oj.uz

Submission #414236

# Submission time Handle Problem Language Result Execution time Memory
414236 2021-05-30T09:31:13 Z amoo_safar Cultivation (JOI17_cultivation) C++17
15 / 100
 1369 ms 15120 KB 
// vaziat meshki-ghermeze !
#include <bits/stdc++.h>

#define pb push_back
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define debug(x) cerr << #x << " : " << x << '\n'

using namespace std;

typedef long long ll;
typedef long double ld;
typedef string str;
typedef pair<int, int> pii;

const ll Mod = 1000000007LL;
const int N = 3e2 + 10;
const int Inf = 2'000'000'001;
const ll Log = 30;

int n, R, C;
pii A[N];

// 0, x, y -> C + R < x -> y
// 1, x, y -> C < x -> y
// 2, x, y -> R < x -> y
typedef pii con;
typedef pair<con, int> Query;
vector<Query> Q, TQ, V0, V1;
typedef pair<con, con> iff;
vector< pair<iff, int> > cons;

bool Better(con A, con B){
	if(A.F != B.F)
		return false;
	return A.S >= B.S;
}
bool Sat(con A, int i, int j){
	if(A.F == 0)
		return i + j < A.S;
	if(A.F == 1)
		return i < A.S;
	return j < A.S;
}
void Check(int l, int r){
	int ln = r - l - 1;
	vector<int> V;
	for(int k = 1; k <= n; k++){
		if(l < A[k].F && A[k].F < r)
			V.pb(A[k].S);
	}
	sort(all(V));

	int sz = Q.size();
	vector< pair<con, int> > tmp;
	if(!V.empty() && V[0] > 1)
		tmp.pb({{1, V[0] - 1}, ln});
	if(!V.empty() && V.back() < C)
		tmp.pb({{2, C - V.back()}, ln});
	for(int i = 0; i + 1 < (int) V.size(); i++){
		if(0 < V[i + 1] - V[i] - 1)
			tmp.pb({{0, V[i + 1] - V[i] - 1}, ln});
	}
	if(V.empty())
		tmp.pb({{1, C}, ln});
	sort(all(tmp));
	for(int i = 0; i < (int) tmp.size(); i++)
		if((i + 1 == (int) tmp.size()) || (!Better(tmp[i + 1].F, tmp[i].F)) )
			Q.pb(tmp[i]);

	for(int i = sz; i < (int) Q.size(); i++)
		TQ.pb(Q[i]);
	// Q.resize(sz);
}

int ans[N][N]; // C R

pii Inter(pii A, pii B){ return pii(max(A.F, B.F), min(A.S, B.S)); }
pii Inter(con c, int v){
	if(c.F == 0){
		if(v > c.S)
			return pii(0, v + 1);
		return pii(v + 1, 0);
	} else if(c.F == 1){
		return pii(0, c.S);
	}
	return pii((v - c.S) + 1, v + 1);
}
pii Inter(iff c, int v){ return Inter(Inter(c.F, v), Inter(c.S, v)); }

vector<iff> act;
bool Valid(int v){
	vector<int> mk(C + 2, 0);
	for(int i = 0; i < C; i++)
		for(int j = 0; j < C; j++)
			if(i + j == v && ans[i][j] == 0)
				return true;
	return false;
	for(auto fi : act){
		pii X = Inter(fi, v);
		X.S = min(X.S, C + 1);
		X.F = max(X.F, 0);
		if(X.F >= X.S) continue;
		for(int i = X.F; i < X.S; i++) mk[i] = 1;
	}
	for(auto c : mk)
		if(c == 0)
			return true;
	return false;
}

int main(){
	ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	cin >> R >> C >> n;
	for(int i = 1; i <= n; i++){
		cin >> A[i].F >> A[i].S;
	}
	sort(A + 1, A + n + 1);
	// vector<int> V;
	// sort(all(V));
	// for(int i = 1; i <= n; i++) V.pb(A[i].S);
	// int mn_S = 0;
	// for(int i = 0; i < n; i++)
	// 	mn_S = max(mn_S, V[i + 1] - V[i] - 1);
	// Check(0, R + 1);
	// int mx = (A[1].F - 1) + (R - A[n].F);
	Check(0, R + 1);
	for(auto &[cn, sm] : Q)
		sm = Inf;

	TQ.clear();
	int sz = Q.size();
	for(int i = 1; i <= n; i++)
		Check(0, A[i].F);
	Q.resize(sz);
	V0 = TQ; TQ.clear();
	for(int i = 1; i <= n; i++)
		Check(A[i].F, R + 1);
	Q.resize(sz);
	V1 = TQ; TQ.clear();
	for(auto [c1, v1] : V0)
		for(auto [c2, v2] : V1)
			cons.pb({{min(c1, c2), max(c1, c2)}, v1 + v2});
	Q.resize(sz);

	for(int i = 1; i <= n; i++)
		for(int j = i + 1; j <= n; j++)
			if(A[j].F - 1 > A[i].F)
				Check(A[i].F, A[j].F);
	for(auto [c1, v1] : Q)
		cons.pb({{c1, c1}, v1});
	
	sort(all(cons), [&](auto e1, auto e2){
		return e1.S > e2.S;
	});

	int ANS = R + C;
	cons.pb({{{0, 0}, {0, 0}}, 0});
	for(auto [fi, v] : cons){
		// debug(v);
		
		for(int i = 0; i < C; i++){
			for(int j = 0; j < C; j++)
				if(!ans[i][j])
					ANS = min(ANS, i + j + v);
		}
		// int L = -1, R = C + C;
		// int mid;
		// while(L + 1 < R){
		// 	mid = (L + R) >> 1;
		// 	if(Valid(mid)) R = mid;
		// 	else L = mid;
		// }
		// ANS = min(ANS, R + v);

		auto [c1, c2] = fi;
		for(int i = 0; i < C; i++)
			for(int j = 0; j < C; j++)
				if(Sat(c1, i, j) && Sat(c2, i, j))
					ans[i][j] = 1;
		// act.pb(fi);
	}
	
	cout << ANS << '\n';
	return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 324 KB Output is correct
5 Correct 1 ms 324 KB Output is correct
6 Correct 1 ms 316 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 204 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 324 KB Output is correct
5 Correct 1 ms 324 KB Output is correct
6 Correct 1 ms 316 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 2 ms 332 KB Output is correct
18 Correct 29 ms 860 KB Output is correct
19 Correct 14 ms 512 KB Output is correct
20 Correct 23 ms 528 KB Output is correct
21 Correct 36 ms 680 KB Output is correct
22 Correct 186 ms 2084 KB Output is correct
23 Correct 24 ms 596 KB Output is correct
24 Correct 320 ms 2468 KB Output is correct
25 Correct 274 ms 2112 KB Output is correct
26 Correct 1369 ms 14564 KB Output is correct
27 Correct 643 ms 5008 KB Output is correct
28 Correct 381 ms 3832 KB Output is correct
29 Correct 428 ms 4516 KB Output is correct
30 Correct 495 ms 4512 KB Output is correct
31 Correct 628 ms 4748 KB Output is correct
32 Correct 442 ms 4436 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 324 KB Output is correct
5 Correct 1 ms 324 KB Output is correct
6 Correct 1 ms 316 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 2 ms 332 KB Output is correct
18 Correct 29 ms 860 KB Output is correct
19 Correct 14 ms 512 KB Output is correct
20 Correct 23 ms 528 KB Output is correct
21 Correct 36 ms 680 KB Output is correct
22 Correct 186 ms 2084 KB Output is correct
23 Correct 24 ms 596 KB Output is correct
24 Correct 320 ms 2468 KB Output is correct
25 Correct 274 ms 2112 KB Output is correct
26 Correct 1369 ms 14564 KB Output is correct
27 Correct 643 ms 5008 KB Output is correct
28 Correct 381 ms 3832 KB Output is correct
29 Correct 428 ms 4516 KB Output is correct
30 Correct 495 ms 4512 KB Output is correct
31 Correct 628 ms 4748 KB Output is correct
32 Correct 442 ms 4436 KB Output is correct
33 Runtime error 41 ms 15120 KB Execution killed with signal 11
34 Halted 0 ms 0 KB -

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 708 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 708 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 324 KB Output is correct
5 Correct 1 ms 324 KB Output is correct
6 Correct 1 ms 316 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 2 ms 332 KB Output is correct
18 Correct 29 ms 860 KB Output is correct
19 Correct 14 ms 512 KB Output is correct
20 Correct 23 ms 528 KB Output is correct
21 Correct 36 ms 680 KB Output is correct
22 Correct 186 ms 2084 KB Output is correct
23 Correct 24 ms 596 KB Output is correct
24 Correct 320 ms 2468 KB Output is correct
25 Correct 274 ms 2112 KB Output is correct
26 Correct 1369 ms 14564 KB Output is correct
27 Correct 643 ms 5008 KB Output is correct
28 Correct 381 ms 3832 KB Output is correct
29 Correct 428 ms 4516 KB Output is correct
30 Correct 495 ms 4512 KB Output is correct
31 Correct 628 ms 4748 KB Output is correct
32 Correct 442 ms 4436 KB Output is correct
33 Runtime error 41 ms 15120 KB Execution killed with signal 11
34 Halted 0 ms 0 KB -