Submission #1524453

Source Code Expand

#include<bits/stdc++.h>
using namespace std;
int a[100050];
int main(){
	int n;
	cin>>n;
	for(int i=0;i<n;i++)cin>>a[i];
	sort(a,a+n);
	int k=-1;
	int num=0;
	int p=0,q=0;
	for(int i=n-1;i>=0;i--){
		if(a[i]==k)num++;
		if(num==2){
			num=0;
			if(p==0)p=k;
			else if(q==0){
				q=k;
				break;
			}
			k=0;
		}
		else{
			num=1;
			k=a[i];
		}
	}
	long long ans=((long long)p)*(long long)q;
	cout<<ans<<endl;
	return 0;
}

Submission Info

Submission Time
Task C - Make a Rectangle
User test_wu
Language C++14 (GCC 5.4.1)
Score 300
Code Size 453 Byte
Status AC
Exec Time 60 ms
Memory 640 KiB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 300 / 300
Status
AC × 3
AC × 15
Set Name Test Cases
Sample sample1.txt, sample2.txt, sample3.txt
All sample1.txt, sample2.txt, sample3.txt, 1.txt, 2.txt, 3.txt, 4.txt, 5.txt, 6.txt, 7.txt, 8.txt, 9.txt, sample1.txt, sample2.txt, sample3.txt
Case Name Status Exec Time Memory
1.txt AC 60 ms 640 KiB
2.txt AC 30 ms 384 KiB
3.txt AC 59 ms 640 KiB
4.txt AC 60 ms 640 KiB
5.txt AC 29 ms 384 KiB
6.txt AC 57 ms 640 KiB
7.txt AC 55 ms 640 KiB
8.txt AC 23 ms 384 KiB
9.txt AC 31 ms 384 KiB
sample1.txt AC 1 ms 256 KiB
sample2.txt AC 1 ms 256 KiB
sample3.txt AC 1 ms 256 KiB