Submission #1011007

#	Time	Username	Problem	Language	Result	Execution time	Memory
1011007		ttamx	마술쇼 (APIO24_show)	C++17	100 / 100	1 ms	796 KiB

Alice

#include <bits/stdc++.h>
#include "Alice.h"

using namespace std;

vector<pair<int,int>> Alice(){
    int n=200;
    long long x=setN(n);
    vector<pair<int,int>> res;
    for(int i=1;i<n;i++)res.emplace_back(x%i+1,i+1);
    return res;
}

Bob

#include <bits/stdc++.h>
#include "Bob.h"

using namespace std;

using i128 = __int128_t;

long long Bob(vector<pair<int,int>> e){
    const i128 LIM=1e18;
    auto extgcd=[&](i128 a,i128 b){
        i128 u=1,v=0,q=0;
        while(b){
            q=a/b;
            a-=q*b,u-=q*v;
            swap(a,b),swap(u,v);
        }
        return make_tuple(a,u,v);
    };
    i128 a=0,m=0;
    for(auto [u,v]:e){
        if(m>LIM)break;
        u--,v--;
        if(u>v)swap(u,v);
        if(m==0){
            a=u,m=v;
            continue;
        }
        auto [g,x,y]=extgcd(m,v);
        a=a+x*(u-a)/g%(v/g)*m;
        m=m/g*v;
        a%=m;
        if(a<0)a+=m;
    }
    return a;
}

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