Submission #260400

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
260400	2020-08-10T08:21:21 Z	stefantaga	Tower Defense (CEOI19_towerdefense)	C++14	0 / 100	0 ms	384 KB

towerdefense

#include <bits/stdc++.h>

using namespace std;
int x,y,x2,y2,dist,nr,sensx,sensy,val,i;
int main()
{
    cin>> x2 >> y2;
    cin>> x >> y;
    cin>>nr;
    dist=abs(x-x2)+abs(y-y2);
    if (dist>nr)
    {
        cout<<"impossible";
        return 0;
    }
    if (dist==nr)
    {
        cout<<"0";
        return 0;
    }
    if (dist==1)
    {
        cout<<"impossible";
        cout<<"0";
    }
    if ((nr-dist)%2==1)
    {
        cout<<"impossible";
        return 0;
    }
    if (x!=x2&&y!=y2)
    {
        if (x<x2)
        {
            sensx=-1;
        }
        else
        {
            sensx=1;
        }
        if (y<y2)
        {
            sensy=-1;
        }
        else
        {
            sensy=1;
        }
        val=(nr-dist)/2;
        cout<<val*2<<'\n';
        for (i=1;i<=val;i++)
        {
            cout<<x2+sensx*i<<" "<<y2<<'\n';
            cout<<x2<<" "<<y2+sensy*i<<'\n';
        }
    }
    else
    if (x==x2)
    {
        if (x<x2)
        {
            sensx=-1;
        }
        else
        {
            sensx=1;
        }
        val=(nr-dist)/2;
        cout<<2*(val-1)+1<<'\n';
        cout<<x2+sensx<<" "<<y<<'\n';
        for (i=2;i<=val;i++)
        {
            cout<<x2+sensx<<" "<<y-i+1<<'\n';
            cout<<x2+sensx<<" "<<y+i-1<<'\n';
        }
    }
    else
    if (y==y2)
    {
        if (y<y2)
        {
            sensy=-1;
        }
        else
        {
            sensy=1;
        }
        val=(nr-dist)/2;
        cout<<2*(val-1)+1<<'\n';
        cout<<x2<<" "<<y+sensy<<'\n';
        for (i=2;i<=val;i++)
        {
            cout<<x2-i+1<<" "<<y+sensy<<'\n';
            cout<<x2+i-1<<" "<<y+sensy<<'\n';
        }
    }
    return 0;
}

Subtask #1

0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	256 KB	Output is correct
2	Correct	0 ms	256 KB	Output is correct
3	Correct	0 ms	256 KB	Output is correct
4	Incorrect	0 ms	256 KB	Distance from entrance to home is not d.
5	Halted	0 ms	0 KB	-

Subtask #2

0 / 28.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	0 ms	256 KB	Output is correct
3	Correct	0 ms	256 KB	Output is correct
4	Correct	0 ms	256 KB	Output is correct
5	Correct	0 ms	256 KB	Output is correct
6	Correct	0 ms	256 KB	Output is correct
7	Correct	0 ms	256 KB	Output is correct
8	Correct	0 ms	256 KB	Output is correct
9	Correct	0 ms	256 KB	Output is correct
10	Correct	0 ms	256 KB	Output is correct
11	Correct	0 ms	256 KB	Output is correct
12	Correct	0 ms	256 KB	Output is correct
13	Correct	0 ms	256 KB	Output is correct
14	Incorrect	0 ms	256 KB	Expected but did not find "impossible".
15	Halted	0 ms	0 KB	-

Subtask #3

0 / 47.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	256 KB	Output is correct
2	Correct	0 ms	256 KB	Output is correct
3	Correct	0 ms	256 KB	Output is correct
4	Incorrect	0 ms	256 KB	Distance from entrance to home is not d.
5	Halted	0 ms	0 KB	-