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Submission #516871

# Submission time Handle Problem Language Result Execution time Memory
516871 2022-01-22T07:51:33 Z Marslai24 Kamenčići (COCI21_kamencici) C++17
0 / 70
 0 ms 204 KB 
#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 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Incorrect 0 ms 204 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Incorrect 0 ms 204 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Incorrect 0 ms 204 KB Output isn't correct
3 Halted 0 ms 0 KB -