Submission #991708

#	Time	Username	Problem	Language	Result	Execution time	Memory
991708		De3b0o	Present (RMI21_present)	C++17	0 / 100	2208 ms	524288 KiB

Main

#include<bits/stdc++.h>
#define ll long long
#define F first
#define S second
#define in insert
#define pb push_back
#define ppb pop_back()
#define d3 ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define cans cout << ans << "\n";
#define yes cout << "Yes" << "\n";
#define no cout << "No" << "\n";
#define pll pair<ll,ll>
#define lin cout << "\n";
#define sqr 340
#define mod 1000000007
#define mid ((l+r)/2)
#define lc (2*n)
#define rc (2*n+1)

using namespace std;

int16_t gc[26][26];
vector<vector<int16_t>> ans;
bool cnt[26];

void solve(int16_t idx)
{
    if(idx==26)
    {
        vector<int16_t> v;
        for(int16_t i = 1 ; 25>=i ; i++)
            if(cnt[i])
                v.pb(i);
        ans.pb(v);
        return;
    }
    solve(idx+1);
    if(cnt[idx])
        return;
    cnt[idx]=1;
    vector<int16_t> vis;
    vis.pb(idx);
    for(int16_t i = 1 ; idx>=i ; i++)
    {
        if(cnt[i]&&cnt[gc[i][idx]]==0)
        {
            vis.pb(gc[i][idx]);
            cnt[gc[i][idx]]=1;
        }
    }
    solve(idx+1);
    for(auto it : vis)
        cnt[it]=0;
    return;
}

int main()
{
    d3
    for(int16_t i = 1 ; 29>=i ; i++)
        for(int16_t j = 1 ; 29>=j ; j++)
            gc[i][j]=__gcd(i,j);
    solve(1);
    sort(ans.begin(),ans.end());
    int16_t t;
    cin >> t;
    while(t--)
    {
        int k;
        cin >> k;
        cout << ans[k].size() << " ";
        for(int16_t i = ans[k].size()-1 ; i>=0 ; i--)
            cout << ans[k][i] << " ";
        lin
    }
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:62:21: warning: iteration 25 invokes undefined behavior [-Waggressive-loop-optimizations]
   62 |             gc[i][j]=__gcd(i,j);
      |             ~~~~~~~~^~~~~~~~~~~
Main.cpp:61:31: note: within this loop
   61 |         for(int16_t j = 1 ; 29>=j ; j++)
      |                             ~~^~~
Main.cpp:62:21: warning: iteration 25 invokes undefined behavior [-Waggressive-loop-optimizations]
   62 |             gc[i][j]=__gcd(i,j);
      |             ~~~~~~~~^~~~~~~~~~~
Main.cpp:60:27: note: within this loop
   60 |     for(int16_t i = 1 ; 29>=i ; i++)
      |                         ~~^~~

• Subtask 1: 0 / 8
• Subtask 2: 0 / 21
• Subtask 3: 0 / 41
• Subtask 4: 0 / 14
• Subtask 5: 0 / 16