結果
| 問題 |
No.1123 Afforestation
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2022-08-03 17:54:37 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 601 ms / 2,500 ms |
| コード長 | 5,237 bytes |
| コンパイル時間 | 2,448 ms |
| コンパイル使用メモリ | 206,912 KB |
| 最終ジャッジ日時 | 2025-01-30 17:21:59 |
|
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 90 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < n; i++)
#define rep2(i, x, n) for (int i = x; i <= n; i++)
#define rep3(i, x, n) for (int i = x; i >= n; i--)
#define each(e, v) for (auto &e : v)
#define pb push_back
#define eb emplace_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define sz(x) (int)x.size()
using ll = long long;
using pii = pair<int, int>;
using pil = pair<int, ll>;
using pli = pair<ll, int>;
using pll = pair<ll, ll>;
template <typename T>
bool chmax(T &x, const T &y) {
return (x < y) ? (x = y, true) : false;
}
template <typename T>
bool chmin(T &x, const T &y) {
return (x > y) ? (x = y, true) : false;
}
template <typename T>
int flg(T x, int i) {
return (x >> i) & 1;
}
template <typename T>
void print(const vector<T> &v, T x = 0) {
int n = v.size();
for (int i = 0; i < n; i++) cout << v[i] + x << (i == n - 1 ? '\n' : ' ');
if (v.empty()) cout << '\n';
}
template <typename T>
void printn(const vector<T> &v, T x = 0) {
int n = v.size();
for (int i = 0; i < n; i++) cout << v[i] + x << '\n';
}
template <typename T>
int lb(const vector<T> &v, T x) {
return lower_bound(begin(v), end(v), x) - begin(v);
}
template <typename T>
int ub(const vector<T> &v, T x) {
return upper_bound(begin(v), end(v), x) - begin(v);
}
template <typename T>
void rearrange(vector<T> &v) {
sort(begin(v), end(v));
v.erase(unique(begin(v), end(v)), end(v));
}
template <typename T>
vector<int> id_sort(const vector<T> &v, bool greater = false) {
int n = v.size();
vector<int> ret(n);
iota(begin(ret), end(ret), 0);
sort(begin(ret), end(ret), [&](int i, int j) { return greater ? v[i] > v[j] : v[i] < v[j]; });
return ret;
}
template <typename S, typename T>
pair<S, T> operator+(const pair<S, T> &p, const pair<S, T> &q) {
return make_pair(p.first + q.first, p.second + q.second);
}
template <typename S, typename T>
pair<S, T> operator-(const pair<S, T> &p, const pair<S, T> &q) {
return make_pair(p.first - q.first, p.second - q.second);
}
template <typename S, typename T>
istream &operator>>(istream &is, pair<S, T> &p) {
S a;
T b;
is >> a >> b;
p = make_pair(a, b);
return is;
}
template <typename S, typename T>
ostream &operator<<(ostream &os, const pair<S, T> &p) {
return os << p.first << ' ' << p.second;
}
struct io_setup {
io_setup() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout << fixed << setprecision(15);
}
} io_setup;
const int inf = (1 << 30) - 1;
const ll INF = (1LL << 60) - 1;
const int MOD = 1000000007;
// const int MOD = 998244353;
int main() {
int H, W;
cin >> H >> W;
vector<int> a(H), b(W);
rep(i, H) cin >> a[i];
rep(j, W) cin >> b[j];
if (accumulate(all(a), 0) != accumulate(all(b), 0)) {
cout << ":(\n";
return 0;
}
vector<vector<int>> c(H, vector<int>(W, 0));
vector<int> cnt(H + 1, 0);
vector<int> s(H + 1, 0);
rep(j, W) cnt[b[j]]++;
rep(i, H) {
if (a[i] == 0) continue;
s[0] = cnt[0];
rep2(j, 1, H) s[j] = s[j - 1] + cnt[j];
int t = ub(s, W - a[i]);
if (t == 0) {
cout << ":(\n";
return 0;
}
int T = a[i] - (W - s[t]);
rep(j, W) {
if (b[j] > t) {
c[i][j] = 1;
cnt[b[j]]--;
cnt[--b[j]]++;
} else if (b[j] == t && T > 0) {
c[i][j] = 1;
T--;
cnt[b[j]]--;
cnt[--b[j]]++;
}
}
}
int K;
cin >> K;
while (K--) {
int x, y;
cin >> x >> y;
x--, y--;
if (c[x][y] == 0) {
c[x][y] = -1;
continue;
}
queue<pii> que;
vector<int> pre1(H, -1), pre2(W, -1);
pre1[x] = y;
que.emplace(1, x);
while (!empty(que)) {
auto [t, id] = que.front();
que.pop();
if (t == 2 && id == y) break;
if (t == 1) {
int i = id;
rep(j, W) {
if (c[i][j] == 0 && pre2[j] == -1) {
pre2[j] = i;
que.emplace(2, j);
}
}
} else {
int j = id;
rep(i, H) {
if (c[i][j] == 1 && pre1[i] == -1) {
pre1[i] = j;
que.emplace(1, i);
}
}
}
}
if (pre2[y] == -1) {
cout << ":(\n";
return 0;
}
int j = y;
while (true) {
int i = pre2[j], nj = pre1[i];
c[i][j] = 1;
c[i][nj] = 0;
j = nj;
if (j == y) break;
}
c[x][y] = -1;
}
cout << "Yay!\n";
rep(i, H) {
rep(j, W) {
if (c[i][j] == 1) {
cout << "o";
} else if (c[i][j] == 0) {
cout << ".";
} else {
cout << "x";
}
}
cout << '\n';
}
}