oj.uz

답안 #209253

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
209253 2020-03-13T13:53:19 Z AryaKnight Growing Vegetable is Fun 3 (JOI19_ho_t3) C++14
75 / 100
 500 ms 263032 KB 
//#pragma GCC optimize("Ofast","unroll-loops","omit-frame-pointer","inline") //Optimization flags
//#pragma GCC option("arch=native","tune=native","no-zero-upper") //Enable AVX
//#pragma GCC target("avx2")  //Enable AVX
#include<bits/stdc++.h>
using namespace std;

#define all(a) begin(a),end(a)
#define F first
#define S second
#define pb push_back
#define mp make_pair
typedef long long ll;
typedef vector<int> vi;
typedef pair<int,int> pi;

#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif

void clr(auto &a,int n){
  a.clear();
  a.resize(n);
}

template <typename A, typename B>
istream& operator>>(istream& input,pair<A,B>& x) {
  input>>x.F>>x.S;
  return input;
}

template <typename A>
istream& operator>>(istream& input,vector<A>& x) {
  for(auto& i:x)
    input>>i;
  return input;
}

template<typename A>
ostream& operator<<(ostream& output,vector<A>& x) {
  for(auto& i:x)
    output<<i<<' ';
  return output;
}

template<typename T>
vector<pair<T,int>> getvec(int n){
  vector<pair<T,int>>a(n);
  for(int i=0;i<a.size();i++){
    cin>>a[i].F;
    a[i].S=i;
  }
  return a;
}

const int mod=1e9+7;

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

int mul(int a,int b){
  return ((a)*1ll*(b))%mod;
}

void add(int &a,int b){
  a+=b;
  if(a>=mod)a-=mod;
}

int sub(int a,int b){
  a-=b;
  if(a<0){
    a+=mod;
  }
  return a;
}

int powz(int a,int b){
  int res=1;
  while(b){
    if(b&1){
      res=mul(res,a);
    }
    b/=2;
    a=mul(a,a);
  }
  return res;
}

const int N=405;

int dp[2][405][405][3];
vector<int>adj[3];
struct ordered_set {
  int sz = 0, bit[N];
  
  int size() {
    return sz;
  }
  
  void update(int k, int x) {
    k++;
    while (k < N) {
      bit[k] += x;
      k += k & -k;
    }
    sz += x;
  }
  
  int find_by_order(int k) {
    int ans = 0, sum = 0;
    for (int j = 17; j >= 0; --j) {
      ans += 1 << j;
      if (ans < N && sum + bit[ans] < k) {
	sum += bit[ans];
      } else {
	ans -= 1 << j;
      }
    }
    return ans + 1;
  }
  
  int order_of_key(int k) {
    k++;
    int ans = 0;
    while (k >= 1) {
      ans += bit[k];
      k -= k & -k;
    }
    return ans - 1;
  }
}st[405][405];

void solve(){
  int n;
  cin>>n;
  string s;
  cin>>s;
  for(int i=0;i<s.length();i++){
    if(s[i]=='R'){
      adj[0].pb(i);
    }
    else if(s[i]=='G'){
      adj[1].pb(i);
    }
    else{
      adj[2].pb(i);
    }
  }
  int mx=max({(int)adj[0].size(),(int)adj[1].size(),(int)adj[2].size()});
  if(mx*2>(n+10)){
    cout<<-1;
    return;
  }
  for(int i=0;i<=adj[0].size();i++){
    for(int j=0;j<=adj[1].size();j++){
      for(int k=0;k<n;k++){
	st[i][j].update(k,1);
      }
      for(int k=0;k<i;k++){
	st[i][j].update(adj[0][k],-1);
      }
      for(int k=0;k<j;k++){
	st[i][j].update(adj[1][k],-1);
      }
    }
  }
  for(int i=0;i<2;i++){
    for(int j=0;j<=adj[0].size();j++){
      for(int k=0;k<=adj[1].size();k++){
	for(int l=0;l<3;l++){
	  dp[i][j][k][l]=1e9;
	}
      }
    }
  }
  dp[0][0][0][0]=0;
  dp[0][0][0][1]=0;
  dp[0][0][0][2]=0;
  for(int i=0;i<n;i++){
    for(int j=0;j<=min(i,(int)adj[0].size());j++){
      for(int k=0;k<=min(i,(int)adj[1].size());k++){
	if(i-(j+k)<0){
	  break;
	}
	for(int l=0;l<3;l++){
	  if(dp[0][j][k][l]==1e9){
	    continue;
	  }
	  for(int put=0;put<3;put++){
	    if(put==l){
	      continue;
	    }
	    if(put==0){
	      if(j+1>adj[0].size()){
		continue;
	      }
	      int fnd=st[j][k].order_of_key(adj[0][j]);
	      dp[1][j+1][k][0]=min(dp[1][j+1][k][0],dp[0][j][k][l]+fnd);
	    }
	    else if(put==1){
	      if(k+1>adj[1].size()){
		continue;
	      }
	      int fnd=st[j][k].order_of_key(adj[1][k]);
	      dp[1][j][k+1][1]=min(dp[1][j][k+1][1],dp[0][j][k][l]+fnd);
	    }
	    else{
	      if((i-(j+k)+1)>adj[2].size()){
		continue;
	      }
	      int fnd=st[j][k].order_of_key(adj[2][i-(j+k)]);
	      dp[1][j][k][2]=min(dp[1][j][k][2],dp[0][j][k][l]+fnd);
	    }
	  }
	}
      }
    }
    for(int j=0;j<=min(i+1,(int)adj[0].size());j++){
      for(int k=0;k<=min(i+1,(int)adj[1].size());k++){
	if(i-(j+k)<0){
	  break;
	}
	if(i+1-(j+k)>adj[2].size()){
	  continue;
	}
	st[j][k].update(adj[2][i-(j+k)],-1);
      }
    }
    for(int j=0;j<=(int)adj[0].size();j++){
      for(int k=0;k<=(int)adj[1].size();k++){
	for(int l=0;l<3;l++){
	  dp[0][j][k][l]=dp[1][j][k][l];
	  dp[1][j][k][l]=1e9;
	}
      }
    }
  }
  int ans=1e9;
  ans=min(ans,dp[0][adj[0].size()][adj[1].size()][0]);
  ans=min(ans,dp[0][adj[0].size()][adj[1].size()][1]);
  ans=min(ans,dp[0][adj[0].size()][adj[1].size()][2]);
  if(ans==1e9){
    ans=-1;
  }
  cout<<ans;  
}

signed main(){
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  int tc=1;
  //cin>>tc;
  for(int _=0;_<tc;_++){
    // cout<<"Case #"<<_+1<<": ";
    solve();
    if(_!=tc-1){
      cout<<'\n';
    }
  }
}

Compilation message

joi2019_ho_t3.cpp: In function 'void solve()':
joi2019_ho_t3.cpp:139:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=0;i<s.length();i++){
               ~^~~~~~~~~~~
joi2019_ho_t3.cpp:155:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=0;i<=adj[0].size();i++){
               ~^~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:156:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int j=0;j<=adj[1].size();j++){
                 ~^~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:169:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int j=0;j<=adj[0].size();j++){
                 ~^~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:170:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       for(int k=0;k<=adj[1].size();k++){
                   ~^~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:195:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
        if(j+1>adj[0].size()){
           ~~~^~~~~~~~~~~~~~
joi2019_ho_t3.cpp:202:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
        if(k+1>adj[1].size()){
           ~~~^~~~~~~~~~~~~~
joi2019_ho_t3.cpp:209:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
        if((i-(j+k)+1)>adj[2].size()){
           ~~~~~~~~~~~^~~~~~~~~~~~~~
joi2019_ho_t3.cpp:224:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  if(i+1-(j+k)>adj[2].size()){
     ~~~~~~~~~^~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 122 ms 260984 KB Output is correct
2 Correct 118 ms 260984 KB Output is correct
3 Correct 115 ms 260984 KB Output is correct
4 Correct 121 ms 261112 KB Output is correct
5 Correct 120 ms 260984 KB Output is correct
6 Correct 115 ms 261112 KB Output is correct
7 Correct 114 ms 260984 KB Output is correct
8 Correct 122 ms 260984 KB Output is correct
9 Correct 116 ms 260984 KB Output is correct
10 Correct 117 ms 261112 KB Output is correct
11 Correct 119 ms 261112 KB Output is correct
12 Correct 123 ms 260984 KB Output is correct
13 Correct 120 ms 260984 KB Output is correct
14 Correct 118 ms 260984 KB Output is correct
15 Correct 126 ms 260960 KB Output is correct
16 Correct 116 ms 261112 KB Output is correct
17 Correct 127 ms 261112 KB Output is correct

Subtask #2
55.0 / 55.0

# 결과 실행 시간 메모리 Grader output
1 Correct 122 ms 260984 KB Output is correct
2 Correct 118 ms 260984 KB Output is correct
3 Correct 115 ms 260984 KB Output is correct
4 Correct 121 ms 261112 KB Output is correct
5 Correct 120 ms 260984 KB Output is correct
6 Correct 115 ms 261112 KB Output is correct
7 Correct 114 ms 260984 KB Output is correct
8 Correct 122 ms 260984 KB Output is correct
9 Correct 116 ms 260984 KB Output is correct
10 Correct 117 ms 261112 KB Output is correct
11 Correct 119 ms 261112 KB Output is correct
12 Correct 123 ms 260984 KB Output is correct
13 Correct 120 ms 260984 KB Output is correct
14 Correct 118 ms 260984 KB Output is correct
15 Correct 126 ms 260960 KB Output is correct
16 Correct 116 ms 261112 KB Output is correct
17 Correct 127 ms 261112 KB Output is correct
18 Correct 119 ms 261112 KB Output is correct
19 Correct 123 ms 261240 KB Output is correct
20 Correct 121 ms 261240 KB Output is correct
21 Correct 128 ms 261204 KB Output is correct
22 Correct 120 ms 261240 KB Output is correct
23 Correct 119 ms 261240 KB Output is correct
24 Correct 121 ms 261112 KB Output is correct
25 Correct 128 ms 260984 KB Output is correct
26 Correct 120 ms 261240 KB Output is correct
27 Correct 117 ms 261240 KB Output is correct
28 Correct 120 ms 261112 KB Output is correct
29 Correct 121 ms 261240 KB Output is correct
30 Correct 125 ms 261372 KB Output is correct
31 Correct 121 ms 261112 KB Output is correct
32 Correct 121 ms 261112 KB Output is correct
33 Correct 122 ms 261240 KB Output is correct
34 Correct 119 ms 261240 KB Output is correct
35 Correct 120 ms 261240 KB Output is correct
36 Correct 119 ms 261112 KB Output is correct
37 Correct 121 ms 261112 KB Output is correct
38 Correct 120 ms 261112 KB Output is correct
39 Correct 121 ms 261116 KB Output is correct
40 Correct 121 ms 260960 KB Output is correct
41 Correct 117 ms 260984 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 119 ms 260984 KB Output is correct
2 Correct 419 ms 263032 KB Output is correct
3 Correct 423 ms 262904 KB Output is correct
4 Correct 433 ms 263032 KB Output is correct
5 Correct 436 ms 262904 KB Output is correct
6 Correct 439 ms 262904 KB Output is correct
7 Correct 431 ms 262904 KB Output is correct
8 Correct 440 ms 262904 KB Output is correct
9 Correct 435 ms 262904 KB Output is correct
10 Correct 439 ms 262904 KB Output is correct
11 Correct 428 ms 263032 KB Output is correct
12 Correct 170 ms 262008 KB Output is correct
13 Correct 235 ms 262264 KB Output is correct
14 Correct 306 ms 262624 KB Output is correct
15 Correct 430 ms 262904 KB Output is correct
16 Correct 430 ms 262904 KB Output is correct

Subtask #4
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 122 ms 260984 KB Output is correct
2 Correct 118 ms 260984 KB Output is correct
3 Correct 115 ms 260984 KB Output is correct
4 Correct 121 ms 261112 KB Output is correct
5 Correct 120 ms 260984 KB Output is correct
6 Correct 115 ms 261112 KB Output is correct
7 Correct 114 ms 260984 KB Output is correct
8 Correct 122 ms 260984 KB Output is correct
9 Correct 116 ms 260984 KB Output is correct
10 Correct 117 ms 261112 KB Output is correct
11 Correct 119 ms 261112 KB Output is correct
12 Correct 123 ms 260984 KB Output is correct
13 Correct 120 ms 260984 KB Output is correct
14 Correct 118 ms 260984 KB Output is correct
15 Correct 126 ms 260960 KB Output is correct
16 Correct 116 ms 261112 KB Output is correct
17 Correct 127 ms 261112 KB Output is correct
18 Correct 119 ms 261112 KB Output is correct
19 Correct 123 ms 261240 KB Output is correct
20 Correct 121 ms 261240 KB Output is correct
21 Correct 128 ms 261204 KB Output is correct
22 Correct 120 ms 261240 KB Output is correct
23 Correct 119 ms 261240 KB Output is correct
24 Correct 121 ms 261112 KB Output is correct
25 Correct 128 ms 260984 KB Output is correct
26 Correct 120 ms 261240 KB Output is correct
27 Correct 117 ms 261240 KB Output is correct
28 Correct 120 ms 261112 KB Output is correct
29 Correct 121 ms 261240 KB Output is correct
30 Correct 125 ms 261372 KB Output is correct
31 Correct 121 ms 261112 KB Output is correct
32 Correct 121 ms 261112 KB Output is correct
33 Correct 122 ms 261240 KB Output is correct
34 Correct 119 ms 261240 KB Output is correct
35 Correct 120 ms 261240 KB Output is correct
36 Correct 119 ms 261112 KB Output is correct
37 Correct 121 ms 261112 KB Output is correct
38 Correct 120 ms 261112 KB Output is correct
39 Correct 121 ms 261116 KB Output is correct
40 Correct 121 ms 260960 KB Output is correct
41 Correct 117 ms 260984 KB Output is correct
42 Correct 119 ms 260984 KB Output is correct
43 Correct 419 ms 263032 KB Output is correct
44 Correct 423 ms 262904 KB Output is correct
45 Correct 433 ms 263032 KB Output is correct
46 Correct 436 ms 262904 KB Output is correct
47 Correct 439 ms 262904 KB Output is correct
48 Correct 431 ms 262904 KB Output is correct
49 Correct 440 ms 262904 KB Output is correct
50 Correct 435 ms 262904 KB Output is correct
51 Correct 439 ms 262904 KB Output is correct
52 Correct 428 ms 263032 KB Output is correct
53 Correct 170 ms 262008 KB Output is correct
54 Correct 235 ms 262264 KB Output is correct
55 Correct 306 ms 262624 KB Output is correct
56 Correct 430 ms 262904 KB Output is correct
57 Correct 430 ms 262904 KB Output is correct
58 Correct 498 ms 262136 KB Output is correct
59 Execution timed out 543 ms 262392 KB Time limit exceeded
60 Halted 0 ms 0 KB -