#554472 (C++17) No.1231 Make a Multiple of Ten

• 問題: No.1231 Make a Multiple of Ten
• ユーザー: satashun
• 提出日時: 2020-09-18 21:24:38
• 言語: C++17 (gcc 13.3.0 + boost 1.87.0)
• 結果: AC
• 実行時間: 90 ms / 2,000 ms
• コード長: 2,018 bytes
• コンパイル時間: 1,717 ms
• コンパイル使用メモリ: 194,012 KB
• 最終ジャッジ日時: 2025-01-14 16:22:37
• ジャッジサーバーID （参考情報）: judge1 / judge4

ファイルパターン	結果
sample	AC * 3
other	AC * 13

ソースコード

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#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int, int>;
template <class T>
using V = vector<T>;
template <class T>
using VV = V<V<T>>;
#define pb push_back
#define eb emplace_back
#define mp make_pair
#define fi first
#define se second
#define rep(i, n) rep2(i, 0, n)
#define rep2(i, m, n) for (int i = m; i < (n); i++)
#define per(i, b) per2(i, 0, b)
#define per2(i, a, b) for (int i = int(b) - 1; i >= int(a); i--)
#define ALL(c) (c).begin(), (c).end()
#define SZ(x) ((int)(x).size())
constexpr ll TEN(int n) { return (n == 0) ? 1 : 10 * TEN(n - 1); }
template <class T, class U>
void chmin(T& t, const U& u) {
    if (t > u) t = u;
}
template <class T, class U>
void chmax(T& t, const U& u) {
    if (t < u) t = u;
}
template <class T, class U>
ostream& operator<<(ostream& os, const pair<T, U>& p) {
    os << "(" << p.first << "," << p.second << ")";
    return os;
}
template <class T>
ostream& operator<<(ostream& os, const vector<T>& v) {
    os << "{";
    rep(i, v.size()) {
        if (i) os << ",";
        os << v[i];
    }
    os << "}";
    return os;
}
#ifdef LOCAL
void debug_out() { cerr << endl; }
template <typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
    cerr << " " << H;
    debug_out(T...);
}
#define debug(...) \
    cerr << __LINE__ << " [" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#define dump(x) cerr << __LINE__ << " " << #x << " = " << (x) << endl
#else
#define debug(...) (void(0))
#define dump(x) (void(0))
#endif
int dp[11][10];
int main() {
    int N;
    cin >> N;
    V<int> cnt(10);
    rep(i, N) {
        int x;
        cin >> x;
        cnt[x % 10]++;
    }
    memset(dp, -1, sizeof(dp));
    dp[0][0] = 0;
    rep(i, 10) {
        rep(j, 10) {
            if (dp[i][j] == -1) continue;
            rep(k, cnt[i] + 1) {
                int d = k * i % 10;
                chmax(dp[i + 1][(j + d) % 10], dp[i][j] + k);
            }
        }
    }
    cout << dp[10][0] << endl;
    return 0;
}
 
 
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