Submission #8529366
Source Code Expand
#include <iostream> #include <iomanip> #include <vector> #include <stack> #include <queue> #include <set> #include <map> #include <algorithm> #include <cstdio> #include <utility> #include <string> #include <cmath> #include <cstdlib> #include <cstring> using namespace std; typedef uint64_t u64; typedef int64_t s64; typedef uint32_t u32; typedef int32_t s32; const double PI=3.14159265358979323846; #define MAX(x, y) ((x) < (y) ? (y) : (x)) #define MIN(x, y) ((x) > (y) ? (y) : (x)) #define rep(i, N) for(int i = 0; i < N; ++i) #define CEIL(x, y) (((x) + (y) - 1) / (y)) #define MOD 1000000007ULL int p[2 * 100000]; int main() { cin.tie(0); ios::sync_with_stdio(false); int N; cin >> N; int P; rep (i, N) { cin >> P; p[P - 1] = i; } int ans = 1; int previ = 0; for (int i = 0; i < N - 1; ++i) { while (i < N - 1 && p[i] < p[i + 1]) ++i; ans = MAX(i - previ + 1, ans); previ = i + 1; } cout << N - ans << "\n"; return 0; }
Submission Info
Submission Time | |
---|---|
Task | B - Backfront |
User | dsrkuym |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 1099 Byte |
Status | AC |
Exec Time | 21 ms |
Memory | 1024 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 | 21 ms | 1024 KB |
02.txt | AC | 20 ms | 1024 KB |
03.txt | AC | 20 ms | 1024 KB |
04.txt | AC | 20 ms | 1024 KB |
05.txt | AC | 20 ms | 1024 KB |
06.txt | AC | 20 ms | 1024 KB |
07.txt | AC | 17 ms | 1024 KB |
08.txt | AC | 17 ms | 1024 KB |
09.txt | AC | 17 ms | 1024 KB |
10.txt | AC | 17 ms | 1024 KB |
11.txt | AC | 18 ms | 1024 KB |
12.txt | AC | 18 ms | 1024 KB |
13.txt | AC | 18 ms | 1024 KB |
14.txt | AC | 18 ms | 1024 KB |
15.txt | AC | 19 ms | 1024 KB |
16.txt | AC | 20 ms | 1024 KB |
17.txt | AC | 20 ms | 1024 KB |
18.txt | AC | 20 ms | 1024 KB |
19.txt | AC | 17 ms | 1024 KB |
20.txt | AC | 17 ms | 1024 KB |
21.txt | AC | 19 ms | 1024 KB |
22.txt | AC | 19 ms | 1024 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 |