結果
| 問題 |
No.1425 Yet Another Cyclic Shifts Sorting
|
| コンテスト | |
| ユーザー |
leaf_1415
|
| 提出日時 | 2021-03-12 21:56:51 |
| 言語 | C++11(廃止可能性あり) (gcc 13.3.0) |
| 結果 |
AC
|
| 実行時間 | 28 ms / 2,000 ms |
| コード長 | 2,746 bytes |
| コンパイル時間 | 726 ms |
| コンパイル使用メモリ | 84,664 KB |
| 実行使用メモリ | 8,476 KB |
| 最終ジャッジ日時 | 2024-10-14 16:14:39 |
| 合計ジャッジ時間 | 2,973 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 48 |
コンパイルメッセージ
main.cpp: In function ‘int main()’:
main.cpp:19:47: warning: ‘q’ may be used uninitialized in this function [-Wmaybe-uninitialized]
19 | #define rep(x, s, t) for(llint (x) = (s); (x) <= (t); (x)++)
| ^~
main.cpp:115:12: note: ‘q’ was declared here
115 | ll q;
| ^
main.cpp:19:47: warning: ‘p’ may be used uninitialized in this function [-Wmaybe-uninitialized]
19 | #define rep(x, s, t) for(llint (x) = (s); (x) <= (t); (x)++)
| ^~
main.cpp:108:12: note: ‘p’ was declared here
108 | ll p;
| ^
ソースコード
#include <iostream>
#include <cstdio>
#include <cmath>
#include <ctime>
#include <cstdlib>
#include <cassert>
#include <vector>
#include <list>
#include <stack>
#include <queue>
#include <deque>
#include <map>
#include <set>
#include <bitset>
#include <string>
#include <algorithm>
#include <utility>
#include <complex>
#define rep(x, s, t) for(llint (x) = (s); (x) <= (t); (x)++)
#define reps(x, s) for(llint (x) = 0; (x) < (llint)(s).size(); (x)++)
#define chmin(x, y) (x) = min((x), (y))
#define chmax(x, y) (x) = max((x), (y))
#define sz(x) ((ll)(x).size())
#define ceil(x, y) (((x)+(y)-1) / (y))
#define all(x) (x).begin(),(x).end()
#define outl(...) dump_func(__VA_ARGS__)
#define inf 1e18
using namespace std;
typedef long long llint;
typedef long long ll;
typedef pair<ll, ll> P;
bool exceed(ll x, ll y, ll m){return x >= m / y + 1;}
struct edge{
ll to, cost;
edge(){}
edge(ll a, ll b){
to = a, cost = b;
}
};
template<typename T>
ostream& operator << (ostream& os, vector<T>& vec) {
for(int i = 0; i<vec.size(); i++) {
os << vec[i] << (i + 1 == vec.size() ? "" : " ");
}
return os;
}
template<typename T, typename U>
ostream& operator << (ostream& os, pair<T, U>& pair_var) {
os << "(" << pair_var.first << ", " << pair_var.second << ")";
return os;
}
template<typename T, typename U>
ostream& operator << (ostream& os, map<T, U>& map_var) {
for(typename map<T, U>::iterator itr = map_var.begin(); itr != map_var.end(); itr++) {
os << "(" << itr->first << ", " << itr->second << ")";
itr++;
if(itr != map_var.end()) os << ",";
itr--;
}
return os;
}
template<typename T>
ostream& operator << (ostream& os, set<T>& set_var) {
for(typename set<T>::iterator itr = set_var.begin(); itr != set_var.end(); itr++) {
os << *itr;
++itr;
if(itr != set_var.end()) os << " ";
itr--;
}
return os;
}
void dump_func() {cout << endl;}
template <class Head, class... Tail>
void dump_func(Head &&head, Tail &&... tail) {
cout << head;
if(sizeof...(Tail) > 0) cout << " ";
dump_func(std::move(tail)...);
}
ll n;
ll a[200005];
ll mx[200005];
int main(void)
{
ios::sync_with_stdio(0);
cin.tie(0);
cin >> n;
rep(i, 1, n) cin >> a[i];
bool flag = true;
rep(i, 1, n-1){
if(a[i] > a[i+1]) flag = false;
}
if(flag){
outl(0);
return 0;
}
rep(i, 1, n) mx[i] = max(mx[i-1], a[i]);
ll p;
for(int i = n; i >= 1; i--){
if(mx[i-1] > a[i]){
p = i;
break;
}
}
ll q;
rep(i, 1, p-1){
if(a[i] > a[i+1]){
q = i;
break;
}
}
vector<ll> vec;
rep(i, q+1, p) vec.push_back(a[i]);
rep(i, 1, q) vec.push_back(a[i]);
rep(i, p+1, n) vec.push_back(a[i]);
flag = true;
rep(i, 0, n-2){
if(vec[i] > vec[i+1]) flag = false;
}
if(flag) outl(1);
else outl(2);
return 0;
}
leaf_1415