Submission #704439

#	Time	Username	Problem	Language	Result	Execution time	Memory
704439		ld_minh4354	Sandcastle 2 (JOI22_ho_t5)	C++17	10 / 100	5071 ms	18092 KiB

Main

#include<bits/stdc++.h>
using namespace std;

#define int long long
#define fi first
#define se second
#define pb push_back
#define debug(x) cout<<#x<<": "<<x<<"\n"



signed main()
{
	ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
//	freopen("input.000","r",stdin);
//	freopen("output.000","w",stdout);
//	srand((unsigned)time(NULL));
//	rand()
	
	int n,i,a[1505][1505],j,m,c,ans,l,r,u,d;
	pair<int,pair<int,int>> p[1505];
	bool tr;
	
	cin>>n>>m;
	for (i=1;i<n+1;i++) for (j=1;j<m+1;j++) cin>>a[i][j];
	
	ans=0;
	for (u=1;u<n+1;u++) for (d=u;d<n+1;d++)
	for (l=1;l<m+1;l++) for (r=l;r<m+1;r++)
	{
		c=0;tr=true;
		for (i=u;i<d+1;i++) for (j=l;j<r+1;j++)
		{
			c++;
			p[c]={a[i][j],{i,j}};
		}
		
		sort(p+1,p+c+1);
		for (i=1;i<c;i++)
		if (abs(p[i].se.fi - p[i+1].se.fi) + abs(p[i].se.se - p[i+1].se.se) != 1) tr=false;
		
		if (tr) ans++;
	}
	
	cout<<ans;
}

• Subtask 1: 0 / 9
• Subtask 2: 10 / 10
• Subtask 3: 0 / 5
• Subtask 4: 0 / 56
• Subtask 5: 0 / 20