結果

問題 No.910 素数部分列
ユーザー tomarinttomarint
提出日時 2019-10-18 22:25:32
言語 C++14
(gcc 12.3.0 + boost 1.83.0)
結果
WA  
実行時間 -
コード長 4,686 bytes
コンパイル時間 1,141 ms
コンパイル使用メモリ 105,512 KB
実行使用メモリ 6,944 KB
最終ジャッジ日時 2024-06-25 17:19:33
合計ジャッジ時間 2,582 ms
ジャッジサーバーID
(参考情報)
judge5 / judge3
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 2 ms
5,248 KB
testcase_01 AC 2 ms
5,376 KB
testcase_02 AC 2 ms
5,376 KB
testcase_03 AC 2 ms
5,376 KB
testcase_04 AC 1 ms
5,376 KB
testcase_05 AC 1 ms
5,376 KB
testcase_06 AC 2 ms
5,376 KB
testcase_07 AC 2 ms
5,376 KB
testcase_08 AC 1 ms
5,376 KB
testcase_09 AC 2 ms
5,376 KB
testcase_10 WA -
testcase_11 AC 2 ms
5,376 KB
testcase_12 AC 2 ms
5,376 KB
testcase_13 AC 2 ms
5,376 KB
testcase_14 WA -
testcase_15 AC 2 ms
5,376 KB
testcase_16 AC 2 ms
5,376 KB
testcase_17 AC 2 ms
5,376 KB
testcase_18 AC 2 ms
5,376 KB
testcase_19 AC 2 ms
5,376 KB
testcase_20 AC 2 ms
5,376 KB
testcase_21 WA -
testcase_22 AC 2 ms
5,376 KB
testcase_23 WA -
testcase_24 WA -
testcase_25 AC 6 ms
5,376 KB
testcase_26 WA -
testcase_27 WA -
testcase_28 WA -
testcase_29 AC 4 ms
5,376 KB
testcase_30 WA -
testcase_31 WA -
testcase_32 WA -
testcase_33 WA -
testcase_34 AC 4 ms
5,376 KB
testcase_35 AC 4 ms
5,376 KB
testcase_36 AC 4 ms
5,376 KB
testcase_37 AC 4 ms
5,376 KB
testcase_38 AC 4 ms
5,376 KB
testcase_39 AC 4 ms
5,376 KB
testcase_40 AC 4 ms
5,376 KB
testcase_41 AC 4 ms
5,376 KB
testcase_42 AC 4 ms
5,376 KB
testcase_43 AC 4 ms
5,376 KB
testcase_44 AC 4 ms
5,376 KB
testcase_45 AC 4 ms
5,376 KB
testcase_46 AC 4 ms
5,376 KB
testcase_47 AC 4 ms
5,376 KB
testcase_48 AC 3 ms
5,376 KB
testcase_49 AC 3 ms
5,376 KB
testcase_50 AC 3 ms
5,376 KB
testcase_51 AC 3 ms
5,376 KB
testcase_52 AC 3 ms
5,376 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

#define DEBUG 1
#include <algorithm>
#include <cmath>
#include <cstring>
#include <deque>
#include <iomanip>
#include <iostream>
#include <map>
#include <queue>
#include <set>
#include <string>
#include <tuple>
#include <utility>
#include <vector>
using namespace std;
using ll = long long;
using ull = unsigned long long;
using ld = long double;
using vll = vector<ll>;
using vvll = vector<vll>;
using pll = pair<ll, ll>;
using tll = tuple<ll, ll, ll>;
#define all(v) (v).begin(), (v).end()
#define for1(i, n) for (ll i = 0; i < (n); i++)
#define for2(i, m, n) for (ll i = (m); i < (n); i++)
#define for3(i, m, n, d) for (ll i = (m); i < (n); i += (d))
#define rfor2(i, m, n) for (ll i = (m); i > (n); i--)
#define rfor3(i, m, n, d) for (ll i = (m); i > (n); i += (d))
#define INF 1111111111111111111LL
#define MOD 1000000007LL  // 10**9 + 7
#define print(...) print_1(__VA_ARGS__)
#define in(...) in_1(__VA_ARGS__)
#if DEBUG
#define dump(...) dump_1(#__VA_ARGS__, __VA_ARGS__)
#else
#define dump(...)
#endif
template <typename Head>
void dump_1(const char* str, Head&& h)
{
    cerr << str << ": " << h << '\n';
}
template <typename Head, typename... Tail>
void dump_1(const char* str, Head&& h, Tail&&... t)
{
    while (*str != ',') {
        cerr << *str++;
    }
    cerr << ": " << h << ' ';
    dump_1(str + 1, t...);
}
template <typename T1, typename T2>
ostream& operator<<(ostream& os, const pair<T1, T2>& v)
{
    os << '(' << v.first << ", " << v.second << ')';
    return os;
}
template <typename T1, typename T2, typename T3>
ostream& operator<<(ostream& os, const tuple<T1, T2, T3>& v)
{
    os << '(' << get<0>(v) << ", " << get<1>(v) << ", " << get<2>(v) << ')';
    return os;
}
template <typename T>
ostream& operator<<(ostream& os, const vector<T>& v)
{
    for (auto it = v.begin(); it != v.end(); it++) {
        if (it != v.begin()) {
            os << ' ';
        }
        os << *it;
    }
    return os;
}
template <typename T>
ostream& operator<<(ostream& os, const set<T>& v)
{
    for (auto it = v.begin(); it != v.end(); it++) {
        if (it != v.begin()) {
            os << ' ';
        }
        os << *it;
    }
    return os;
}
template <typename T>
ostream& operator<<(ostream& os, const multiset<T>& v)
{
    for (auto it = v.begin(); it != v.end(); it++) {
        if (it != v.begin()) {
            os << ' ';
        }
        os << *it;
    }
    return os;
}
template <typename T1, typename T2>
ostream& operator<<(ostream& os, const map<T1, T2>& v)
{
    os << '{';
    for (auto it = v.begin(); it != v.end(); it++) {
        if (it != v.begin()) {
            os << ", ";
        }
        os << it->first << ':' << it->second;
    }
    os << '}';
    return os;
}
void Yes(void) { cout << "Yes" << '\n'; }
void No(void) { cout << "No" << '\n'; }
void YES(void) { cout << "YES" << '\n'; }
void NO(void) { cout << "NO" << '\n'; }
template <typename T>
bool chmax(T& a, const T& b)
{
    if (a < b) {
        a = b;
        return true;
    }
    return false;
}
template <typename T>
bool chmin(T& a, const T& b)
{
    if (a > b) {
        a = b;
        return true;
    }
    return false;
}
template <typename T>
void vin(vector<T>& v, ll len)
{
    for1 (i, len) {
        cin >> v[i];
    }
}
template <typename Head>
void in_1(Head& h)
{
    cin >> h;
}
template <typename Head, typename... Tail>
void in_1(Head& h, Tail&... t)
{
    cin >> h;
    in_1(t...);
}
template <typename Head>
void print_1(Head&& h)
{
    cout << h << '\n';
}
template <typename Head, typename... Tail>
void print_1(Head&& h, Tail&&... t)
{
    cout << h << ' ';
    print_1(t...);
}
//---------------------------------------------------------
void solve()
{
    ll N;
    in(N);
    string S;
    in(S);
    map<char, ll> cnt;
    for (char c : S) {
        cnt[c]++;
    }
    ll ans = cnt['3'] + cnt['5'] + cnt['7'];
    ll left9 = 0;
    ll right1 = 0;
    for1 (i, N) {
        char c = S[i];
        if (c == '9') {
            left9++;
        }
        else if (c == '1') {
            break;
        }
    }
    rfor2 (i, N - 1, -1) {
        char c = S[i];
        if (c == '1') {
            right1++;
        }
        else if (c == '9') {
            break;
        }
    }

    // 19
    ll t = min(cnt['1'] - right1, cnt['9'] - left9);
    ans += t;

    cnt['1'] -= t;
    cnt['9'] -= t;

    // 991
    t = min(cnt['9'] / 2, cnt['1']);
    ans += t;
    cnt['1'] -= t;
    cnt['9'] -= t * 2;

    // 11
    t = cnt['1'] / 2;
    ans += t;
    cnt['1'] -= t * 2;

    print(ans);
}

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout << fixed << setprecision(16);
    cerr << fixed << setprecision(16);
    solve();
}
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