Submission #844384

#	Time	Username	Problem	Language	Result	Execution time	Memory
844384		vjudge1	Nivelle (COCI20_nivelle)	C++17	13 / 110	1 ms	672 KiB

nivelle

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#include <bits/stdc++.h>
using namespace std;
#define int long long
 
#define ONLINE_JUDGE
#ifndef ONLINE_JUDGE
    #define OPEN freopen(".in", "r", stdin); \
                 freopen(".out", "w", stdout);
#else
    #define OPEN void(23);
#endif

void solve()
{
    int n; cin >> n;
    string str; cin >> str; str = '$' + str;

    double ans = 2;
    pair <int, int> cev;
    int l = 1, r = 1;
    while(r <= n && l <= n)
    {
        if(r + 1 <= n && str[r +1] == str[l]) r++;
        else
        {
            l = r +1;
            continue;
        }


        double calc = double(1.0f) / (r - l +1);
        if(calc < ans)
        {
            ans = calc;
            cev = {l, r};
        }
    }

    bool ok = true;
    for(int i = 1; i +1 <= n; i++) ok &= str[i] == str[i +1];

    if(!ok)
    {
        double calc = double(2.0f) / n;
        if(calc < ans)
        {
            ans = calc;
            cev = {1, n};
        }
    }

    cerr << ans;
    cout << cev.first << " " << cev.second;

    return;
}

int32_t main()
{
    OPEN;

    ios_base::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);

    int t = 1; //cin >> t;
    while(t--)
    {
        solve();
    }
}

• Subtask 1: 0 / 7
• Subtask 2: 0 / 17
• Subtask 3: 13 / 13
• Subtask 4: 0 / 25
• Subtask 5: 0 / 48