제출 #357650

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
357650		cute_hater	Snake Escaping (JOI18_snake_escaping)	C++17	12 / 100	2086 ms	21064 KiB

snake_escaping

#define _CRT_SECURE_NO_WARNINGS

#include <iostream>
#include <vector>
#include <map>
#include <set>
#include <queue>
#include <algorithm>
#include <string>
#include <cmath>
#include <cstdio>
#include <iomanip>
#include <fstream>
#include <cassert>
#include <cstring>
#include <numeric>
#include <ctime>
#include <complex>
#include <bitset>
#include <random>
#include <climits>
#include <stack>


/*#pragma GCC optimize("Ofast")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,sse4.1,sse4.2,popcnt,abm,mmx,avx,avx2,tune=native")*/

using namespace std;

typedef long long ll;
typedef long double ld;

#define int ll
#define double ld
#define loop(i, n) for(int i = 0; i < (int)n; ++i)
#define loop1(i, n) for(int i = 1; i <= (int)n; ++i)
#define F first
#define S second
#define pb push_back
#define pi pair <int, int>
#define all(x) begin(x), end(x)
#define ti tuple <int, int, int>
#define Point Vect
#define no {cout << -1; return;}
#define yes {cout << "Yes"; return;}
#define mkp make_pair
#define mkt make_tuple
#define cerr if(0) cerr

map <string, int> cnt;
string t;

void calc(int l, string & s) {
    int ans = 0;
    loop(i, (1ll << l)) {
        bool f = 1;
        loop(bit, l)
            if (t[bit] != '?' && bool(i & (1ll << bit)) != t[bit] - '0') {
                f = 0; break;
            }
        if (f)
            ans += s[i] - '0';
    }
    cnt[t] = ans;
}

void precalc(int l, string &s) {
    if (t.size() == l) {
        calc(l, s);
        return;
    }
    t.pb('0');
    precalc(l, s);
    t[t.size() - 1] = '1';
    precalc(l, s);
    t[t.size() - 1] = '?';
    precalc(l, s);
    t.pop_back();
}

void solve() {
    int l, q;
    string s;
    cin >> l >> q >> s;
    precalc(l, s);
    loop(i, q) {
        string t; cin >> t;
        reverse(all(t));
        cout << cnt[t] << "\n";
    }
}


signed main() {
    //freopen("b2.txt", "r", stdin);
    //freopen("ans9.txt", "w", stdout);
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    //int t; cin >> t; loop(i, t)
    solve();
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

snake_escaping.cpp: In function 'void precalc(ll, std::string&)':
snake_escaping.cpp:70:18: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'll' {aka 'long long int'} [-Wsign-compare]
   70 |     if (t.size() == l) {
      |         ~~~~~~~~~^~~~

• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 0 / 10
• Subtask 4: 0 / 53
• Subtask 5: 0 / 25