結果
| 問題 | 
                            No.1588 Connection
                             | 
                    
| コンテスト | |
| ユーザー | 
                             Enjapma_kyopro
                         | 
                    
| 提出日時 | 2021-07-08 22:46:16 | 
| 言語 | C++14  (gcc 13.3.0 + boost 1.87.0)  | 
                    
| 結果 | 
                             
                                AC
                                 
                             
                            
                         | 
                    
| 実行時間 | 102 ms / 2,000 ms | 
| コード長 | 4,276 bytes | 
| コンパイル時間 | 1,833 ms | 
| コンパイル使用メモリ | 179,652 KB | 
| 実行使用メモリ | 25,220 KB | 
| 平均クエリ数 | 551.31 | 
| 最終ジャッジ日時 | 2024-07-17 11:40:11 | 
| 合計ジャッジ時間 | 4,932 ms | 
| 
                            ジャッジサーバーID (参考情報)  | 
                        judge3 / judge2 | 
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| ファイルパターン | 結果 | 
|---|---|
| sample | AC * 1 | 
| other | AC * 31 | 
コンパイルメッセージ
main.cpp: In function 'bool solve()':
main.cpp:150:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' [-Wc++17-extensions]
  150 |         auto [vx, vy] = q.front();
      |              ^
            
            ソースコード
#include <bits/stdc++.h>
using namespace std;
// using namespace atcoder;
// using mint = long double;
// using mint = atcoder::modint998244353;
// using mint = atcoder::modint1000000007;
typedef long long ll;
typedef pair<ll, ll> P;
typedef pair<ll, P> T;
typedef pair<ll, vector<ll>> Pd;
const ll INF = 3e18;
const ll fact_table = 3200000;
priority_queue<ll> pql;
priority_queue<P> pqp;
// big priority queue
// priority_queue<ll, vector<ll>, greater<ll>> pqls;
priority_queue<P, vector<P>, greater<P>> pqps;
// small priority queue
// top pop
ll dx[8] = {1, 0, -1, 0, 1, 1, -1, -1};
ll dy[8] = {0, 1, 0, -1, -1, 1, 1, -1};
//↓,→,↑,←
#define p(x) cout << x << "\n";
#define el cout << "\n";
#define pe(x) cout << x << " ";
#define ps(x) cout << fixed << setprecision(25) << x << endl;
#define pu(x) cout << (x);
#define pb push_back
#define eb emplace_back
#define lb lower_bound
#define ub upper_bound
#define rep(i, n) for (ll i = 0; i < (n); i++)
#define rep2(i, a, b) for (ll i = a; i <= (b); i++)
#define rep3(i, a, b) for (ll i = a; i >= (b); i--)
#define all(c) begin(c), end(c)
#define sorti(v) sort(all(v))
#define sortd(v)                                                               \
    sort(all(v));                                                              \
    reverse(all(v));
#define SUM(v) accumulate(all(v), 0LL)
#define MIN(v) *min_element(all(v))
#define MAX(v) *max_element(all(v))
typedef vector<ll> vec;
typedef vector<vector<ll>> mat;
// vec v(n) -> 長さnのベクトルを宣言
// mat dp(h, vec(w)) -> h * w の行列を宣言
const ll mod = 1000000007ll;
// const ll mod = 998244353ll;
ll mypow(ll a, ll b, ll m = mod) {
    ll x = 1;
    while (b) {
        while (!(b & 1)) {
            (a *= a) %= m;
            b >>= 1;
        }
        (x *= a) %= m;
        b--;
    }
    return x;
}
vec rv(ll read) {
    vec res(read);
    for (int i = 0; i < read; i++) {
        cin >> res[i];
    }
    return res;
}
vec fact, rfact;
void c3_init() {
    fact.resize(fact_table + 5);
    rfact.resize(fact_table + 5);
    fact[0] = rfact[0] = 1;
    for (ll i = 1; i <= fact_table; i++) {
        fact[i] = (fact[i - 1] * i) % mod;
    }
    rfact[fact_table] = mypow(fact[fact_table], mod - 2, mod);
    for (ll i = fact_table; i >= 1; i--) {
        rfact[i - 1] = rfact[i] * i;
        rfact[i - 1] %= mod;
    }
    return;
}
ll c3(ll n, ll r) {
    assert(n >= r);
    return fact[n] * rfact[r] % mod * rfact[n - r] % mod;
}
bool icpc = false;
bool multicase = false;
ll n, m, q;
ll qtime = 0;
ll table[505][505];
ll cost[505][505];
ll remain_black;
ll get(ll x, ll y) {
    
    if (table[x][y] < 2) {
        return table[x][y];
    }
    if (remain_black == 0) {
        table[x][y] = 0;
        return 0;
    }
    qtime++;
    assert(qtime <= 3000);
    cout << x << " " << y << endl;
    string ans;
    cin >> ans;
    if (ans[0] == 'B') {
        table[x][y] = 1;
        remain_black--;
    } else {
        table[x][y] = 0;
    }
    return table[x][y];
}
bool solve() {
    cin >> n >> m;
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= n; j++) {
            table[i][j] = 2;
            cost[i][j] = INF;
        }
    }
    remain_black = m - 2;
    table[1][1] = table[n][n] = 1;
    queue<P> q;
    q.push({1, 1});
    cost[1][1] = 0;
    while (q.size()) {
        auto [vx, vy] = q.front();
        q.pop();
        if (vx == n && vy == n) {
            p("Yes");
            return true;
        }
        for (int i = 0; i < 4; i++) {
            int nx = vx + dx[i], ny = vy + dy[i];
            if (nx < 1 || ny < 1 || nx > n || ny > n) continue;
            if (cost[nx][ny] != INF) continue;
            if (get(nx, ny) == 0) continue;
            q.push({nx, ny});
            cost[nx][ny] = cost[vx][vy] + 1;
        }
    }
    p("No");
    return true;
}
/*
*/
int main() {
    // ios::sync_with_stdio(false);
    // cin.tie(nullptr);
    if (icpc) {
        while (solve())
            ;
        return 0;
    }
    ll q, testcase = 1;
    if (multicase) {
        cin >> q;
    } else {
        q = 1;
    }
    while (q--) {
        // cout << "Case #" << testcase << ": ";
        solve();
        testcase++;
    }
    // solve();
    return 0;
}
            
            
            
        
            
Enjapma_kyopro