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답안 #588686

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
588686 2022-07-03T20:50:39 Z MohammadAghil Swap (BOI16_swap) C++17
68 / 100
 364 ms 132668 KB 
      #include <bits/stdc++.h>
//   #pragma GCC optimize ("Ofast,unroll-loops")
// #pragma GCC target ("avx2")
    using namespace std;
  typedef long long ll;
   typedef pair<ll, ll> pp;
    #define er(args ...) cerr << __LINE__ << ": ", err(new istringstream(string(#args)), args), cerr << endl
      #define per(i,r,l) for(int i = (r); i >= (l); i--)
        #define rep(i,l,r) for(int i = (l); i < (r); i++)
           #define all(x) begin(x), end(x)
              #define sz(x) (int)(x).size()
                  #define pb push_back
                      #define ss second
                           #define ff first
                                   void err(istringstream *iss){}template<typename T,typename ...Args> void err(istringstream *iss,const T &_val, const Args&...args){string _name;*iss>>_name;if(_name.back()==',')_name.pop_back();cerr<<_name<<" = "<<_val<<", ",err(iss,args...);}
void IOS(){
     cin.tie(0) -> sync_with_stdio(0);
     // #ifndef ONLINE_JUDGE
     //      freopen("in.in", "r", stdin);
     //      freopen("out.out", "w", stdout);
     // #endif
}
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const ll mod = 998244353, maxn = 5e4 + 5, lg = 40, inf = ll(1e9) + 5;
ll pw(ll a,ll b,ll md=mod){if(!b)return 1;ll k=pw(a,b>>1ll);return k*k%md*(b&1ll?a:1)%md;}

int a[maxn], n;
vector<int> cand[maxn], dp[maxn][lg];

int get(int u, int x){
     return lower_bound(all(cand[u]), x) - begin(cand[u]);
}

vector<int> get(int r, int p, int lx, int rx){
     vector<int> cand, resl = dp[r<<1][get(r<<1, lx)], resr = dp[r<<1|1][get(r<<1|1, rx)];
     cand.reserve(sz(dp[r<<1][0]) + sz(dp[r<<1|1][0]) + 1); cand.pb(a[p]);
     int ptr1 = 0, ptr2 = 0, st = 0;
     while(ptr1 < sz(resl) || ptr2 < sz(resr)){
          int k = 1<<st;
          while(k && ptr1 < sz(resl)) cand.pb(resl[ptr1++]), k--;
          k = 1<<st;
          while(k && ptr2 < sz(resr)) cand.pb(resr[ptr2++]), k--;
          st++;
     }
     return cand;
}

void dfs(int r){
     int cnt = 0;
     if(r<<1 <= n) dfs(r<<1), cnt++;
     if(r<<1 < n) dfs(r<<1|1), cnt++;
     rep(i,0,sz(cand[r])){
          int x = cand[r][i];
          if(cnt == 0) dp[r][i].pb(a[x]);
          else if(cnt == 1){
               dp[r][i].pb(a[x]), dp[r][i].pb(a[r<<1]);
               if(a[x] > a[r<<1]) swap(dp[r][i][0], dp[r][i][1]); 
          }else{
               int lx = r<<1, rx = r<<1|1;
               if(a[x] < a[lx] && a[x] < a[rx]) dp[r][i] = get(r, x, lx, rx);
               else if(a[lx] < a[x] && a[x] < a[rx]) dp[r][i] = get(r, lx, x, rx);
               else if(a[lx] < a[rx] && a[rx] < a[x]) dp[r][i] = get(r, lx, x, rx);
               else dp[r][i] = min(get(r, rx, x, lx), get(r, rx, lx, x));
          }
     }
     if(cnt) rep(i,0,sz(cand[r<<1])) dp[r<<1][i].clear();
     if(cnt == 2) rep(i,0,sz(cand[r<<1])) dp[r<<1|1][i].clear();
}

int main(){ IOS();
     cin >> n;
     rep(i,1,n+1) cin >> a[i];
     rep(i,1,n+1){
          cand[i].pb(i);
          for(int j = i; j > 1; j >>= 1) cand[i].pb(j>>1), cand[i].pb(j^1);
          sort(all(cand[i]));
          while(sz(cand[i]) && cand[i].back() > n) cand[i].pop_back();
     }
     dfs(1);
     // rep(i,1,n+1){
     //      rep(j,0,sz(cand[i])){
     //           er(i, cand[i][j]);
     //           for(int c: dp[i][j]) cerr << c << ' '; cerr << '\n';
     //      }
     // }
     for(int c: dp[1][0]) cout << c << ' '; 
     return 0;  
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 22 ms 48468 KB Output is correct
2 Correct 22 ms 48468 KB Output is correct
3 Correct 25 ms 48388 KB Output is correct
4 Correct 24 ms 48432 KB Output is correct
5 Correct 25 ms 48364 KB Output is correct

Subtask #2
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 22 ms 48468 KB Output is correct
2 Correct 22 ms 48468 KB Output is correct
3 Correct 25 ms 48388 KB Output is correct
4 Correct 24 ms 48432 KB Output is correct
5 Correct 25 ms 48364 KB Output is correct
6 Correct 24 ms 48424 KB Output is correct
7 Correct 24 ms 48488 KB Output is correct
8 Correct 22 ms 48384 KB Output is correct
9 Correct 22 ms 48440 KB Output is correct
10 Correct 24 ms 48388 KB Output is correct

Subtask #3
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 22 ms 48468 KB Output is correct
2 Correct 22 ms 48468 KB Output is correct
3 Correct 25 ms 48388 KB Output is correct
4 Correct 24 ms 48432 KB Output is correct
5 Correct 25 ms 48364 KB Output is correct
6 Correct 24 ms 48424 KB Output is correct
7 Correct 24 ms 48488 KB Output is correct
8 Correct 22 ms 48384 KB Output is correct
9 Correct 22 ms 48440 KB Output is correct
10 Correct 24 ms 48388 KB Output is correct
11 Correct 25 ms 49288 KB Output is correct
12 Correct 30 ms 49324 KB Output is correct
13 Correct 25 ms 49236 KB Output is correct
14 Correct 28 ms 49332 KB Output is correct
15 Correct 29 ms 49336 KB Output is correct

Subtask #4
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 22 ms 48468 KB Output is correct
2 Correct 22 ms 48468 KB Output is correct
3 Correct 25 ms 48388 KB Output is correct
4 Correct 24 ms 48432 KB Output is correct
5 Correct 25 ms 48364 KB Output is correct
6 Correct 24 ms 48424 KB Output is correct
7 Correct 24 ms 48488 KB Output is correct
8 Correct 22 ms 48384 KB Output is correct
9 Correct 22 ms 48440 KB Output is correct
10 Correct 24 ms 48388 KB Output is correct
11 Correct 25 ms 49288 KB Output is correct
12 Correct 30 ms 49324 KB Output is correct
13 Correct 25 ms 49236 KB Output is correct
14 Correct 28 ms 49332 KB Output is correct
15 Correct 29 ms 49336 KB Output is correct
16 Correct 294 ms 132668 KB Output is correct
17 Correct 294 ms 132584 KB Output is correct
18 Correct 314 ms 132552 KB Output is correct
19 Correct 358 ms 132408 KB Output is correct
20 Correct 364 ms 132376 KB Output is correct

Subtask #5
0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 22 ms 48468 KB Output is correct
2 Correct 22 ms 48468 KB Output is correct
3 Correct 25 ms 48388 KB Output is correct
4 Correct 24 ms 48432 KB Output is correct
5 Correct 25 ms 48364 KB Output is correct
6 Correct 24 ms 48424 KB Output is correct
7 Correct 24 ms 48488 KB Output is correct
8 Correct 22 ms 48384 KB Output is correct
9 Correct 22 ms 48440 KB Output is correct
10 Correct 24 ms 48388 KB Output is correct
11 Correct 25 ms 49288 KB Output is correct
12 Correct 30 ms 49324 KB Output is correct
13 Correct 25 ms 49236 KB Output is correct
14 Correct 28 ms 49332 KB Output is correct
15 Correct 29 ms 49336 KB Output is correct
16 Correct 294 ms 132668 KB Output is correct
17 Correct 294 ms 132584 KB Output is correct
18 Correct 314 ms 132552 KB Output is correct
19 Correct 358 ms 132408 KB Output is correct
20 Correct 364 ms 132376 KB Output is correct
21 Runtime error 61 ms 98352 KB Execution killed with signal 11
22 Halted 0 ms 0 KB -