Submission #1208573

#TimeUsernameProblemLanguageResultExecution timeMemory
1208573asli_bgBrought Down the Grading Server? (CEOI23_balance)C++20
0 / 100
79 ms5560 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 say[MAXN]; /* 0--> fark yok 1--> solda 1 fazla var 2--> sagda 1 fazla var */ signed main(){ ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); int n,s,t; cin>>n>>s>>t; vii a(n+1); FORE(i,1,n+1){ cin>>a[i].fi>>a[i].se; } vii ans; FORE(i,1,n+1){ int bir=a[i].fi; int iki=a[i].se; if(say[bir]==1 or say[iki]==2){ swap(a[i].fi,a[i].se); } if(say[bir]+say[iki]==0){ if(bir!=iki){ say[bir]=1; say[iki]=2; } } else if(say[bir]+say[iki]==3){ say[bir]=say[iki]=0; } else swap(say[bir],say[iki]); } FORE(i,1,n+1) say[a[i].fi]=say[a[i].se]=0; for(int i=n;i>0;i--){ int bir=a[i].fi; int iki=a[i].se; if(say[bir]==1 or say[iki]==2){ ans.pb({iki,bir}); } else ans.pb({bir,iki}); if(say[bir]+say[iki]==0){ if(bir!=iki){ say[bir]=1; say[iki]=2; } } else if(say[bir]+say[iki]==3){ say[bir]=say[iki]=0; } else swap(say[bir],say[iki]); } for(auto el:ans) cout<<el.fi sp el.se<<endl; }
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