Submission #515651

#	Time	Username	Problem	Language	Result	Execution time	Memory
515651		bibabas	Kamenčići (COCI21_kamencici)	C++14	70 / 70	1 ms	204 KiB

Main

//#pragma GCC optimize("Ofast")
//#pragma GCC optimize("no-stack-protector")
//#pragma GCC optimize("unroll-loops")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx")
//#pragma GCC optimize("inline")
//#pragma GCC optimize("-fgcse")
//#pragma GCC optimize("-fgcse-lm")
//#pragma GCC optimize("-fipa-sra")
//#pragma GCC optimize("-ftree-pre")
//#pragma GCC optimize("-ftree-vrp")
//#pragma GCC optimize("-fpeephole2")
//#pragma GCC optimize("-ffast-math")
//#pragma GCC optimize("-fsched-spec")
//#pragma GCC optimize("unroll-loops")
//#pragma GCC optimize("-falign-jumps")
//#pragma GCC optimize("-falign-loops")
//#pragma GCC optimize("-falign-labels")
//#pragma GCC optimize("-fdevirtualize")
//#pragma GCC optimize("-fcaller-saves")
//#pragma GCC optimize("-fcrossjumping")
//#pragma GCC optimize("-fthread-jumps")
//#pragma GCC optimize("-funroll-loops")
////#pragma GCC optimize("-fwhole-program")
//#pragma GCC optimize("-freorder-blocks")
//#pragma GCC optimize("-fschedule-insns")
//#pragma GCC optimize("inline-functions")
//#pragma GCC optimize("-ftree-tail-merge")
//#pragma GCC optimize("-fschedule-insns2")
////#pragma GCC optimize("-fstrict-aliasing")
//#pragma GCC optimize("-fstrict-overflow")
//#pragma GCC optimize("-falign-functions")
////#pragma GCC optimize("-fcse-skip-blocks")
//#pragma GCC optimize("-fcse-follow-jumps")
////#pragma GCC optimize("-fsched-llerblock")
//#pragma GCC optimize("-fpartial-inlining")
//#pragma GCC optimize("no-stack-protector")
//#pragma GCC optimize("-freorder-functions")
//#pragma GCC optimize("-findirect-inlining")
//#pragma GCC optimize("-fhoist-adjacent-loads")
//#pragma GCC optimize("-frerun-cse-after-loop")
////#pragma GCC optimize("-inline-small-functions")
//#pragma GCC optimize("-finline-small-functions")
//#pragma GCC optimize("-ftree-switch-conversion")
//#pragma GCC optimize("-foptimize-sibling-calls")
//#pragma GCC optimize("-fexpensive-optimizations")
////#pragma GCC optimize("-funsafe-loop-optimizations")
//#pragma GCC optimize("inline-functions-called-once")
////#pragma GCC optimize("-fdelete-null-poller-checks")
#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define ull unsigned ll
#define vi vector<ll>
#define vvi vector<vi>
#define all(x) x.begin(), x.end()
#define pb push_back
#define mp make_pair
#define ld long double
#define pii pair<ll, ll>
#define mt make_tuple
#define mn(a, b) a = min(a, b)
#define mx(a, b) a = max(a, b)
#define base complex<ld>
#define START_DEPTH 18

using namespace std;
const ll INF = (ll)2e9;
const ll inf = (ll)1e18;
const ld eps = (ld)1e-12;
const ll mod = (ll)1e9 + 7;
const ll mod2 = (ll)1e9 + 7;
const ll MAXN = (ll)350 + 10;
const ll MAXC = (ll)1e5 + 10;
const ll MAXE = (ll)1e5 + 10;
const ll MAXLOG = (ll)20;
const ll asci = (ll)256;
const ll block = 316;
const ld PI = acos(-1LL);
//const ld e = 2.7182818284;

//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
//using namespace __gnu_pbds;
//typedef tree<
//        ll,
//        null_type,
//        less<ll>,
//        rb_tree_tag,
//        tree_order_statistics_node_update>
//        ordered_set;


pii operator +(const pii &a, const pii &b) {
    return {a.first + b.first, a.second + b.second};
}

template <class T>
istream& operator >>(istream &in, vector<T> &arr){
    for (T &cnt : arr) {
        in >> cnt;
    }
    return in;
};

void solve() {
    int n, k; cin >> n >> k;
    string s; cin >> s;
    int l = 0, r = n - 1;
    int turn = 0;
    vi sum(2);
    while (l <= r) {
        int x = 1;
        if (s[l] == 'P') l++;
        else if (s[r] == 'P') r--;
        else if (l + 1 <= r && s[l] == 'C' && s[l + 1] == 'C') {
            l++;
            sum[turn]++;
        } else if (r - 1 >= l && s[r - 1] == 'C' && s[r] == 'C'){
            r--;
            sum[turn]++;
        } else {
            l++, sum[turn]++;
        }
        if (sum[turn] == k) {
            if (turn) cout << "DA\n";
            else cout << "NE\n";
            return;
        }
        turn ^= x;
    }
}

signed main() {
    srand(time(0LL));
#ifdef LOCAL
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#else
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
#endif
    cout.precision(30);
//#define TEST
#ifdef TEST
    int k, q, t; cin >> k >> q >> t;
    while (t--)
#endif

    solve();

    return 0LL;
}

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