Submission #1267955
Source Code Expand
#include <bits/stdc++.h> using namespace std; long long int N, p[364364], id[364364], dp[364364], x, i; int main(){ iota(p, p + 364364, 1); scanf("%lld", &N); for(; i < N; ++i){ scanf("%lld", p + i); id[p[i]] = i; } dp[N] = 0; x = N; for(; --i;){ if(dp[i + 1]){ dp[i] = dp[i + 1]; if((id[i] < id[i + 1]) ^ (id[i + 1] < id[x]) ^ (id[x] < id[i])){ ++dp[i]; x = i + 1; } }else{ dp[i] = dp[i + 1] + ((id[i] > id[i + 1]) ? 1 : 0); if(id[i] < id[i + 1])--x; } } cout << dp[1] << endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | F - Strange Sorting |
User | MMNMM |
Language | C++14 (GCC 5.4.1) |
Score | 2400 |
Code Size | 694 Byte |
Status | AC |
Exec Time | 25 ms |
Memory | 8320 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:8:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld", &N); ^ ./Main.cpp:10:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld", p + i); ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 2400 / 2400 | ||||
Status |
|
|
Set Name | Test Cases |
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Sample | sample1.txt, sample2.txt, sample3.txt |
All | sample1.txt, sample2.txt, sample3.txt, in1.txt, in10.txt, in11.txt, in12.txt, in13.txt, in14.txt, in15.txt, in16.txt, in17.txt, in18.txt, in19.txt, in2.txt, in20.txt, in21.txt, in22.txt, in23.txt, in3.txt, in4.txt, in5.txt, in6.txt, in7.txt, in8.txt, in9.txt, sample1.txt, sample2.txt, sample3.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
in1.txt | AC | 25 ms | 8320 KB |
in10.txt | AC | 25 ms | 8320 KB |
in11.txt | AC | 25 ms | 8320 KB |
in12.txt | AC | 25 ms | 8320 KB |
in13.txt | AC | 25 ms | 8320 KB |
in14.txt | AC | 25 ms | 8320 KB |
in15.txt | AC | 25 ms | 8320 KB |
in16.txt | AC | 25 ms | 8320 KB |
in17.txt | AC | 25 ms | 8320 KB |
in18.txt | AC | 25 ms | 8320 KB |
in19.txt | AC | 25 ms | 8320 KB |
in2.txt | AC | 25 ms | 8320 KB |
in20.txt | AC | 25 ms | 8320 KB |
in21.txt | AC | 22 ms | 8320 KB |
in22.txt | AC | 23 ms | 8320 KB |
in23.txt | AC | 3 ms | 6784 KB |
in3.txt | AC | 25 ms | 8320 KB |
in4.txt | AC | 25 ms | 8320 KB |
in5.txt | AC | 24 ms | 8320 KB |
in6.txt | AC | 25 ms | 8320 KB |
in7.txt | AC | 25 ms | 8320 KB |
in8.txt | AC | 25 ms | 8320 KB |
in9.txt | AC | 25 ms | 8320 KB |
sample1.txt | AC | 3 ms | 6784 KB |
sample2.txt | AC | 3 ms | 6784 KB |
sample3.txt | AC | 3 ms | 6784 KB |