Submission #1296123

#	Time	Username	Problem	Language	Result	Execution time	Memory
1296123		PieArmy	Brought Down the Grading Server? (CEOI23_balance)	C++20	10 / 100	14 ms	13284 KiB

balance

#include<bits/stdc++.h>
typedef long long ll;
#define pb push_back
#define fr first
#define sc second
#define endl '\n'
using namespace std;
#define mid ((left+right)>>1)

int n,s,t;
int arr[100023][2];

int main(){
	ios_base::sync_with_stdio(23^23);cin.tie(NULL);
	cin>>n>>s>>t;
	for(int i=0;i<n;i++){
		cin>>arr[i][0]>>arr[i][1];
	}
	for(int i=0;i<(1<<n);i++){
		int cnt[t+1][2];
		for(auto&x:cnt){
			for(auto&y:x){
				y=0;
			}
		}
		for(int j=0;j<n;j++){
			cnt[arr[j][0]][(i>>j)&1]++;
			cnt[arr[j][1]][((i>>j)&1)^1]++;
		}
		bool b=true;
		for(int j=1;j<=t;j++){
			if(abs(cnt[j][0]-cnt[j][1])>1)b=false;
		}
		if(b){
			for(int j=0;j<n;j++){
				cout<<arr[j][(i>>j)&1]<<" "<<arr[j][((i>>j)&1)^1]<<endl;
			}
			return 0;
		}
	}
}

• Subtask 0: 0 / 0
• Subtask 1: 10 / 10
• Subtask 2-1: 0 / 15
• Subtask 2-2: 0 / 5
• Subtask 2-3: 0 / 5
• Subtask 3-1: 0 / 15
• Subtask 3-2: 0 / 5
• Subtask 3-3: 0 / 5
• Subtask 4-1: 0 / 20
• Subtask 4-2: 0 / 10
• Subtask 4-3: 0 / 10