Submission #1226053

#	Time	Username	Problem	Language	Result	Execution time	Memory
1226053		ByeWorld	Treasure (different grader from official contest) (CEOI13_treasure2)	C++20	69 / 100	1 ms	840 KiB

treasure

#include "treasure.h"
#include <bits/stdc++.h>
// #pragma GCC optimize("O3")
#define ll long long
#define se second
#define fi first
#define pb push_back
#define lf (id<<1)
#define rg ((id<<1)|1)
#define md ((l+r)>>1)
#define tre countTreasure
using namespace std;
typedef pair<int,int> pii;
typedef pair<pii,pii> ipii;
const int MAXN = 1e5+10;
const int SQRT = 450;
const int INF = 2e9;
const int LOG = 20;
void chmn(int &a, int b){ a = min(a, b); }
void chmx(int &a, int b){ a = max(a, b); }

int n, pr[1010][1010];
bool ada[1010][1010];

void findTreasure (int n) {
	for(int i=1; i<=n/2+1; i++){
		for(int j=1; j<=n/2+1; j++){
			pr[i][j] = tre(i,j, n,n);
		}
	}
	for(int i=1; i<=n/2; i++){
		for(int j=1; j<=n/2; j++){
			int th = pr[i][j]-pr[i+1][j]-pr[i][j+1]+pr[i+1][j+1];
			if(th) ada[i][j] = 1;
		}
	}
	for(int i=1; i<=n/2+1; i++){
		for(int j=n; j>=n/2; j--){
			pr[i][j] = tre(i,1, n,j);
		}
	}
	for(int i=1; i<=n/2; i++){
		for(int j=n; j>=n/2+1; j--){
			int th = pr[i][j]-pr[i+1][j]-pr[i][j-1]+pr[i+1][j-1];
			if(th) ada[i][j] = 1;
		}
	}

	for(int i=n; i>=n/2; i--){
		for(int j=1; j<=n/2+1; j++){
			pr[i][j] = tre(1,j, i,n);
		}
	}
	for(int i=n; i>=n/2+1; i--){
		for(int j=1; j<=n/2; j++){
			int th = pr[i][j]-pr[i-1][j]-pr[i][j+1]+pr[i-1][j+1];
			if(th) ada[i][j] = 1;
		}
	}

	for(int i=n; i>=n/2; i--){
		for(int j=n; j>=n/2; j--){
			pr[i][j] = tre(1,1, i,j);
		}
	}
	for(int i=n; i>=n/2+1; i--){
		for(int j=n; j>=n/2+1; j--){
			int th = pr[i][j]-pr[i-1][j]-pr[i][j-1]+pr[i-1][j-1];
			if(th) ada[i][j] = 1;
		}
	}
	// for(int i=1; i<=n; i++){
	// 	for(int j=1; j<=n; j++){
	// 		cout << ada[i][j];
	// 	}
	// 	cout << '\n';
	// }
	for(int i=1; i<=n; i++){
		for(int j=1; j<=n; j++){
			if(ada[i][j]){
				Report(i, j);
			}
		}
	}
			
}

• Subtask 1: 69 / 100