oj.uz

답안 #1040071

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1040071 2024-07-31T15:35:49 Z Dan4Life 버섯 세기 (IOI20_mushrooms) C++17
100 / 100
 5 ms 600 KB 
#include "mushrooms.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define sz(a) (int)a.size()

int U(vector<int> v){ return use_machine(v); }
const int B = 100;
vector<int> V[2];

int count_mushrooms(int n) {
    int ans = 1, i=1, P;
    if(n<=200){
        for(int i = 1; i < n; i++) 
            ans+=!U({0,i});
        return ans;
    }
    V[0].clear(), V[1].clear(); V[0].pb(0);
    for(int j:{0,1}) V[U({0,i})].pb(i), i++;
    P = sz(V[1])>sz(V[0]);
    int x = U({V[P][0],i,V[P][1],i+1});
    V[x%2?!P:P].pb(i+1); V[x>=2?!P:P].pb(i); i+=2;

    while(i<n and sz(V[0])+sz(V[1])<2*B){
        vector<int> v; v.clear();
        P = sz(V[1])>sz(V[0]);
        v.pb(V[P][0]), v.pb(i+1);
        v.pb(V[P][1]), v.pb(i+2);
        v.pb(V[P][2]), v.pb(i);
        int x = U(v), c1=P, c2=P, c3=P, c4=P, c5=P;
        if(x%2) c3^=1, x--; 
        if(x!=2){
            if(x==4) c1^=1, c2^=1;
            V[c1].pb(i+1); V[c2].pb(i+2); V[c3].pb(i); i+=3;
        }
        else{ 
            if(sz(V[!P])>=2){
                v.clear(); v.pb(V[!P][0]), v.pb(i+1), v.pb(V[!P][1]); v.pb(V[P][0]); 
                v.pb(i+2); v.pb(V[P][1]); v.pb(i+3); v.pb(V[P][2]); v.pb(i+4);
                x = U(v)-1; c1 = !P;
                if(x%2) c5^=1, x--;
                if(x==2) c4^=1;
                else if(x==4) c1^=1, c2^=1;
                else if(x==6) c1^=1, c2^=1, c4^=1;
                V[c1].pb(i+1); V[c2].pb(i+2); V[c3].pb(i); V[c4].pb(i+3); V[c5].pb(i+4); i+=5;
            }
            else{ 
                if(U({0,i+1})) c1=1,c2=0;
                else c1=0, c2=1;
                V[c1].pb(i+1); V[c2].pb(i+2); V[c3].pb(i); i+=3;
            }
        }
    }
    ans=sz(V[0]);
    while(i<n){
        P = sz(V[1])>sz(V[0]);
        vector<int> v; v.clear();
        for(int j = 0; j < sz(V[P]) and i<n; j++)
            v.pb(V[P][j]), v.pb(i), i++;
        int x = U(v);
        if(!P) ans+=sz(v)/2;
        if(x%2) ans+=P?1:-1, V[P^1].pb(v.back());
        else V[P].pb(v.back());
        ans+=x/2*(P?1:-1);
    }
    return ans;
}

Compilation message

mushrooms.cpp: In function 'int count_mushrooms(int)':
mushrooms.cpp:19:13: warning: unused variable 'j' [-Wunused-variable]
   19 |     for(int j:{0,1}) V[U({0,i})].pb(i), i++;
      |             ^

Subtask #1
100.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 3 ms 344 KB Output is correct
8 Correct 2 ms 344 KB Output is correct
9 Correct 5 ms 456 KB Output is correct
10 Correct 2 ms 600 KB Output is correct
11 Correct 3 ms 344 KB Output is correct
12 Correct 3 ms 344 KB Output is correct
13 Correct 3 ms 444 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 2 ms 472 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 3 ms 344 KB Output is correct
18 Correct 3 ms 452 KB Output is correct
19 Correct 3 ms 464 KB Output is correct
20 Correct 2 ms 344 KB Output is correct
21 Correct 4 ms 344 KB Output is correct
22 Correct 3 ms 344 KB Output is correct
23 Correct 2 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 3 ms 460 KB Output is correct
26 Correct 3 ms 344 KB Output is correct
27 Correct 3 ms 344 KB Output is correct
28 Correct 3 ms 344 KB Output is correct
29 Correct 4 ms 472 KB Output is correct
30 Correct 2 ms 472 KB Output is correct
31 Correct 3 ms 344 KB Output is correct
32 Correct 2 ms 344 KB Output is correct
33 Correct 3 ms 344 KB Output is correct
34 Correct 3 ms 344 KB Output is correct
35 Correct 4 ms 468 KB Output is correct
36 Correct 3 ms 344 KB Output is correct
37 Correct 3 ms 344 KB Output is correct
38 Correct 3 ms 344 KB Output is correct
39 Correct 3 ms 344 KB Output is correct
40 Correct 5 ms 600 KB Output is correct
41 Correct 5 ms 344 KB Output is correct
42 Correct 3 ms 460 KB Output is correct
43 Correct 4 ms 344 KB Output is correct
44 Correct 3 ms 344 KB Output is correct
45 Correct 3 ms 344 KB Output is correct
46 Correct 5 ms 444 KB Output is correct
47 Correct 3 ms 344 KB Output is correct
48 Correct 3 ms 344 KB Output is correct
49 Correct 5 ms 344 KB Output is correct
50 Correct 3 ms 344 KB Output is correct
51 Correct 3 ms 344 KB Output is correct
52 Correct 5 ms 344 KB Output is correct
53 Correct 3 ms 456 KB Output is correct
54 Correct 3 ms 452 KB Output is correct
55 Correct 3 ms 444 KB Output is correct
56 Correct 3 ms 344 KB Output is correct
57 Correct 3 ms 344 KB Output is correct
58 Correct 3 ms 344 KB Output is correct
59 Correct 3 ms 344 KB Output is correct
60 Correct 3 ms 344 KB Output is correct
61 Correct 3 ms 344 KB Output is correct
62 Correct 0 ms 344 KB Output is correct
63 Correct 0 ms 344 KB Output is correct
64 Correct 0 ms 344 KB Output is correct
65 Correct 0 ms 344 KB Output is correct
66 Correct 0 ms 344 KB Output is correct
67 Correct 0 ms 344 KB Output is correct
68 Correct 0 ms 344 KB Output is correct
69 Correct 0 ms 344 KB Output is correct
70 Correct 0 ms 344 KB Output is correct
71 Correct 0 ms 344 KB Output is correct
72 Correct 1 ms 344 KB Output is correct
73 Correct 0 ms 344 KB Output is correct
74 Correct 0 ms 344 KB Output is correct
75 Correct 0 ms 344 KB Output is correct
76 Correct 0 ms 344 KB Output is correct
77 Correct 0 ms 344 KB Output is correct
78 Correct 0 ms 344 KB Output is correct
79 Correct 0 ms 344 KB Output is correct
80 Correct 0 ms 344 KB Output is correct
81 Correct 0 ms 344 KB Output is correct
82 Correct 1 ms 344 KB Output is correct
83 Correct 1 ms 344 KB Output is correct
84 Correct 0 ms 600 KB Output is correct
85 Correct 0 ms 344 KB Output is correct
86 Correct 0 ms 340 KB Output is correct
87 Correct 0 ms 344 KB Output is correct
88 Correct 0 ms 344 KB Output is correct
89 Correct 0 ms 344 KB Output is correct
90 Correct 0 ms 344 KB Output is correct
91 Correct 0 ms 344 KB Output is correct