Submission #153610

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
153610	2019-09-15 01:17:38	myungwoo	Rectangles (IOI19_rect)	C++14	37 / 100	5158 ms	893772 KiB

rect

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#include <bits/stdc++.h>
#include "rect.h"
using namespace std;
#define fr first
#define sc second
#define sz(v) ((int)(v).size())
typedef long long lld;
typedef pair<int, int> pii;
int N, M;
int A[2502][2502];
pii ver[2502][2502], hor[2502][2502];
map <int, int> verDP[2502][2502], horDP[2502][2502];
inline int get(map<int, int> &m, int x)
{
  auto it = m.find(x);
  return it == m.end() ? 0 : it->second;
}
lld count_rectangles(vector<vector<int>> a)
{
  N = sz(a); M = sz(a[0]);
  for (int i=1;i<=N;i++) for (int j=1;j<=M;j++) A[i][j] = a[i-1][j-1];
  for (int i=1;i<=N;i++){
    stack <int> stk;
    for (int j=1;j<=M;j++){
      while (!stk.empty() && A[i][stk.top()] <= A[i][j]) stk.pop();
      hor[i][j].fr = stk.empty() ? 1 : stk.top()+1;
 
 
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• Subtask 1: 8 / 8
• Subtask 2: 7 / 7
• Subtask 3: 12 / 12
• Subtask 4: 0 / 22
• Subtask 5: 10 / 10
• Subtask 6: 0 / 13
• Subtask 7: 0 / 28