oj.uz

Submission #4779

# Submission time Handle Problem Language Result Execution time Memory
4779 2014-01-01T21:27:53 Z tncks0121 Luxury burrow (IZhO13_burrow) C++
100 / 100
 488 ms 8988 KB 
#include <stdio.h> 
#include <stdlib.h> 
#include <string.h> 
#include <memory.h> 
#include <math.h> 
#include <assert.h> 
#include <stack> 
#include <queue> 
#include <map> 
#include <set> 
#include <algorithm> 
#include <string> 
#include <functional> 
#include <vector> 
#include <deque> 
#include <utility> 
#include <bitset> 
#include <limits.h>  
#include <time.h>

using namespace std; 
typedef long long ll; 
typedef unsigned long long llu; 
typedef double lf;
typedef unsigned int uint;
typedef long double llf;
typedef pair<int, int> pii;

const int N_ = 1005, M_ = 1005;

int N, M, K;
int A[N_][M_];
int P[N_*M_], PN;
int res1, res2;

int H[M_];

struct state {
	int x, h;
	state(int x = 0, int h = 0): x(x), h(h) { }
};

state Stk[M_];
int tp;

int get (int h) {
	int ret = 0;

	for(int j = 1; j <= M; j++) H[j] = 0;
	for(int i = 1; i <= N; i++) {
		for(int j = 1; j <= M; j++) if(A[i][j] >= h) ++H[j]; else H[j] = 0;

		tp = 0;

		for(int j = 1; j <= M+1; j++) {
			int x = j;
			while(tp > 0 && Stk[tp].h > H[j]) {
				x = Stk[tp].x;
				ret = max(ret, H[j] * (j - x + 1));
				ret = max(ret, Stk[tp].h * (j - Stk[tp].x));
				--tp;
			}
			if(j <= M && H[j] > 0) {
				Stk[++tp] = state(x, H[j]);
				ret = max(ret, H[j]);
			}
		}
	}

	return ret;
}

int main() {
	int i, j, k;

	scanf("%d%d%d", &N, &M, &K);
	for(i = 1; i <= N; i++) {
		for(j = 1; j <= M; j++) {
			scanf("%d", &A[i][j]);
			P[++PN] = A[i][j];
		}
	}

	sort(P+1, P+PN+1);
	PN = unique(P+1, P+PN+1) - (P+1);

	int low = 1, high = PN;
	while(low <= high) {
		int mid = (low + high) >> 1;
		int area = get(P[mid]);
		if(area >= K) {
			res1 = P[mid]; res2 = area;
			low = mid + 1;
		}else {
			high = mid - 1;
		}
	}

	printf("%d %d\n", res1, res2);
	return 0;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 8988 KB Output is correct
2 Correct 0 ms 8988 KB Output is correct
3 Correct 0 ms 8988 KB Output is correct
4 Correct 0 ms 8988 KB Output is correct
5 Correct 0 ms 8988 KB Output is correct
6 Correct 0 ms 8988 KB Output is correct
7 Correct 0 ms 8988 KB Output is correct
8 Correct 0 ms 8988 KB Output is correct
9 Correct 4 ms 8988 KB Output is correct
10 Correct 16 ms 8988 KB Output is correct
11 Correct 24 ms 8988 KB Output is correct
12 Correct 12 ms 8988 KB Output is correct
13 Correct 20 ms 8988 KB Output is correct
14 Correct 44 ms 8988 KB Output is correct
15 Correct 52 ms 8988 KB Output is correct
16 Correct 68 ms 8988 KB Output is correct
17 Correct 40 ms 8988 KB Output is correct
18 Correct 160 ms 8988 KB Output is correct
19 Correct 156 ms 8988 KB Output is correct
20 Correct 332 ms 8988 KB Output is correct
21 Correct 372 ms 8988 KB Output is correct
22 Correct 488 ms 8988 KB Output is correct
23 Correct 476 ms 8988 KB Output is correct
24 Correct 244 ms 8988 KB Output is correct
25 Correct 228 ms 8988 KB Output is correct