#479596 (C++14) No.1051 PQ Permutation

提出ソース

結果

問題	No.1051 PQ Permutation
ユーザー	ttttan2
提出日時	2020-05-09 11:10:25
言語	C++14 (gcc 12.3.0 + boost 1.83.0)
結果	AC
実行時間	188 ms / 2,000 ms
コード長	8,570 bytes
コンパイル時間	1,839 ms
コンパイル使用メモリ	180,884 KB
実行使用メモリ	16,608 KB
最終ジャッジ日時	2024-07-05 20:11:00
合計ジャッジ時間	6,329 ms
ジャッジサーバーID （参考情報）	judge4 / judge1

このコードへのチャレンジ
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テストケース

テストケース表示

入力	結果	実行時間実行使用メモリ
testcase_00	AC	2 ms 5,248 KB
testcase_01	AC	2 ms 5,376 KB
testcase_02	AC	2 ms 5,376 KB
testcase_03	AC	2 ms 5,376 KB
testcase_04	AC	2 ms 5,376 KB
testcase_05	AC	2 ms 5,376 KB
testcase_06	AC	1 ms 5,376 KB
testcase_07	AC	2 ms 5,376 KB
testcase_08	AC	2 ms 5,376 KB
testcase_09	AC	2 ms 5,376 KB
testcase_10	AC	1 ms 5,376 KB
testcase_11	AC	2 ms 5,376 KB
testcase_12	AC	2 ms 5,376 KB
testcase_13	AC	2 ms 5,376 KB
testcase_14	AC	2 ms 5,376 KB
testcase_15	AC	94 ms 16,476 KB
testcase_16	AC	108 ms 16,608 KB
testcase_17	AC	179 ms 16,608 KB
testcase_18	AC	188 ms 16,352 KB
testcase_19	AC	181 ms 16,352 KB
testcase_20	AC	141 ms 16,484 KB
testcase_21	AC	137 ms 16,608 KB
testcase_22	AC	181 ms 16,484 KB
testcase_23	AC	137 ms 16,480 KB
testcase_24	AC	139 ms 16,588 KB
testcase_25	AC	9 ms 5,376 KB
testcase_26	AC	7 ms 5,376 KB
testcase_27	AC	2 ms 5,376 KB
testcase_28	AC	18 ms 5,376 KB
testcase_29	AC	7 ms 5,376 KB
testcase_30	AC	8 ms 5,376 KB
testcase_31	AC	3 ms 5,376 KB
testcase_32	AC	7 ms 5,376 KB
testcase_33	AC	4 ms 5,376 KB
testcase_34	AC	4 ms 5,376 KB
testcase_35	AC	45 ms 9,888 KB
testcase_36	AC	44 ms 10,012 KB
testcase_37	AC	72 ms 14,464 KB
testcase_38	AC	94 ms 16,608 KB
testcase_39	AC	119 ms 15,488 KB
testcase_40	AC	102 ms 14,592 KB
testcase_41	AC	101 ms 14,464 KB
testcase_42	AC	2 ms 5,376 KB
testcase_43	AC	1 ms 5,376 KB
testcase_44	AC	2 ms 5,376 KB
testcase_45	AC	1 ms 5,376 KB
testcase_46	AC	2 ms 5,376 KB
testcase_47	AC	2 ms 5,376 KB
testcase_48	AC	163 ms 16,512 KB

権限があれば一括ダウンロードができます

コンパイルメッセージ

main.cpp: In function 'int main()':
main.cpp:26:33: warning: 'n2' may be used uninitialized [-Wmaybe-uninitialized]
   26 | #define rep(i,m,n) for(int i=m;i<n;i++)
      |                                 ^
main.cpp:278:23: note: 'n2' was declared here
  278 |                 ll n1,n2;
      |                       ^~
main.cpp:26:33: warning: 'n1' may be used uninitialized [-Wmaybe-uninitialized]
   26 | #define rep(i,m,n) for(int i=m;i<n;i++)
      |                                 ^
main.cpp:278:20: note: 'n1' was declared here
  278 |                 ll n1,n2;
      |                    ^~
main.cpp:26:33: warning: 'n2' may be used uninitialized [-Wmaybe-uninitialized]
   26 | #define rep(i,m,n) for(int i=m;i<n;i++)
      |                                 ^
main.cpp:223:23: note: 'n2' was declared here
  223 |                 ll n1,n2;
      |                       ^~
main.cpp:26:33: warning: 'n1' may be used uninitialized [-Wmaybe-uninitialized]
   26 | #define rep(i,m,n) for(int i=m;i<n;i++)
      |                                 ^
main.cpp:223:20: note: 'n1' was declared here
  223 |                 ll n1,n2;
      |                    ^~
main.cpp:26:33: warning: 'n2' may be used uninitialized [-Wmaybe-uninitialized]
   26 | #define rep(i,m,n) for(int i=m;i<n;i++)
      |                                 ^
main.cpp:175:19: note: 'n2' was declared here
  175 |             ll n1,n2;
      |                   ^~
main.cpp:26:33: warning: 'n1' may be used uninitialized [-Wmaybe-uninitialized]
   26 | #define rep(i,m,n) for(int i=m;i<n;i++)
      |                                 ^
main.cpp:175:16: note: 'n1' was declared here
  175 |             ll n1,n2;
      |                ^~

ソースコード

raw source code

#include<bits/stdc++.h>
//ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
//clock_t start=clock();clock_t end=clock();cout<<(double)(end-start)/CLOCKS_PER_SEC<<endl;
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef unsigned int ui;
typedef pair<int,int> pii;
typedef pair<pii,int> ppii;
typedef pair<int,pii> pipi;
typedef pair<ll,ll> pll;
typedef pair<pll,ll> ppll;
typedef pair<ll,pll> plpl;
typedef pair<pii,pii> P;
typedef tuple<ll,ll,ll> tl;
typedef pair<double,double> pdd;
typedef vector<vector<ll>> mat;
ll mod=1000000007;
ll mod2=998244353;
ll mod3=1000003;
ll mod4=998244853;
ll mod5=1000000009;
ll inf=1LL<<62;
double pi=3.141592653589793238462643383279L;
double eps=1e-14;
#define rep(i,m,n) for(int i=m;i<n;i++)
#define rrep(i,n,m) for(ll i=n;i>=m;i--)
#define srep(itr,st) for(auto itr=st.begin();itr!=st.end();itr++)
#define mrep(itr,mp) for(auto& itr:mp)
#define Max(a,b) a=max(a,b)
#define Min(a,b) a=min(a,b)
int dh[4]={1,-1,0,0};
int dw[4]={0,0,1,-1};
int ddh[8]={-1,-1,-1,0,0,1,1,1};
int ddw[8]={-1,0,1,-1,1,-1,0,1};
struct custom_hash {
    static uint64_t splitmix64(uint64_t x) {
        // http://xorshift.di.unimi.it/splitmix64.c
        x += 0x9e3779b97f4a7c15;
        x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;
        x = (x ^ (x >> 27)) * 0x94d049bb133111eb;
        return x ^ (x >> 31);
    }

    size_t operator()(uint64_t x) const {
        static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count();
        return splitmix64(x + FIXED_RANDOM);
    }
};
#define umh unordered_map<ll,ll,custom_hash>
ll gcd(ll a,ll b){
    if(a<b)swap(a,b);
    if(b==0)return a;
    if(a%b==0)return b;
    return gcd(b,a%b);
}
ll lcm(ll a,ll b){
    ll c=gcd(a,b);
    return a*b/c;
}
ll Pow(ll n,ll k){
    ll ret=1;
    ll now=n;
    while(k>0){
        if(k&1)ret*=now;
        now*=now;
        k/=2;
    }
    return ret;
}
ll beki(ll n,ll k,ll md){
  ll ret=1;
  ll now=n;
    now%=md;
  while(k>0){
    if(k%2==1){
      ret*=now;
      ret%=md;
    }
    now*=now;
    now%=md;
    k/=2;
  }
  return ret;
}
ll gyaku(ll n,ll md){
  return beki(n,md-2,md);
}
ll poc(ll n){
    ll ret=0;
    ll u=n;
    while(u>0){
        ret+=u%2;
        u/=2;
        
    }
    return ret;
}



int main(){
    ios::sync_with_stdio(false);cin.tie(0);
    ll n,p,q;cin>>n>>p>>q;
    ll a[n];
    rep(i,0,n)cin>>a[i];
    bool bo[n];
    fill(bo,bo+n,false);
    bo[n-1]=true;
    rrep(i,n-2,0){
        if(a[i]>a[i+1])bo[i]=true;
        else{
            break;
        }
    }
    vector<ll> ans;
    set<ll> st;
    rep(i,1,n+1)st.insert(i);
    rep(i,0,n-1){
        if(bo[i+1]){
            auto it=st.lower_bound(a[i]+1);
            if(it==st.end()){
                cout<<-1<<endl;
                return 0;
            }
            ll now=*it;
            if(now==p){
                ans.push_back(now);
                st.erase(now);
                srep(itr,st)ans.push_back(*itr);
                
            }
            else if(now==q){
                it=st.lower_bound(now+1);
                if(it==st.end()){
                    st.erase(q);
                    for(;;){
                        if(ans.size()==0)break;
                        int la=ans.back();
                        auto itr2=st.lower_bound(la);
                        if(itr2==st.end()){
                            ans.pop_back();
                            st.insert(la);
                        }
                        else{
                            ll tt=*itr2;
                            ans.pop_back();
                            ans.push_back(tt);
                            st.erase(tt);
                            st.insert(la);
                            break;
                        }
                    }
                    if(ans.size()==0){
                        cout<<-1<<endl;
                        return 0;
                    }
                    st.insert(q);
                    srep(itr,st)ans.push_back(*itr);
                }
                else{
                    now=*it;
                ans.push_back(now);
                st.erase(now);
                srep(itr,st)ans.push_back(*itr);
                }
            }
            else{
                ans.push_back(now);
                st.erase(now);
                srep(itr,st){
                    ans.push_back(*itr);
                }
            }
            ll n1,n2;
            rep(j,0,ans.size()){
                if(ans[j]==p)n1=j;
                else if(ans[j]==q)n2=j;
            }
            if(n1>n2){
                rep(j,n2,n1)ans[j]=ans[j+1];
                ans[n1]=q;
            }
            
            break;
        }
        else{
            ll now=a[i];
            if(now==q){
                auto it=st.lower_bound(now+1);
                
                if(it==st.end()){
                    st.erase(q);
                    for(;;){
                        if(ans.size()==0)break;
                        int la=ans.back();
                        auto itr2=st.lower_bound(la);
                        if(itr2==st.end()){
                            ans.pop_back();
                            st.insert(la);
                        }
                        else{
                            ll tt=*itr2;
                            ans.pop_back();
                            ans.push_back(tt);
                            st.erase(tt);
                            st.insert(la);
                            break;
                        }
                    }
                    if(ans.size()==0){
                        cout<<-1<<endl;
                        return 0;
                    }
                    st.insert(q);
                    srep(itr,st)ans.push_back(*itr);
                }
                else{now=*it;
                ans.push_back(now);
                st.erase(now);
                srep(itr,st)ans.push_back(*itr);
                }
                ll n1,n2;
                rep(j,0,ans.size()){
                    if(ans[j]==p)n1=j;
                    else if(ans[j]==q)n2=j;
                }
                
                if(n1>n2){
                    rep(j,n2,n1)ans[j]=ans[j+1];
                    ans[n1]=q;
                }
                break;
                
            }
            else if(now==p){
                ans.push_back(now);
                st.erase(now);
                rep(j,i+1,n){
                    if(bo[j+1]){
                        auto it=st.lower_bound(a[j]+1);
                        if(it==st.end()){
                            for(;;){
                                if(ans.size()==0)break;
                                int la=ans.back();
                                auto itr2=st.lower_bound(la);
                                if(itr2==st.end()){
                                    ans.pop_back();
                                    st.insert(la);
                                }
                                else{
                                    ll tt=*itr2;
                                    ans.pop_back();
                                    ans.push_back(tt);
                                    st.erase(tt);
                                    st.insert(la);
                                    break;
                                }
                            }
                            if(ans.size()==0){
                                cout<<-1<<endl;
                                return 0;
                            }
                            srep(itr,st)ans.push_back(*itr);
                        }
                        else{ll ne=*it;
                        ans.push_back(ne);
                        st.erase(ne);
                        srep(itr,st)ans.push_back(*itr);
                        }
                        break;
                    }
                    else{
                        ans.push_back(a[j]);
                        st.erase(a[j]);
                    }
                }
                ll n1,n2;
                rep(j,0,ans.size()){
                    if(ans[j]==p)n1=j;
                    else if(ans[j]==q)n2=j;
                }
                if(n1>n2){
                    rep(j,n2,n1)ans[j]=ans[j+1];
                    ans[n1]=q;
                }
                break;
            }
            else{
                ans.push_back(a[i]);
                st.erase(a[i]);
            }
        }
    }
    rep(i,0,ans.size())cout<<ans[i]<<" ";
    cout<<endl;
}

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結果

テストケース

コンパイルメッセージ

ソースコード