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답안 #165280

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
165280 2019-11-26T10:42:52 Z cbertram Growing Vegetable is Fun 3 (JOI19_ho_t3) C++14
60 / 100
 500 ms 701800 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long int ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef vector<bool> vb;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<pii> vpii;
typedef vector<pll> vpll;
typedef vector<string> vs;
typedef vector<vb> vvb;
typedef vector<vvb> vvvb;
typedef vector<vvvb> vvvvb;
typedef vector<vi> vvi;
typedef vector<vvi> vvvi;
typedef vector<vvvi> vvvvi;
typedef vector<vll> vvll;
#define all(x) x.begin(), x.end()
#define rep(i,a,b) for(int i = a; i < b; i++)
#define relax(a, b) a = min(a,b)

int posNow(vvi pos, vvi behind, int c, int i, int R, int G, int Y) {
  int p = pos[c][i];
  return p+max(0,R-behind[0][p])+max(0,G-behind[1][p])+max(0,Y-behind[2][p]);
}

int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);

  int N;
  cin >> N;
  vi S(N);
  string sS;
  cin >> sS;
  rep(n,0,N) {
    switch(sS[n]) {
    case 'R': S[n] = 0; break;
    case 'G': S[n] = 1; break;
    case 'Y': S[n] = 2; break;
    }
  }
  vvi pos(3, vi(0));
  rep(n,0,N) pos[S[n]].push_back(n);
  vvi behind(3, vi(N+1));
  rep(c,0,3) {
    int i = 0;
    rep(n,0,N+1) {
      behind[c][n] = i;
      if(i < (int)pos[c].size() && pos[c][i] == n) i++;
    }
  }
  vvvvi steps(N+1, vvvi(N+1, vvi(N+1, vi(3, 1000000000))));
  vvvvb vis(N+1, vvvb(N+1, vvb(N+1, vb(3))));
  steps[0][0][0][0] = 0;
  steps[0][0][0][1] = 0;
  steps[0][0][0][2] = 0;
  queue<int> q;
  q.push(0);
  q.push(1);
  q.push(2);
  while(!q.empty()) {
    int front = q.front();
    q.pop();
    int R = front/3/N/N;
    int G = (front/3/N)%N;
    int Y = (front/3)%N;
    int C = front%3;
    int here = steps[R][G][Y][C];
    int used = R+G+Y;
    if(here == 1000000000) continue;
    if(R < (int)pos[0].size() && !vis[R+1][G][Y][0]) {
      vis[R+1][G][Y][0] = true;
      q.push((R+1)*N*N*3 + G*N*3 + Y*3 + 0);
    }
    if(G < (int)pos[1].size() && !vis[R][G+1][Y][1]) {
      vis[R][G+1][Y][1] = true;
      q.push(R*N*N*3 + (G+1)*N*3 + Y*3 + 1);
    }
    if(Y < (int)pos[2].size() && !vis[R][G][Y+1][2]) {
      vis[R][G][Y+1][2] = true;
      q.push(R*N*N*3 + G*N*3 + (Y+1)*3 + 2);
    }
    //cerr << "(R,G,Y,C) = ("<<R<<", "<<G<<", "<<Y<<", "<<C<<") "<<here<<"\n";
    if(R < (int)pos[0].size() && C != 0) relax(steps[R+1][G][Y][0], here+posNow(pos, behind, 0, R, R, G, Y)-used);
    if(G < (int)pos[1].size() && C != 1) relax(steps[R][G+1][Y][1], here+posNow(pos, behind, 1, G, R, G, Y)-used);
    if(Y < (int)pos[2].size() && C != 2) relax(steps[R][G][Y+1][2], here+posNow(pos, behind, 2, Y, R, G, Y)-used);
  }

  int res = 1000000000;
  relax(res, steps[(int)pos[0].size()][(int)pos[1].size()][(int)pos[2].size()][0]);
  relax(res, steps[(int)pos[0].size()][(int)pos[1].size()][(int)pos[2].size()][1]);
  relax(res, steps[(int)pos[0].size()][(int)pos[1].size()][(int)pos[2].size()][2]);
  if(res == 1000000000)
    cout << "-1\n";
  else
    cout << res << '\n';
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 3 ms 888 KB Output is correct
6 Correct 3 ms 888 KB Output is correct
7 Correct 3 ms 888 KB Output is correct
8 Correct 3 ms 892 KB Output is correct
9 Correct 3 ms 888 KB Output is correct
10 Correct 3 ms 888 KB Output is correct
11 Correct 3 ms 888 KB Output is correct
12 Correct 3 ms 888 KB Output is correct
13 Correct 3 ms 888 KB Output is correct
14 Correct 3 ms 760 KB Output is correct
15 Correct 3 ms 888 KB Output is correct
16 Correct 3 ms 888 KB Output is correct
17 Correct 3 ms 760 KB Output is correct

Subtask #2
55.0 / 55.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 3 ms 888 KB Output is correct
6 Correct 3 ms 888 KB Output is correct
7 Correct 3 ms 888 KB Output is correct
8 Correct 3 ms 892 KB Output is correct
9 Correct 3 ms 888 KB Output is correct
10 Correct 3 ms 888 KB Output is correct
11 Correct 3 ms 888 KB Output is correct
12 Correct 3 ms 888 KB Output is correct
13 Correct 3 ms 888 KB Output is correct
14 Correct 3 ms 760 KB Output is correct
15 Correct 3 ms 888 KB Output is correct
16 Correct 3 ms 888 KB Output is correct
17 Correct 3 ms 760 KB Output is correct
18 Correct 65 ms 29252 KB Output is correct
19 Correct 66 ms 29204 KB Output is correct
20 Correct 64 ms 29304 KB Output is correct
21 Correct 65 ms 29284 KB Output is correct
22 Correct 60 ms 29304 KB Output is correct
23 Correct 65 ms 29276 KB Output is correct
24 Correct 59 ms 29304 KB Output is correct
25 Correct 52 ms 29352 KB Output is correct
26 Correct 51 ms 29304 KB Output is correct
27 Correct 61 ms 29304 KB Output is correct
28 Correct 67 ms 29408 KB Output is correct
29 Correct 67 ms 29248 KB Output is correct
30 Correct 65 ms 29432 KB Output is correct
31 Correct 65 ms 29284 KB Output is correct
32 Correct 65 ms 29304 KB Output is correct
33 Correct 50 ms 27896 KB Output is correct
34 Correct 50 ms 27896 KB Output is correct
35 Correct 58 ms 26616 KB Output is correct
36 Correct 65 ms 27896 KB Output is correct
37 Correct 55 ms 25336 KB Output is correct
38 Correct 65 ms 29380 KB Output is correct
39 Correct 76 ms 29328 KB Output is correct
40 Correct 49 ms 27896 KB Output is correct
41 Correct 55 ms 29276 KB Output is correct

Subtask #3
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Execution timed out 1111 ms 701800 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #4
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 3 ms 888 KB Output is correct
6 Correct 3 ms 888 KB Output is correct
7 Correct 3 ms 888 KB Output is correct
8 Correct 3 ms 892 KB Output is correct
9 Correct 3 ms 888 KB Output is correct
10 Correct 3 ms 888 KB Output is correct
11 Correct 3 ms 888 KB Output is correct
12 Correct 3 ms 888 KB Output is correct
13 Correct 3 ms 888 KB Output is correct
14 Correct 3 ms 760 KB Output is correct
15 Correct 3 ms 888 KB Output is correct
16 Correct 3 ms 888 KB Output is correct
17 Correct 3 ms 760 KB Output is correct
18 Correct 65 ms 29252 KB Output is correct
19 Correct 66 ms 29204 KB Output is correct
20 Correct 64 ms 29304 KB Output is correct
21 Correct 65 ms 29284 KB Output is correct
22 Correct 60 ms 29304 KB Output is correct
23 Correct 65 ms 29276 KB Output is correct
24 Correct 59 ms 29304 KB Output is correct
25 Correct 52 ms 29352 KB Output is correct
26 Correct 51 ms 29304 KB Output is correct
27 Correct 61 ms 29304 KB Output is correct
28 Correct 67 ms 29408 KB Output is correct
29 Correct 67 ms 29248 KB Output is correct
30 Correct 65 ms 29432 KB Output is correct
31 Correct 65 ms 29284 KB Output is correct
32 Correct 65 ms 29304 KB Output is correct
33 Correct 50 ms 27896 KB Output is correct
34 Correct 50 ms 27896 KB Output is correct
35 Correct 58 ms 26616 KB Output is correct
36 Correct 65 ms 27896 KB Output is correct
37 Correct 55 ms 25336 KB Output is correct
38 Correct 65 ms 29380 KB Output is correct
39 Correct 76 ms 29328 KB Output is correct
40 Correct 49 ms 27896 KB Output is correct
41 Correct 55 ms 29276 KB Output is correct
42 Correct 2 ms 376 KB Output is correct
43 Execution timed out 1111 ms 701800 KB Time limit exceeded
44 Halted 0 ms 0 KB -