Submission #1021617

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1021617	2024-07-12T22:04:43 Z	Ahmed_Solyman	Counting Mushrooms (IOI20_mushrooms)	C++14	80.427 / 100	7 ms	604 KB

mushrooms

/*
In the name of Allah
made by: Ahmed_Solyman
*/
#include <bits/stdc++.h>
 
using namespace std;
typedef long long ll;
 
int use_machine(vector<int>x);
int count_mushrooms(int n){
    if(n<=226){
        int ret=1;
        for(int i=1;i<n;i++){
            ret+=1-use_machine({0,i});
        }
        return ret;
    }
    int ret=0,k=137;
    vector<int>v[2];
    v[0].push_back(0);
    for(int i=1;i<=2;i++){
        if(use_machine({0,i})==0)v[0].push_back(i);
        else v[1].push_back(i);
    }
    bool typ;
    int x,y;
    if(v[0].size()>=2){
        typ=0;
        x=v[0][0];y=v[0][1];
    }
    else{
        typ=1;
        x=v[1][0];y=v[1][1];
    }
    for(int i=3;i<=2*k-2;i+=2){
        int h=use_machine({i,x,i+1,y});
        if(h==0){
            v[typ].push_back(i);
            v[typ].push_back(i+1);
        }
        if(h==1){
            v[typ^1].push_back(i);
            v[typ].push_back(i+1);
        }
        if(h==2){
            v[typ].push_back(i);
            v[typ^1].push_back(i+1);
        }
        if(h==3){
            v[typ^1].push_back(i);
            v[typ^1].push_back(i+1);
        }
    }
    vector<int>g;
    if(v[0].size()>v[1].size()){
        typ=0;
        g=v[0];
    }
    else{
        typ=1;        g=v[1];
    }
    auto f=[&](int l,int r){
        vector<int>p;
        for(int i=l;i<=r;i++){
            p.push_back(i);
            p.push_back(g[i-l]);
        }
        int g=use_machine(p);
        g=(g+1)/2;
        if(typ)return g;
        else return r-l+1-g;
    };
    ret=(int)v[0].size();
  	int mx=(int)v[typ].size();
    for(int i=2*k-1;i<n;i+=mx){
        ret+=f(i,min(i+mx-1,n-1));
    }
    return ret;
}

Subtask #1

80.427 / 100.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 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	448 KB	Output is correct
8	Correct	3 ms	344 KB	Output is correct
9	Correct	3 ms	344 KB	Output is correct
10	Partially correct	3 ms	344 KB	Output is partially correct
11	Partially correct	3 ms	344 KB	Output is partially correct
12	Partially correct	3 ms	344 KB	Output is partially correct
13	Correct	6 ms	344 KB	Output is correct
14	Correct	2 ms	344 KB	Output is correct
15	Partially correct	4 ms	448 KB	Output is partially correct
16	Partially correct	4 ms	344 KB	Output is partially correct
17	Correct	3 ms	344 KB	Output is correct
18	Correct	3 ms	344 KB	Output is correct
19	Partially correct	6 ms	344 KB	Output is partially correct
20	Partially correct	3 ms	344 KB	Output is partially correct
21	Partially correct	4 ms	340 KB	Output is partially correct
22	Partially correct	3 ms	344 KB	Output is partially correct
23	Partially correct	3 ms	344 KB	Output is partially correct
24	Correct	2 ms	344 KB	Output is correct
25	Partially correct	3 ms	344 KB	Output is partially correct
26	Partially correct	3 ms	344 KB	Output is partially correct
27	Partially correct	3 ms	344 KB	Output is partially correct
28	Partially correct	4 ms	344 KB	Output is partially correct
29	Partially correct	4 ms	600 KB	Output is partially correct
30	Partially correct	6 ms	344 KB	Output is partially correct
31	Partially correct	3 ms	344 KB	Output is partially correct
32	Partially correct	6 ms	344 KB	Output is partially correct
33	Partially correct	6 ms	344 KB	Output is partially correct
34	Partially correct	6 ms	604 KB	Output is partially correct
35	Partially correct	5 ms	344 KB	Output is partially correct
36	Partially correct	4 ms	344 KB	Output is partially correct
37	Partially correct	3 ms	444 KB	Output is partially correct
38	Partially correct	3 ms	344 KB	Output is partially correct
39	Partially correct	4 ms	344 KB	Output is partially correct
40	Partially correct	4 ms	344 KB	Output is partially correct
41	Partially correct	3 ms	344 KB	Output is partially correct
42	Partially correct	6 ms	344 KB	Output is partially correct
43	Partially correct	5 ms	344 KB	Output is partially correct
44	Partially correct	5 ms	344 KB	Output is partially correct
45	Partially correct	4 ms	344 KB	Output is partially correct
46	Partially correct	4 ms	344 KB	Output is partially correct
47	Partially correct	4 ms	344 KB	Output is partially correct
48	Partially correct	4 ms	344 KB	Output is partially correct
49	Partially correct	4 ms	344 KB	Output is partially correct
50	Partially correct	7 ms	344 KB	Output is partially correct
51	Partially correct	4 ms	344 KB	Output is partially correct
52	Partially correct	3 ms	344 KB	Output is partially correct
53	Partially correct	5 ms	344 KB	Output is partially correct
54	Partially correct	6 ms	344 KB	Output is partially correct
55	Partially correct	4 ms	344 KB	Output is partially correct
56	Partially correct	6 ms	344 KB	Output is partially correct
57	Partially correct	4 ms	340 KB	Output is partially correct
58	Partially correct	4 ms	344 KB	Output is partially correct
59	Partially correct	4 ms	344 KB	Output is partially correct
60	Partially correct	4 ms	344 KB	Output is partially correct
61	Partially correct	3 ms	340 KB	Output is partially 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	1 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	1 ms	344 KB	Output is correct
70	Correct	1 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	1 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	1 ms	344 KB	Output is correct
77	Correct	0 ms	344 KB	Output is correct
78	Correct	1 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	0 ms	344 KB	Output is correct
83	Correct	0 ms	344 KB	Output is correct
84	Correct	0 ms	344 KB	Output is correct
85	Correct	0 ms	344 KB	Output is correct
86	Correct	0 ms	344 KB	Output is correct
87	Correct	1 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	1 ms	344 KB	Output is correct