Submission #1203568

#	Time	Username	Problem	Language	Result	Execution time	Memory
1203568		erering	Magic Show (APIO24_show)	C++20	100 / 100	2 ms	592 KiB

Alice

#include <bits/stdc++.h>
using namespace std;
#include "Alice.h"
vector<pair<int,int>> Alice(){
    long long x = setN(60*83+2);
    vector<int> vec;
    for(long long i=1;i<=60*83;i++)vec.push_back(i/83);
    shuffle(vec.begin(),vec.end(),mt19937(5328959285));
    vector<pair<int,int>> ans={{1,2}};
    for(int j=0;j<vec.size();j++) ans.push_back({((x>>vec[j])&1) + 1, j + 3});
    return ans;
}

Bob

#include <bits/stdc++.h>
#include "Bob.h"
using namespace std;
long long Bob(vector<std::pair<int,int>> V){
    vector<int> vec;
    for(long long i=1;i<=60*83;i++)vec.push_back(i/83);
    shuffle(vec.begin(),vec.end(),mt19937(5328959285));
    long long ans=0,bits[60],a[2];
    for(auto i:V)a[i.first-1]++;
    for(int i=0;i<60;i++)bits[i]=(a[0]>a[1]?1:0);
    for(auto i:V)
        if(i.second!=2)bits[vec[i.second-3]]=i.first-1;
    for(long long i=0;i<60;i++)ans+=bits[i]*(1LL<<i);
    return ans;
}

• Subtask 1: 5 / 5
• Subtask 2: 30 / 30
• Subtask 3: 65 / 65