Submission #1025454

#	Time	Username	Problem	Language	Result	Execution time	Memory
1025454		pcc	Portal (BOI24_portal)	C++17	11 / 100	1 ms	604 KiB

Main

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

#define ll long long
#define pll pair<ll,ll>
#define fs first
#define sc second
pll a,b,c;

int main(){
	int N;
	cin>>N;
	if(N<=2){
		cout<<"-1\n";
		return 0;
	}
	cin>>a.fs>>a.sc>>b.fs>>b.sc>>c.fs>>c.sc;
	b.fs -= a.fs,b.sc-= a.sc;
	c.fs-=a.fs,c.sc-= a.sc;
	ll ans = c.fs*b.sc-c.sc*b.fs;
	if(ans == 0)cout<<"-1\n";
	else cout<<abs(ans)<<'\n';
	return 0;
}

• Subtask 1: 1 / 1
• Subtask 2: 10 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 29
• Subtask 5: 0 / 15
• Subtask 6: 0 / 35