.txt | AC | 18 ms | 1792 KB |
11.txt | AC | 19 ms | 1792 KB |
12.txt | AC | 19 ms | 1792 KB |
13.txt | AC | 19 ms | 1792 KB |
14.txt | AC | 19 ms | 1792 KB |
15.txt | AC | 19 ms | 1792 KB |
16.txt | AC | 19 ms | 1792 KB |
17.txt | AC | 20 ms | 1792 KB |
18.txt | AC | 20 ms | 1792 KB |
19.txt | AC | 17 ms | 1792 KB |
20.txt | AC | 18 ms | 1792 KB |
21.txt | AC | 20 ms | 1792 KB |
22.txt | AC | 20 ms | 1792 KB |
23.txt | AC | 1 ms | 256 KB |
24.txt | AC | 1 ms | 256 KB |
25.txt | AC | 1 ms | 256 KB |
s1.txt | AC | 1 ms | 256 KB |
s2.txt | AC | 1 ms | 256 KB |
s3.txt | AC | 1 ms | 256 KB |