oj.uz

답안 #299027

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
299027 2020-09-14T12:25:37 Z erd1 열대 식물원 (Tropical Garden) (IOI11_garden) C++14
100 / 100
 2873 ms 14136 KB 
#include "garden.h"
#include "gardenlib.h"

#include<bits/stdc++.h>
using namespace std;
#define ff first
#define ss second
#define all(x) (x).begin(), (x).end()
#define pb push_back
typedef int64_t lld;
typedef pair<int, int> pii;

vector<pii> to;
vector<int> arr, arr2, tmp1, tmp2;

void calc(int n, int b){
  tmp2.resize(n); tmp1.resize(n);
  iota(all(tmp1), 0); arr2 = arr;
  do{
    //for(auto i: tmp1)cout << i << " "; cout << endl;
    //for(auto i: arr2)cout << i << " "; cout << endl;
    if(b&1)
      for(int i = 0; i < n; i++)tmp1[i] = arr2[tmp1[i]];
    for(int i = 0; i < n; i++)tmp2[i] = arr2[arr2[i]];
    arr2 = tmp2;
  }while(b>>=1);
}

vector<int> ans1, ans2, gone;

void dfs(int i, int P, vector<int>& ans){
  if(arr[i] == P){
    ans[i] = 1;
    return;
  }
  if(!gone[arr[i]]){
    gone[arr[i]] = true;
    dfs(arr[i], P, ans);
  }
  if(ans[arr[i]] != INT_MAX)ans[i] = ans[arr[i]]+1;
}

void count_routes(int N, int M, int P, int R[][2], int Q, int G[]) {
  to.resize(N, {-1, -1}); arr.resize(2*N);
  for(int i = 0; i < M; i++){
    if(to[R[i][0]].ff == -1)to[R[i][0]].ff = R[i][1];
    else if(to[R[i][0]].ss == -1)to[R[i][0]].ss = R[i][1];
    if(to[R[i][1]].ff == -1)to[R[i][1]].ff = R[i][0];
    else if(to[R[i][1]].ss == -1)to[R[i][1]].ss = R[i][0];
  }
  for(int i = 0; i < N; i++){
    if(to[i].ss == -1)to[i].ss = to[i].ff;
    arr[2*i] = 2*to[i].ff + (to[to[i].ff].ff == i);
    arr[2*i+1] = 2*to[i].ss + (to[to[i].ss].ff == i);
  }
  //for(auto i: to)cout << i.ff << " " << i.ss << "  "; cout << endl;
  //for(auto i: arr)cout << i << " "; cout << endl;
  ans1.resize(2*N, INT_MAX); ans2.resize(2*N, INT_MAX); gone.resize(2*N, 0);
  for(int i = 0; i < 2*N; i++) if(!gone[i])dfs(i, 2*P, ans1);
  fill(all(gone), 0);
  for(int i = 0; i < 2*N; i++) if(!gone[i])dfs(i, 2*P+1, ans2);
  //for(auto i: ans1)cout << i << " "; cout << endl;
  //for(auto i: ans2)cout << i << " "; cout << endl;
  int d1 = 0, d2 = 0; swap(ans1[2*P], d1); swap(ans2[2*P+1], d2);
  for(int j=0; j<Q; j++){
    //for(auto i: tmp1)cout << i << " "; cout << endl;
    int ans = 0;
    for(int i = 0; i < N; i++)
      if(ans1[2*i] <= G[j] && (G[j] - ans1[2*i])%d1 == 0 || ans2[2*i] <= G[j] && (G[j] - ans2[2*i])%d2 == 0)ans++;
    answer(ans);
  }
}

Compilation message

garden.cpp: In function 'void count_routes(int, int, int, int (*)[2], int, int*)':
garden.cpp:69:28: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   69 |       if(ans1[2*i] <= G[j] && (G[j] - ans1[2*i])%d1 == 0 || ans2[2*i] <= G[j] && (G[j] - ans2[2*i])%d2 == 0)ans++;

Subtask #1
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 288 KB Output is correct
6 Correct 1 ms 512 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 4 ms 512 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 288 KB Output is correct
6 Correct 1 ms 512 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 4 ms 512 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 11 ms 1664 KB Output is correct
12 Correct 23 ms 2560 KB Output is correct
13 Correct 34 ms 9848 KB Output is correct
14 Correct 71 ms 6904 KB Output is correct
15 Correct 76 ms 7032 KB Output is correct
16 Correct 55 ms 5240 KB Output is correct
17 Correct 53 ms 4472 KB Output is correct
18 Correct 20 ms 2432 KB Output is correct
19 Correct 70 ms 6932 KB Output is correct
20 Correct 64 ms 7024 KB Output is correct
21 Correct 58 ms 5112 KB Output is correct
22 Correct 55 ms 4472 KB Output is correct
23 Correct 74 ms 7672 KB Output is correct

Subtask #3
31.0 / 31.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 288 KB Output is correct
6 Correct 1 ms 512 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 4 ms 512 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 11 ms 1664 KB Output is correct
12 Correct 23 ms 2560 KB Output is correct
13 Correct 34 ms 9848 KB Output is correct
14 Correct 71 ms 6904 KB Output is correct
15 Correct 76 ms 7032 KB Output is correct
16 Correct 55 ms 5240 KB Output is correct
17 Correct 53 ms 4472 KB Output is correct
18 Correct 20 ms 2432 KB Output is correct
19 Correct 70 ms 6932 KB Output is correct
20 Correct 64 ms 7024 KB Output is correct
21 Correct 58 ms 5112 KB Output is correct
22 Correct 55 ms 4472 KB Output is correct
23 Correct 74 ms 7672 KB Output is correct
24 Correct 3 ms 388 KB Output is correct
25 Correct 95 ms 1652 KB Output is correct
26 Correct 132 ms 2560 KB Output is correct
27 Correct 2518 ms 10752 KB Output is correct
28 Correct 990 ms 8496 KB Output is correct
29 Correct 2873 ms 8696 KB Output is correct
30 Correct 1620 ms 6776 KB Output is correct
31 Correct 1683 ms 6040 KB Output is correct
32 Correct 135 ms 2808 KB Output is correct
33 Correct 969 ms 8500 KB Output is correct
34 Correct 2829 ms 8680 KB Output is correct
35 Correct 1720 ms 6656 KB Output is correct
36 Correct 1939 ms 6136 KB Output is correct
37 Correct 693 ms 9464 KB Output is correct
38 Correct 2198 ms 14136 KB Output is correct