oj.uz

답안 #425928

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
425928 2021-06-13T12:26:23 Z Kevin_Zhang_TW 푸드 코트 (JOI21_foodcourt) C++17
0 / 100
 141 ms 33320 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define pb emplace_back
#define AI(i) begin(i), end(i)
template<class T> bool chmin(T &a, T b) { return b < a && (a = b, true); }
template<class T> bool chmax(T &a, T b) { return a < b && (a = b, true); }
#ifdef KEV
#define DE(args...) kout("[ " + string(#args) + " ] = ", args)
void kout() { cerr << endl; }
template<class T, class ...U> void kout(T a, U ...b) { cerr << a << ' ', kout(b...); }
template<class T> void debug(T l, T r) { while (l != r) cerr << *l << " \n"[next(l)==r], ++l; }
#else
#define DE(...) 0
#define debug(...) 0
#endif

const int MAX_N = 300010;
const ll inf = 1ll << 60;

int n, m, q;
int res[MAX_N], cid[MAX_N];

bool is_leave[MAX_N];

//          position, delta
vector<pair<int,int>> rec[MAX_N];
//         time, k
vector<pair<int,ll>> allq[MAX_N];

struct sgt {
	struct node {
		ll mn, pos, tg;
		void operator += (ll v) {
			mn += v, tg += v;
		}
		node (node a, node b) {
			mn = min(a.mn, b.mn);
			if (a.mn == mn) pos = a.pos;
			else pos = b.pos;
			tg = 0;
		}
		node () : mn(0), pos(0), tg(0) {}
		pair<ll,ll> get() { return make_pair(mn, pos); }
	};
	int n;
	vector<node> val;
	sgt(int n) : n(n) {
		val.resize(n<<1);
		for (int i = 0;i < n;++i)
			val[i+n].pos = i;
	}
	void add(int l, int r, ll v) {
		int sl = l+=n, sr = r+=n;
		for (;l < r;l>>=1, r>>=1) {
			if (l&1) val[l++] += v;
			if (r&1) val[--r] += v;
		}
		for (;sl>>=1, sr>>=1;) 
			upd(sl), upd(sr);
	}
	void upd(int i) {
		if (i >= n) return;
		ll &t = val[i].tg;
		val[i<<1] += t, val[i<<1|1] += t;
		val[i] = node(val[i<<1], val[i<<1|1]);
	}
	pair<ll,ll> qmn(int l, int r) {
		l += n, r += n;
		for (int i = 19;i > 0;--i) upd(l>>i), upd(r>>i);
		pair<ll,ll> res {inf, n};
		for (;l < r;l>>=1, r>>=1) {
			if (l&1) chmin(res, val[l++].get());
			if (r&1) chmin(res, val[--r].get());
		}
		return res;
	} 
};

// t1 for +
// t2 for -
struct bit { 
	int n;
	vector<ll> val;
	bit (int n) : n(n) {
		val.resize(n);
	}
	void add(int i, ll v) {
		for (;i < n;i += i&-i)
			val[i] += v;
	}
	ll qry(int i) {
		ll res = 0;
		for (;i;i^=i&-i) res += val[i];
		return res;
	}
	ll qry(int l, int r) { return qry(r) - qry(l-1); }
	int kth(ll k) {
		int res = 0;
		for (int i = 1<<19;i > 0;i>>=1) {
			if ((i|res) >= n || k <= val[res|i]) continue;
			assert(k > val[res|i]);
			k -= val[res|=i];
		}
		return res + 1; 
	} 
};

void solve() {

	bit t1(q + 10), t2(q + 10);
	sgt tree(q);

	for (int i = 1;i <= n;++i) {
		for (auto [j, d] : rec[i]) {
			tree.add(j, q, d);
			if (is_leave[j]) 
				t2.add(j, -d);
			else 
				t1.add(j, d);
		}

		for (auto [t, k] : allq[i]) {
			auto [v, p] = tree.qmn(0, t); 


			ll rk = t1.qry(p) + k + t2.qry(p+1, t);
			
			int ind = t1.kth(rk);
			DE(t, k, v, p, rk, ind, cid[ind]);
			if (t == 3) {
				for (int j = 1;j <= 2;++j)
					DE(j, t1.qry(j));
			}

			DE(t1.qry(ind), rk, t1.qry(ind+1));
			
			res[t] = ind >= t ? 0 : cid[ind]; 
		}
	} 
}
int32_t main() {
	ios_base::sync_with_stdio(0), cin.tie(0);
	cin >> n >> m >> q; ++q;
	fill(res, res + q, -1);

	for (int t, l, r, k, i = 1;i < q;++i) {
		cin >> t;
		if (t == 1) {
			cin >> l >> r >> cid[i] >> k;
			rec[l].pb(i, k);
			rec[r+1].pb(i,-k);
		}
		if (t == 2) {
			cin >> l >> r >> k;
			is_leave[i] = true;
			rec[l].pb(i, -k);
			rec[r+1].pb(i, k);
		}
		if (t == 3) {
			cin >> l >> k;
			allq[l].pb(i, k);
		}
	}

	solve();

	for (int i = 0;i < q;++i) {
		if (res[i] == -1) continue;
		cout << res[i] << '\n';
	}

}

Compilation message

foodcourt.cpp: In function 'void solve()':
foodcourt.cpp:14:17: warning: statement has no effect [-Wunused-value]
   14 | #define DE(...) 0
      |                 ^
foodcourt.cpp:130:4: note: in expansion of macro 'DE'
  130 |    DE(t, k, v, p, rk, ind, cid[ind]);
      |    ^~
foodcourt.cpp:14:17: warning: statement has no effect [-Wunused-value]
   14 | #define DE(...) 0
      |                 ^
foodcourt.cpp:133:6: note: in expansion of macro 'DE'
  133 |      DE(j, t1.qry(j));
      |      ^~
foodcourt.cpp:14:17: warning: statement has no effect [-Wunused-value]
   14 | #define DE(...) 0
      |                 ^
foodcourt.cpp:136:4: note: in expansion of macro 'DE'
  136 |    DE(t1.qry(ind), rk, t1.qry(ind+1));
      |    ^~

Subtask #1
0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 11 ms 14540 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 11 ms 14540 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 141 ms 22508 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 122 ms 33320 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 11 ms 14540 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 39 ms 19144 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 26.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 11 ms 14540 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 11 ms 14540 KB Output isn't correct
2 Halted 0 ms 0 KB -