oj.uz

Submission #413143

# Submission time Handle Problem Language Result Execution time Memory
413143 2021-05-28T09:31:12 Z BJoozz Counting Mushrooms (IOI20_mushrooms) C++14
92.623 / 100
 13 ms 516 KB 
#include "mushrooms.h"
#define X first
#define Y second
#define pb push_back
#include<bits/stdc++.h>
using namespace std;
mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
int randint(int l,int r){
    return uniform_int_distribution < int > (l,r) (rng);
}
///shuffle(a.begin(), a.end(), rng)
//#define int long long
const int MAX=20000+4,inf=1e9,M2=5e5+3,K=85;
void maxx(int &a,int b){if(b>a) a=b;}
void minn(int &a,int b){if(b<a) a=b;}
template <class X, class Y>
bool cmin(X &a, const Y &b) {
    return a > b ? a = b, 1 : 0;
}
bool cmax(int &a,int b){
    if(b>a){a=b;return 1;} else return 0;
}
typedef pair < int, int > ii;
int a[MAX];
///g++ mushrooms.cpp stub.cpp -std=c++14 -O2
int count_mushrooms(int n) {
    vector<int> vec,v0,v1;
    for(int i=0;i<n;i++) a[i]=i;
    shuffle(a+1,a+n,rng);
	v0.pb(0);
	int cn=0,ans=1;
	if(n>2000){
        vec.pb(0);
        vec.pb(a[++cn]);
        int x=use_machine(vec);
        if(x&1) v1.pb(a[cn]);
        else {v0.pb(a[cn]);ans++;}
        if(v0.size()==1){
            vec.clear();
            vec.pb(0);
            vec.pb(a[++cn]);
            int x=use_machine(vec);
            if(x&1) v1.pb(a[cn]);
            else {v0.pb(a[cn]);ans++;}
        }
        vec.clear();
        if(v0.size()==2){
            for(int i=0;i<K;i++){
                vec.clear();
                vec.pb(v0[0]);
                vec.pb(a[++cn]);
                vec.pb(v0.back());
                vec.pb(a[++cn]);
                int x=use_machine(vec);
                if(x&1)v1.pb(a[cn]);
                else {v0.pb(a[cn]);ans++;}
                if(x&2)v1.pb(a[cn-1]);
                else {v0.pb(a[cn-1]);ans++;}
            }

        }
        else{
            for(int i=0;i<K;i++){
                vec.clear();
                vec.pb(v1[0]);
                vec.pb(a[++cn]);
                vec.pb(v1.back());
                vec.pb(a[++cn]);
                int x=use_machine(vec);
                if(x&1){v0.pb(a[cn]);ans++;}
                else v1.pb(a[cn]);
                if(x&2){v0.pb(a[cn-1]);ans++;}
                else v1.pb(a[cn-1]);
            }
        }
	}


    while(cn!=n-1){
        vec.clear();
        int dem=0;
        if(v0.size()>v1.size()){
            for(int u:v0)if(cn<n-1){
                vec.pb(u);
                vec.pb(a[++cn]);dem++;
            }
            int x=use_machine(vec);
            ans+=(dem-1-x/2);
            if(x&1)v1.pb(a[cn]);
            else {
                v0.pb(a[cn]);
                ans++;
            }
        }
        else{
            /*for(int u:v0){
                vec.pb(u);
                if(cn<n-1 && u!=v0.back())vec.pb(++cn);
            }*/
            for(int u:v1)if(cn<n-1){
                vec.pb(u);
                vec.pb(a[++cn]);dem++;
            }
            int x=use_machine(vec);
            ans+=x/2;
            if(x&1){
                v0.pb(a[cn]);ans++;
            }
            else v1.pb(a[cn]);

        }
    }
    return ans;
}

Subtask #1
92.623 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Output is correct
2 Correct 1 ms 200 KB Output is correct
3 Correct 1 ms 200 KB Output is correct
4 Correct 1 ms 200 KB Output is correct
5 Correct 1 ms 200 KB Output is correct
6 Correct 3 ms 200 KB Output is correct
7 Correct 9 ms 328 KB Output is correct
8 Correct 8 ms 368 KB Output is correct
9 Correct 7 ms 328 KB Output is correct
10 Correct 8 ms 380 KB Output is correct
11 Partially correct 11 ms 400 KB Output is partially correct
12 Correct 8 ms 384 KB Output is correct
13 Correct 8 ms 328 KB Output is correct
14 Correct 5 ms 328 KB Output is correct
15 Partially correct 9 ms 408 KB Output is partially correct
16 Partially correct 8 ms 328 KB Output is partially correct
17 Correct 9 ms 360 KB Output is correct
18 Correct 8 ms 328 KB Output is correct
19 Partially correct 12 ms 396 KB Output is partially correct
20 Correct 10 ms 328 KB Output is correct
21 Correct 8 ms 328 KB Output is correct
22 Partially correct 9 ms 328 KB Output is partially correct
23 Correct 7 ms 328 KB Output is correct
24 Correct 6 ms 328 KB Output is correct
25 Partially correct 8 ms 328 KB Output is partially correct
26 Partially correct 10 ms 408 KB Output is partially correct
27 Partially correct 9 ms 396 KB Output is partially correct
28 Partially correct 9 ms 392 KB Output is partially correct
29 Partially correct 10 ms 392 KB Output is partially correct
30 Partially correct 12 ms 388 KB Output is partially correct
31 Partially correct 12 ms 404 KB Output is partially correct
32 Partially correct 9 ms 328 KB Output is partially correct
33 Partially correct 8 ms 404 KB Output is partially correct
34 Partially correct 9 ms 328 KB Output is partially correct
35 Partially correct 8 ms 328 KB Output is partially correct
36 Partially correct 9 ms 388 KB Output is partially correct
37 Partially correct 9 ms 516 KB Output is partially correct
38 Partially correct 8 ms 328 KB Output is partially correct
39 Partially correct 9 ms 392 KB Output is partially correct
40 Partially correct 9 ms 328 KB Output is partially correct
41 Partially correct 9 ms 328 KB Output is partially correct
42 Partially correct 10 ms 388 KB Output is partially correct
43 Partially correct 10 ms 400 KB Output is partially correct
44 Partially correct 8 ms 388 KB Output is partially correct
45 Partially correct 10 ms 380 KB Output is partially correct
46 Partially correct 7 ms 404 KB Output is partially correct
47 Partially correct 11 ms 328 KB Output is partially correct
48 Partially correct 12 ms 328 KB Output is partially correct
49 Partially correct 9 ms 456 KB Output is partially correct
50 Partially correct 9 ms 400 KB Output is partially correct
51 Partially correct 9 ms 388 KB Output is partially correct
52 Partially correct 9 ms 408 KB Output is partially correct
53 Partially correct 8 ms 388 KB Output is partially correct
54 Partially correct 8 ms 392 KB Output is partially correct
55 Partially correct 9 ms 400 KB Output is partially correct
56 Partially correct 9 ms 328 KB Output is partially correct
57 Partially correct 9 ms 400 KB Output is partially correct
58 Partially correct 8 ms 328 KB Output is partially correct
59 Partially correct 9 ms 328 KB Output is partially correct
60 Partially correct 13 ms 392 KB Output is partially correct
61 Partially correct 8 ms 376 KB Output is partially correct
62 Correct 1 ms 200 KB Output is correct
63 Correct 1 ms 200 KB Output is correct
64 Correct 1 ms 200 KB Output is correct
65 Correct 1 ms 200 KB Output is correct
66 Correct 1 ms 200 KB Output is correct
67 Correct 1 ms 200 KB Output is correct
68 Correct 1 ms 200 KB Output is correct
69 Correct 1 ms 200 KB Output is correct
70 Correct 1 ms 200 KB Output is correct
71 Correct 1 ms 200 KB Output is correct
72 Correct 1 ms 200 KB Output is correct
73 Correct 1 ms 200 KB Output is correct
74 Correct 1 ms 200 KB Output is correct
75 Correct 1 ms 200 KB Output is correct
76 Correct 1 ms 200 KB Output is correct
77 Correct 1 ms 200 KB Output is correct
78 Correct 1 ms 200 KB Output is correct
79 Correct 1 ms 200 KB Output is correct
80 Correct 1 ms 200 KB Output is correct
81 Correct 1 ms 200 KB Output is correct
82 Correct 1 ms 200 KB Output is correct
83 Correct 1 ms 200 KB Output is correct
84 Correct 1 ms 200 KB Output is correct
85 Correct 1 ms 200 KB Output is correct
86 Correct 1 ms 200 KB Output is correct
87 Correct 1 ms 200 KB Output is correct
88 Correct 1 ms 200 KB Output is correct
89 Correct 1 ms 200 KB Output is correct
90 Correct 1 ms 200 KB Output is correct
91 Correct 1 ms 200 KB Output is correct