Submission #516871

#	Time	Username	Problem	Language	Result	Execution time	Memory
516871		Marslai24	Kamenčići (COCI21_kamencici)	C++17	0 / 70	0 ms	204 KiB

Main

#include <bits/stdc++.h>
using namespace std;
#define int long long // a.k.a. TLE creator
#define all(x) x.begin(), x.end()
template<class A, class B> istream& operator >>(istream &o, pair<A, B> &x){return o >> x.first >> x.second;}
template<class A, class B> ostream& operator <<(ostream &o, pair<A, B> &x){return o << x.first << ' ' << x.second << ' ';}
void setIO(){ios::sync_with_stdio(false); cin.tie(0);}
const int INF = INT_MAX, MOD = 998244353, N = 1e6 + 2, K = __lg(N) + 1;

signed main(){
    setIO();
    int n, k;
    string s;
    cin >> n >> k >> s;
    int cnt[2]{}, l = 0, r = n - 1;
    for(int i = 0; i < n && cnt[0] < k && cnt[1] < k; i++){
        if(s[l] == 'P')l++;
        else if(s[r] == 'P')r--;
        else{
            cnt[i & 1]++;
            if(i + 1 < n && (s[l + 1] == 'P' || s[r] == 'P'))r--;
            else l++;
        }
    }
    cout << (cnt[0] < k ? "DA" : "NE");
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 40