Submission #620892

#	Time	Username	Problem	Language	Result	Execution time	Memory
620892		beaconmc	Vision Program (IOI19_vision)	C++14	26 / 100	204 ms	6612 KiB

vision

#include "vision.h"

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

typedef int ll;
using namespace std;
using namespace __gnu_pbds;

#define FOR(i, x, y) for(ll i=x; i<y; i++)
#define FORNEG(i, x, y) for(ll i=x; i>y; i--)
#define ordered_set tree<ll, null_type,less_equal<ll>, rb_tree_tag,tree_order_statistics_node_update>
#define fast() ios_base::sync_with_stdio(false);cin.tie(NULL)
ll h,w,k;

vector<int> hashh(vector<int> a){
	return {a[0]+a[1], a[1]-a[0]};
}

int unhashh(vector<int> a){
	vector<int> temp =  {(a[0]-a[1])/2, (a[0]+a[1])/2};


	return w*temp[0]+temp[1];
}


void construct_network(int H, int W, int K) {
	h=H; w=W; k=K;

	set<ll> x;
	set<ll> y;


	vector<vector<ll>> stuff;
	FOR(i,0,h){
		FOR(j,0,w){
			stuff.push_back(hashh({i,j}));
		}
	}

	for (auto&i : stuff){
		x.insert(i[0]);
		y.insert(i[1]);
	}
	vector<int> fx, fy, sx, sy;

	for (auto&i : x){
		vector<int> fir,sec;
		for (auto&j : stuff){
			if (j[0] == i) fir.push_back(unhashh(j));
			else if (j[0] == i-k || j[0] == i+k) sec.push_back(unhashh(j));
		}
		if (!(fir.size() && sec.size())){
			fx.push_back(add_xor({0,0}));
			fx.push_back(add_xor({0,0}));
			continue;
		}

		fx.push_back(add_xor(fir));
		fx.push_back(add_xor(sec));
	}
	for (auto&i : y){
		vector<int> fir,sec;
		for (auto&j : stuff){
			if (j[1] == i) fir.push_back(unhashh(j));
			else if (j[1] >= i-k && j[1] <= i+k) sec.push_back(unhashh(j));
		}
		if (!(fir.size() && sec.size())){
			fy.push_back(add_xor({0,0}));
			fy.push_back(add_xor({0,0}));
			continue;
		}

		fy.push_back(add_xor(fir));
		fy.push_back(add_xor(sec));
	}

	for (auto&i : y){
		vector<int> fir,sec;
		for (auto&j : stuff){
			if (j[1] == i) fir.push_back(unhashh(j));
			else if (j[1] == i-k || j[1] == i+k) sec.push_back(unhashh(j));
		}
		if (!(fir.size() && sec.size())){
			sy.push_back(add_xor({0,0}));
			sy.push_back(add_xor({0,0}));
			continue;
		}
		sy.push_back(add_xor(fir));
		sy.push_back(add_xor(sec));
	}

	for (auto&i : x){
		vector<int> fir,sec;
		for (auto&j : stuff){
			if (j[0] == i) fir.push_back(unhashh(j));
			else if (j[0] >= i-k && j[0] <= i+k) sec.push_back(unhashh(j));
		}
		if (!(fir.size() && sec.size())){
			sx.push_back(add_xor({0,0}));
			sx.push_back(add_xor({0,0}));
			continue;
		}
		sx.push_back(add_xor(fir));
		sx.push_back(add_xor(sec));
	}


	vector<int> ffx, ffy, ssx, ssy;
	while (fx.size()){
		ll temp1,temp2;
		temp1 = fx[fx.size()-1];
		temp2 = fx[fx.size()-2];
		ffx.push_back(add_and({temp1, temp2}));
		fx.pop_back();
		fx.pop_back();
	}
	while (fy.size()){
		ll temp1,temp2;
		temp1 = fy[fy.size()-1];
		temp2 = fy[fy.size()-2];
		ffy.push_back(add_and({temp1, temp2}));
		fy.pop_back();
		fy.pop_back();
	}
	while (sx.size()){
		ll temp1,temp2;
		temp1 = sx[sx.size()-1];
		temp2 = sx[sx.size()-2];
		ssx.push_back(add_and({temp1, temp2}));
		sx.pop_back();
		sx.pop_back();
	}
	while (sy.size()){
		ll temp1,temp2;
		temp1 = sy[sy.size()-1];
		temp2 = sy[sy.size()-2];
		ssy.push_back(add_and({temp1, temp2}));
		sy.pop_back();
		sy.pop_back();
	}

	ll a,b,c,d;
	a = add_or(ffx);
	b = add_or(ffy);
	c = add_or(ssx);
	d = add_or(ssy);

	ll aa = add_and({a,b});
	ll bb = add_and({c,d});
	add_or({aa,bb});

}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 11
• Subtask 3: 0 / 11
• Subtask 4: 0 / 15
• Subtask 5: 12 / 12
• Subtask 6: 0 / 8
• Subtask 7: 14 / 14
• Subtask 8: 0 / 19