Submission #590508

#	Time	Username	Problem	Language	Result	Execution time	Memory
590508		nguyen31hoang08minh2003	Igra (COCI17_igra)	C++14	100 / 100	1 ms	340 KiB

igra

/*
(   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )
 ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (
(   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )
 ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (
(   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )
 ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (
(   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )
 ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (
(   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )   ) (   (   )
*/
#include <bits/stdc++.h>
#define fore(i, a, b) for (signed i = (a), i##_last = (b); i < i##_last; ++i)
#define fort(i, a, b) for (signed i = (a), i##_last = (b); i <= i##_last; ++i)
#define ford(i, a, b) for (signed i = (a), i##_last = (b); i >= i##_last; --i)
#define fi first
#define se second
#define pb push_back
#define sz(x) ((int)(x).size())
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
using namespace std;
using ll = long long;
using ld = long double;

template<class A, class B> bool maxi(A &a, const B &b) {return (a < b) ? (a = b, true):false;};
template<class A, class B> bool mini(A &a, const B &b) {return (a > b) ? (a = b, true):false;};

typedef unsigned long long ull;
typedef pair<int, int> ii;
typedef vector<ll> vi;
typedef vector<ii> vii;
typedef vector<vi> vvi;
typedef vector<vii> vvii;

const int maxN = 5005;

int n, h[270], suffix[3][maxN];
string s, t;

int main() {
    bool flag;
    #ifdef LOCAL
        freopen("input.INP", "r", stdin);
    #endif // LOCAL
    cin.tie(0) -> sync_with_stdio(0);
    cout.tie(0);
    cin >> n >> s >> t;
    for (const char &c : s)
        ++h[c - 'a'];
    ford(i, n - 1, 0) {
        fore(j, 0, 3)
            suffix[j][i] = suffix[j][i + 1];
        ++suffix[t[i] - 'a'][i];
    }
    fore(i, 0, n)
        fore(c, 0, 3) {
            if (c + 'a' == t[i] || h[c] <= 0)
                continue;
            --h[c];
            flag = true;
            for (int x = 0, y, z; x < 3 && flag; ++x)
                for (y = x + 1; y < 3 && flag; ++y) {
                    z = 3 - x - y;
                    if (h[x] + h[y] < suffix[z][i + 1])
                        flag = false;
                }
            if (flag) {
                cout << (char)(c + 'a');
                break;
            } else
                ++h[c];
        }
    cout << '\n';
    return 0;
}

• Subtask 1: 100 / 100