제출 #1208717

#제출 시각아이디문제언어결과실행 시간메모리
1208717asli_bgBrought Down the Grading Server? (CEOI23_balance)C++20
10 / 100
77 ms3396 KiB
#include <bits/stdc++.h> using namespace std; #include <ext/pb_ds/assoc_container.hpp> using namespace __gnu_pbds; //#include "light.h" #define int long long typedef pair<int,int> pii; typedef vector<int> vi; typedef vector<pii> vii; typedef vector<bool> vb; typedef long long ll; typedef pair<ll,ll> pll; typedef vector<pll> vll; typedef tree<pii,null_type,less<pii>,rb_tree_tag, tree_order_statistics_node_update> oset; #define fi first #define se second #define pb push_back #define pf push_front #define mid (l+r)/2 #define all(x) x.begin(),x.end() #define FOR(i,a) for(int i=0;i<(a);i++) #define FORE(i,a,b) for(int i=(a);i<(b);i++) #define cont(x) for(auto el:x) cout<<el<<' ';cout<<endl; #define contp(x) for(auto el:x) cout<<el.fi<<'-'<<el.se<<' ';cout<<endl; #define sp <<" "<< #define DEBUG(x) cout<<(#x) sp x<<endl #define carp(a,b) (((a%MOD)*(b%MOD))%MOD) #define topla(a,b) (((a%MOD)+(b%MOD))%MOD) const ll INF=1e18; const int MAXN=1e5+5; const int MOD=1e9+7; int n,s,t; int ans; vii a; signed main(){ ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); cin>>n>>s>>t; a.resize(n); FOR(i,n){ cin>>a[i].fi>>a[i].se; } ans=-1; for(int mask=0;mask<(1<<n);mask++){ vi bir(t+1,0); vi iki(t+1,0); for(int bt=0;bt<n;bt++){ if(mask&(1<<bt)){ iki[a[bt].fi]++; bir[a[bt].se]++; } else{ bir[a[bt].fi]++; iki[a[bt].se]++; } } bool f=true; FOR(i,n){ if(abs(bir[a[i].fi]-iki[a[i].fi])>1){ f=false; break; } if(abs(bir[a[i].se]-iki[a[i].se])>1){ f=false; break; } } if(f){ ans=mask; break; } } for(int bt=0;bt<n;bt++){ if(ans&(1<<bt)) swap(a[bt].fi,a[bt].se); } for(auto el:a) cout<<el.fi sp el.se<<endl; }
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