Submission #245369

#	Time	Username	Problem	Language	Result	Execution time	Memory
245369		crossing0ver	Vision Program (IOI19_vision)	C++17	52 / 100	10 ms	640 KiB

vision

#include<bits/stdc++.h>
#define vi vector<int>
#define pii pair<int,int>
#define pb push_back
#ifndef local
#include "vision.h"
#endif
using namespace std;
int k,H,W;
int get_id(int i,int j) {
	return i*W+j;
}
void smallCase() {
	vector<pii> s;
	for (int i = 0; i < H; i++)
	for (int j = 0; j < W; j++)
	for (int a = i; a < H; a++)
	for (int b = 0; b < W; b++) {
			if (abs(i-a)+abs(j-b) == k) s.pb({get_id(i,j),get_id(a,b)});
		}
	int a = 0;
	for (auto i : s) {
		vector<int> v = {i.first,i.second};
		a|=add_and(v);
	}
	int x = s.size();
	vi v;
	for (int i = H*W; i < H*W + x;i++)
		v.pb(i);
	if (v.size() == 0) {
		add_and({0,1,2});
		return;
	}
	add_or(v);
}
void SMALL() {
	int cnt = 0;
	for (int i = 0;i < H; i++)
	for (int j = 0;j < W; j++) {
		vector<int> s;
	for (int a = 0; a < H; a++)
	for (int b = 0; b < W; b++) {
			if (abs(i-a)+abs(j-b) == k) s.pb(get_id(a,b));
	}
	if (s.size()) {
	add_or(s);
	cnt++;
	}
	else {
		add_and({0,1,2});
		cnt++;
	}
	}
	int st = H*W;
	int en = H*W*2;
	for (int i = H*W;i < 2*H*W; i++) {
		add_and({i,i - H*W});
		en++;
	}
	vi v;
	for (int i = H*W*2;i < H*W*3;i++)
		v.pb(i);
	add_or(v); 
}
void construct_network(int H1, int W1, int k1) {
	k = k1;
	H = H1, W = W1;
	vector<pii> s;
	if (max(H,W) <= 10 || min(H,W) == 1) {
		smallCase();
		return;
	}
  if (max(H,W) <= 30) {
    SMALL();
    return;
  }
	vector<int> v;
	int cnt = 0;
	for (int i = 0; i < H;i++)
	for (int j = 0;j < W; j++) 
		if (i + j == k) {
			add_and({0,get_id(i,j)});
			cnt++;
		}
	for (int i = H*W; i < H*W + cnt; i++)
		v.pb(i);
	add_or(v);
	
}

Compilation message (stderr)

vision.cpp: In function 'void SMALL()':
vision.cpp:54:6: warning: unused variable 'st' [-Wunused-variable]
  int st = H*W;
      ^~

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