Submission #1058982

#	Time	Username	Problem	Language	Result	Execution time	Memory
1058982		Boas	Copy and Paste 3 (JOI22_copypaste3)	C++17	5 / 100	2764 ms	368340 KiB

copypaste3

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace std;
using namespace __gnu_pbds;

template <typename T1, typename T2>
using indexed_map = tree<T1, T2, less<T1>, rb_tree_tag, tree_order_statistics_node_update>;
template <typename T>
using indexed_set = indexed_map<T, null_type>;

#define loop(x, i) for (int i = 0; i < (x); i++)
#define loop1(x, i) for (int i = 1; i <= (x); i++)
#define rev(x, i) for (int i = (int)(x) - 1; i >= 0; i--)
#define itloop(x) for (auto it = begin(x); x != end(x); it++)
#define itrev(x) for (auto it = rbegin(x); x != rend(x); it++)
#define int long long
#define INF ((int)(2e18 + 1))
#define ALL(x) begin(x), end(x)
#define RALL(x) rbegin(x), rend(x)
#define existsIn(x, l) (count(ALL(l), x) > 0)
#define removeIn(x, l) l.erase(find(ALL(l), x))
#define pb push_back
#define sz(x) (int)(x).size()
#define F first
#define S second
#define var const auto &
#define foreach(l) for (var e : l)

typedef int8_t in8;
typedef int16_t in16;
typedef int32_t in32;
typedef int64_t in64;
typedef pair<int, int> ii;
typedef tuple<int, int, int> iii;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<ii> vii;
typedef vector<iii> viii;
typedef vector<vii> vvii;
typedef vector<viii> vviii;
typedef set<int> si;
typedef set<ii> sii;
typedef set<iii> siii;
typedef vector<si> vsi;
typedef vector<sii> vsii;
typedef vector<vsi> vvsi;
typedef vector<string> vstr;
typedef vector<vector<string>> vvstr;
typedef vector<bool> vb;
typedef vector<vb> vvb;
typedef vi::iterator viit;
typedef si::iterator siit;

typedef tuple<int, int, int, int> iiii;
typedef tuple<int, int, int, int, int> iiiii;

int n, a, b, c;
string s;
// map<iiii, int> dp;
set<iiii> seen;
vi ixs;

void solve()
{
    ixs.clear();
    cin >> n >> s >> a >> b >> c;
    map<string, si> strIxs;
    si chars;
    loop(n, i)
    {
        if (!chars.count(s[i]))
        {
            chars.insert(s[i]);
            ixs.pb(i);
        }
    }
    if (chars.size() > 1)
        loop(n, l) for (int r = l; r < n; r++) strIxs[s.substr(l, r - l + 1)].insert(l);
    priority_queue<iiiii> q;
    q.push({0, 0, 0, 0, 0});
    while (!q.empty())
    {
        auto [cur, lX, sX, lY, sY] = q.top();
        q.pop();
        if (sX == n)
        {
            cout << -cur << endl;
            exit(0);
        }
        if (sX > n)
            continue;
        if (seen.count({lX, sX, lY, sY}))
            continue;
        seen.insert({lX, sX, lY, sY});
        if (sX == 0LL)
        {
            for (int i : ixs)
            {
                q.push({cur - a, i, 1LL, lY, sY});
            }
        }
        else
        {
            q.push({cur - a, lX, sX + 1LL, lY, sY});
        }
        if (sX)
        {
            q.push({cur - b, 0LL, 0LL, lX, sX});
        }
        if (sY)
        {
            if (chars.size() == 1)
            {
                q.push({cur - c, lX, sX + sY, lY, sY});
            }
            else
            {
                string x = s.substr(lX, sX);
                string y = s.substr(lY, sY);
                for (int i : strIxs[x])
                {
                    if (i + sX + sY <= n && strIxs[y].count(i + sX))
                        q.push({cur - c, i, sX + sY, lY, sY});
                }
            }
        }
    }
}

signed main()
{
    cin.tie(0)->sync_with_stdio(0);
    int t = 1;
    // cin >> t;
    while (t--)
        solve();
}

• Subtask 1: 0 / 1
• Subtask 2: 5 / 5
• Subtask 3: 0 / 14
• Subtask 4: 0 / 10
• Subtask 5: 0 / 32
• Subtask 6: 0 / 38