Submission #259782

#	Time	Username	Problem	Language	Result	Execution time	Memory
259782		MKopchev	Triangles (CEOI18_tri)	C++14	35 / 100	13 ms	384 KiB

tri

#include "trilib.h"
#include<bits/stdc++.h>
using namespace std;

int n;
/*
int get_n()
{
    cin>>n;
}
bool is_clockwise(int i,int j,int k)
{
    cout<<i<<" "<<j<<" "<<k<<" -> ";
    int ret;
    cin>>ret;
    return ret;
}
void give_answer(int sz)
{
    cout<<sz<<endl;
}
*/
set<int> hull;

int main()
{
	n=get_n();

	for(int i=1;i<=n;i++)
        for(int j=i+1;j<=n;j++)
        {
            bool in[2]={0,0};

            for(int k=1;k<=n;k++)
                if(k!=i&&k!=j)
                {
                    in[is_clockwise(i,j,k)]=1;

                    if(in[0]&&in[1])break;
                }

                if(in[0]==0||in[1]==0)
                {
                    hull.insert(i);
                    hull.insert(j);
                }
        }
	give_answer(hull.size());

	return 0;
}

Compilation message (stderr)

tri.cpp: In function 'int main()':
tri.cpp:34:13: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
             for(int k=1;k<=n;k++)
             ^~~
tri.cpp:42:17: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
                 if(in[0]==0||in[1]==0)
                 ^~

• Subtask 1: 15 / 15
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 20 / 20
• Subtask 5: 0 / 25