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