oj.uz

Submission #1029354

# Submission time Handle Problem Language Result Execution time Memory
1029354 2024-07-20T17:48:26 Z Minbaev Luxury burrow (IZhO13_burrow) C++17
100 / 100
 305 ms 25684 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp> 
 
#pragma GCC target("avx,avx2,fma")
#pragma GCC optimize("Ofast,unroll-loops")
 
using namespace std;
using namespace __gnu_pbds;
 
#define pb push_back
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define f first
#define s second
#define int long long
#define pii pair<int,int>
#define ar array
 
template<class T>bool umax(T &a,T b){if(a<b){a=b;return true;}return false;}
template<class T>bool umin(T &a,T b){if(b<a){a=b;return true;}return false;}
 
typedef tree<int, null_type, less_equal<int>, rb_tree_tag,
 tree_order_statistics_node_update> ordered_set;
 
const int inf = 1e17 + 7;
const int mod = 1e9 + 7;
const int N = 3e5 + 5;
const int md = 998244353;

int binpow(int a, int b){
	if(b == 0)return 1;
	if(b % 2 == 0){
		int c = binpow(a,b/2);
		return (c*c)%mod;
	}
	return (binpow(a,b-1)*a)%mod;
}

int divi(int a, int b){
	return (a*(binpow(b,mod-2)))%mod;
}

int n,m,k;
vector<int>l(1005), r(1005);

void solve(){
	
	cin >> n >> m >> k;
	
	int arr[n+1][m+1];
	for(int i = 0;i<n;i++)
		for(int j = 0;j<m;j++)
			cin >> arr[i][j];
		
	int area = 0, ans = -1;
	int l1 = 1, r1 = 1e9;
	
	while(l1<=r1){
		int mid = (l1+r1)/2;
		
		int dp[n+1][m+1]{};
		for(int i = n-1;i>=0;i--)
			for(int j = 0;j<m;j++){
				if(arr[i][j] >= mid)dp[i][j] = dp[i+1][j] + 1;
				else dp[i][j] = 0;
		}
		
		int mx = -1;
		for(int i = 0;i<n;i++){
			for(int j = 0;j<m;j++){
				l[j] = j - 1;
				while(l[j] >= 0 && dp[i][l[j]] >= dp[i][j])l[j] = l[l[j]];
			}
			
			for(int j = m - 1;j>=0;j--){
				r[j] = j + 1;
				while(r[j] < m && dp[i][r[j]] >= dp[i][j])r[j] = r[r[j]];
				umax(mx, (r[j]-l[j]-1)*dp[i][j]);
			}
		}
		
		if(mx >= k){
			l1 = mid + 1;
			area = mx;
			ans = mid;
		}
		else{
			r1 = mid - 1;
		}
	}
	
	cout << ans << " " << area << "\n";
	
	
	
}
/*
2
2
2 1
4
2 3 1 4

 */
 signed main()
{
//	freopen("seq.in", "r", stdin);
//  freopen("seq.out", "w", stdout);
	ios_base::sync_with_stdio(0);cin.tie(NULL);cout.tie(NULL);
	int tt=1;//cin>>tt;
	while(tt--)solve();
 
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 4 ms 652 KB Output is correct
9 Correct 5 ms 856 KB Output is correct
10 Correct 16 ms 1408 KB Output is correct
11 Correct 24 ms 1880 KB Output is correct
12 Correct 14 ms 1372 KB Output is correct
13 Correct 17 ms 1628 KB Output is correct
14 Correct 43 ms 3420 KB Output is correct
15 Correct 45 ms 3420 KB Output is correct
16 Correct 46 ms 4048 KB Output is correct
17 Correct 49 ms 4888 KB Output is correct
18 Correct 112 ms 8872 KB Output is correct
19 Correct 154 ms 9780 KB Output is correct
20 Correct 271 ms 15952 KB Output is correct
21 Correct 239 ms 19208 KB Output is correct
22 Correct 290 ms 25680 KB Output is correct
23 Correct 305 ms 25684 KB Output is correct
24 Correct 217 ms 14932 KB Output is correct
25 Correct 220 ms 18960 KB Output is correct