Codeforces-solutions/Educational Codeforces Round 150 (Rated for Div. 2)/C. Ranom Numbers.cpp

/* Problem URL: https://codeforces.com/problemset/problem/1841/C */

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;

template <class T, class comp = less<>>
using ordered_set = tree<T, null_type , comp , rb_tree_tag , tree_order_statistics_node_update>;

#define V vector

#define rmin(a, b) a = min(a, b)
#define rmax(a, b) a = max(a, b)

#define rep(i, lim) for (int i = 0; i < (lim); i++)
#define nrep(i, s, lim) for (int i = s; i < (lim); i++)

#define repv(i, v) for (auto &i : (v))
#define fillv(v) for (auto &itr_ : (v)) { cin >> itr_; }
#define sortv(v) sort(v.begin(), v.end())
#define all(v) (v).begin(), (v).end()

using vi = vector<int>;
using vvi = vector<vi>;
using vvvi = vector<vvi>;
using vvvvi = vector<vvvi>;

using ll = long long;

using vl = vector<ll>;
using vvl = vector<vl>;
using vvvl = vector<vvl>;
using vvvvl = vector<vvvl>;

template<class v>
auto operator<<(ostream &os, const vector<v> &vec)->ostream& {
    os << vec[0];
    for (size_t i = 1; i < vec.size(); i++) {
        os << ' ' << vec[i];
    }
    os << '\n';
    return os;
}

template<class v>
auto operator>>(istream &is, vector<v> &vec)->istream& {
    for (auto &i : vec) {
        is >> i;
    }
    return is;
}

template<class v>
auto operator<<(ostream &os, const vector<vector<v>> &vec)->ostream& {
    for (auto &i : vec) {
        os << i[0];
        for (size_t j = 1; j < i.size(); j++) {
            os << ' ' << i[j];
        }
        os << '\n';
    }
    return os;
}

template<class v>
auto operator>>(istream  &is, vector<vector<v>> &vec)->istream& {
    for (auto &i : vec) {
        for (auto &j : i) {
            is >> j;
        }
    }
    return is;
}

const int oo = INT32_MAX >> 1;
const ll OO = INT64_MAX >> 1;


void pre()
{

}

#define TEST 1

void solve()
{
    string a;
    cin >> a;
    int n = a.size();

    vvi support(n, vi(4));

    map<char, int> var;

    vl val = {1, 10, 100, 1000, 10000};

    vvi count(n + 1, vi(5));
    vi cul(5);

    vvi valid(5);
    vvl rem(n, vl(5));

    vl cur(n);

    ll total = 0;

    for (int i = n - 1; i >= 0; i--) {
        int pos = a[i] - 'A';

        count[i] = count[i + 1];
        count[i][pos]++;
        cul[pos] = i;

        ll calc = accumulate(count[i].begin() + pos + 1, count[i].end(), 0);
        if (calc == 0) {
            valid[pos].push_back(i);
            total += val[pos];
            cur[i] = val[pos];
            continue;
        }

        if (calc == 1) {
            int it = find(count[i].begin() + pos + 1, count[i].end(), 1) - count[i].begin();
            rem[cul[it]][pos]++;
            total -= val[pos];
            cur[i] = -val[pos];
            continue;
        }

        total -= val[pos];
        cur[i] = -val[pos];
    }

    rep(i, 4) {
        reverse(all(valid[i]));
    }

    ll ans = total;
    rep(i, n) {
        count[i][a[i] - 'A']--;
        auto testa = [&]() {
            ll now = total - cur[i] + rem[i][0] * 2 + rem[i][1] * 20 + rem[i][2] * 200 + rem[i][3] * 2000;
            if (accumulate(count[i].begin() + 1, count[i].end(), 0) > 0) {
                return now - 1;
            }
            return now + 1;
        };

        auto testb = [&]() {
            ll now = total - cur[i] + rem[i][1] * 20 + rem[i][2] * 200 + rem[i][3] * 2000;
            now -= lower_bound(all(valid[0]), i) - valid[0].begin();
            if (accumulate(count[i].begin() + 2, count[i].end(), 0) > 0) {
                return now - 10;
            }
            return now + 10;
        };

        auto testc = [&]() {
            ll now = total - cur[i] + rem[i][2] * 200 + rem[i][3] * 2000;
            now -= lower_bound(all(valid[0]), i) - valid[0].begin();
            now -= (lower_bound(all(valid[1]), i) - valid[1].begin()) * 20;
            if (accumulate(count[i].begin() + 3, count[i].end(), 0) > 0) {
                return now - 100;
            }
            return now + 100;
        };

        auto testd = [&]() {
            ll now = total - cur[i] + rem[i][3] * 2000;
            now -= lower_bound(all(valid[0]), i) - valid[0].begin();
            now -= (lower_bound(all(valid[1]), i) - valid[1].begin()) * 20;
            now -= (lower_bound(all(valid[2]), i) - valid[2].begin()) * 200;
            if (accumulate(count[i].begin() + 4, count[i].end(), 0) > 0) {
                return now - 1000;
            }
            return now + 1000;
        };

        auto teste = [&]() {
            ll now = total - cur[i] + 10000;
            now -= lower_bound(all(valid[0]), i) - valid[0].begin();
            now -= (lower_bound(all(valid[1]), i) - valid[1].begin()) * 20;
            now -= (lower_bound(all(valid[2]), i) - valid[2].begin()) * 200;
            now -= (lower_bound(all(valid[3]), i) - valid[3].begin()) * 2000;
            return now;
        };

        rmax(ans, testa());
        rmax(ans, testb());
        rmax(ans, testc());
        rmax(ans, testd());
        rmax(ans, teste());
    }

    cout << ans << '\n';
}

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    pre();

    int t;
    (TEST && cin >> t) || (t = 1);
    while (t--) {
        solve();
    }
}