Submission #1013089

#	Time	Username	Problem	Language	Result	Execution time	Memory
1013089		vjudge1	Checker (COCI19_checker)	C++17	0 / 110	137 ms	5508 KiB

checker

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

#define ll long long
int const N=2e5+5;
int const mod=1e9+7;

int bk[N],fr[N];
int n;
bool check(){
	for(int i=1;i<n;i++){
		if(fr[i+1]==2 || bk[i]==n)
			continue;
		if(fr[i+1]+1>bk[i])
			return 0;
	}
	if(fr[1]==2 || bk[n]==n)
		return 1;
	if(fr[1]+1>bk[n])
		return 0;
	return 1;
}
int main(){
	int t;
	cin>>t;
	cin>>n;
	string col;
	cin>>col;
	for(int i=1;i<=n;i++){
		fr[i]=2;
		bk[i+1]=n;
	}
	for (int i = 0; i < n-3; ++i)
	{
		int a,b,c;
		cin>>a>>b>>c;
		if(a>b)
			swap(a,b);
		int ba=(b-a)+1;
		fr[a]=max(fr[a],ba);
		bk[a]=min(bk[a],ba);
		int ab=(n+1)-(b-a);
		fr[b]=max(fr[b],ab);
		bk[b]=min(bk[b],ab);
	}
	if(check()==0)
		cout<<"neispravna triangulacija"<<endl;
	else
		cout<<"tocno"<<endl;
	return 0;
}

• Subtask 1: 0 / 12
• Subtask 2: 0 / 17
• Subtask 3: 0 / 23
• Subtask 4: 0 / 23
• Subtask 5: 0 / 35