Submission #408689

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
408689	2021-05-19 13:37:13	Jasiekstrz	Mecho (IOI09_mecho)	C++17	100 / 100	438 ms	8864 KiB

mecho

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#include<bits/stdc++.h>
#define fi first
#define se second
using namespace std;
const int INF=1e9+7;
const int N=800;
struct Pos
{
  int x,y;
  Pos(int _x=0,int _y=0) : x(_x), y(_y) {};
  bool operator==(const Pos &oth)
  {
    return (x==oth.x && y==oth.y);
  }
  vector<Pos> edges()
  {
    vector<Pos> tmp;
    tmp.reserve(4);
    for(auto dd:{make_pair(0,-1),make_pair(0,1),make_pair(-1,0),make_pair(1,0)})
      tmp.push_back({x+dd.fi,y+dd.se});
    return tmp;
  }
};
bool fr[N+10][N+10];
queue<Pos> qq;
int bt[N+10][N+10];
pair<int,int> d[N+10][N+10];
bool ok(Pos start,Pos finish,int s,int time,int n)
{
  for(int i=1;i<=n;i++)
 
 
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• Subtask 1: 100 / 100