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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#214988#6550. Elimination Raceucup-team180#WA 1ms3436kbC++179.6kb2023-10-15 01:59:302023-10-15 01:59:31

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你现在查看的是最新测评结果

  • [2023-10-15 01:59:31]
  • 评测
  • 测评结果:WA
  • 用时:1ms
  • 内存:3436kb
  • [2023-10-15 01:59:30]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
using ull = unsigned long long;
typedef pair<ll,ll> pll;
typedef vector<ll> vll;
typedef vector<pll> vpll;
template<class T> using pqmin = priority_queue<T, vector<T>, greater<T>>;
template<class T> using pqmax = priority_queue<T>;
const ll inf=LLONG_MAX/3;
const ll dx[] = {0, 1, 0, -1, 1, -1, 1, -1};
const ll dy[] = {1, 0, -1, 0, 1, 1, -1, -1};
#define mp make_pair
#define pb push_back
#define eb emplace_back
#define fi first
#define se second
#define all(x) x.begin(),x.end()
#define si(x) ll(x.size())
#define rep(i,n) for(ll i=0;i<n;i++)
#define per(i,n) for(ll i=n-1;i>=0;i--)
#define rng(i,l,r) for(ll i=l;i<r;i++)
#define gnr(i,l,r) for(ll i=r-1;i>=l;i--)
#define fore(i, a) for(auto &&i : a)
#define fore2(a, b, v) for(auto &&[a, b] : v)
#define fore3(a, b, c, v) for(auto &&[a, b, c] : v)
template<class T> bool chmin(T& a, const T& b){ if(a <= b) return 0; a = b; return 1; }
template<class T> bool chmax(T& a, const T& b){ if(a >= b) return 0; a = b; return 1; }
template<class T, class U> bool chmin(T& a, const U& b){ return chmin(a, (T)b); }
template<class T, class U> bool chmax(T& a, const U& b){ return chmax(a, (T)b); }
#define LL(...) ll __VA_ARGS__;in(__VA_ARGS__)
#define STR(...) string __VA_ARGS__;in(__VA_ARGS__)
#define CHR(...) char __VA_ARGS__;in(__VA_ARGS__)
#define vec(type,name,...) vector<type>name(__VA_ARGS__)
#define VEC(type,name,size) vector<type>name(size);in(name)
#define VLL(name,size) vector<ll>name(size);in(name)
#define vv(type,name,h,...) vector<vector<type>> name(h,vector<type>(__VA_ARGS__))
#define VV(type,name,h,w) vector<vector<type>> name(h,vector<type>(w));in(name)
#define vvv(type,name,h,w,...) vector<vector<vector<type>>> name(h,vector<vector<type>>(w,vector<type>(__VA_ARGS__)))
#define SUM(...) accumulate(all(__VA_ARGS__),0LL)
template<class T> auto min(const T& a){ return *min_element(all(a)); }
template<class T> auto max(const T& a){ return *max_element(all(a)); }
template<class T, class F = less<>> void sor(T& a, F b = F{}){ sort(all(a), b); }
template<class T> void uniq(T& a){ sor(a); a.erase(unique(all(a)), end(a)); }
void outb(bool x){cout<<(x?"Yes":"No")<<"\n";}
ll max(int x, ll y) { return max((ll)x, y); }
ll max(ll x, int y) { return max(x, (ll)y); }
int min(int x, ll y) { return min((ll)x, y); }
int min(ll x, int y) { return min(x, (ll)y); }
#define lb(c, x) distance((c).begin(), lower_bound(all(c), (x)))
#define lbg(c, x) distance((c).begin(), lower_bound(all(c), (x), greater{}))
#define ub(c, x) distance((c).begin(), upper_bound(all(c), (x)))
#define ubg(c, x) distance((c).begin(), upper_bound(all(c), (x), greater{}))
ll gcd(ll a,ll b){return (b?gcd(b,a%b):a);}
vector<pll> factor(ull x){ vector<pll> ans; for(ull i = 2; i * i <= x; i++) if(x % i == 0){ ans.push_back({i, 1}); while((x /= i) % i == 0) ans.back().second++; } if(x != 1) ans.push_back({x, 1}); return ans; }
vector<ll> divisor(ull x){ vector<ll> ans; for(ull i = 1; i * i <= x; i++) if(x % i == 0) ans.push_back(i); per(i,ans.size() - (ans.back() * ans.back() == x)) ans.push_back(x / ans[i]); return ans; }
vll prime_table(ll n){vec(ll,isp,n+1,1);vll res;rng(i,2,n+1)if(isp[i]){res.pb(i);for(ll j=i*i;j<=n;j+=i)isp[j]=0;}return res;}

template <class T, class S> pair<T, S> operator-(const pair<T, S> &x) { return pair<T, S>(-x.first, -x.second); }
template <class T, class S> pair<T, S> operator-(const pair<T, S> &x, const pair<T, S> &y) { return pair<T, S>(x.fi - y.fi, x.se - y.se); }
template <class T, class S> pair<T, S> operator+(const pair<T, S> &x, const pair<T, S> &y) { return pair<T, S>(x.fi + y.fi, x.se + y.se); }
template <class T> pair<T, T> operator&(const pair<T, T> &l, const pair<T, T> &r) { return pair<T, T>(max(l.fi, r.fi), min(l.se, r.se)); }
template <class T, class S> pair<T, S> operator+=(pair<T, S> &l, const pair<T, S> &r) { return l = l + r; }
template <class T, class S> pair<T, S> operator-=(pair<T, S> &l, const pair<T, S> &r) { return l = l - r; }
template <class T> bool intersect(const pair<T, T> &l, const pair<T, T> &r) { return (l.se < r.se ? r.fi < l.se : l.fi < r.se); }

template <class T> vector<T> &operator++(vector<T> &v) {
    fore(e, v) e++;
    return v;
}
template <class T> vector<T> operator++(vector<T> &v, int) {
    auto res = v;
    fore(e, v) e++;
    return res;
}
template <class T> vector<T> &operator--(vector<T> &v) {
    fore(e, v) e--;
    return v;
}
template <class T> vector<T> operator--(vector<T> &v, int) {
    auto res = v;
    fore(e, v) e--;
    return res;
}
template <class T> vector<T> &operator+=(vector<T> &l, const vector<T> &r) {
    fore(e, r) l.eb(e);
    return l;
}

template<class... Ts> void in(Ts&... t);
[[maybe_unused]] void print(){}
template<class T, class... Ts> void print(const T& t, const Ts&... ts);
template<class... Ts> void out(const Ts&... ts){ print(ts...); cout << '\n'; }
namespace IO{
#define VOID(a) decltype(void(a))
struct S{ S(){ cin.tie(nullptr)->sync_with_stdio(0); fixed(cout).precision(12); } }S;
template<int I> struct P : P<I-1>{};
template<> struct P<0>{};
template<class T> void i(T& t){ i(t, P<3>{}); }
void i(vector<bool>::reference t, P<3>){ int a; i(a); t = a; }
template<class T> auto i(T& t, P<2>) -> VOID(cin >> t){ cin >> t; }
template<class T> auto i(T& t, P<1>) -> VOID(begin(t)){ for(auto&& x : t) i(x); }
template<class T, size_t... idx> void ituple(T& t, index_sequence<idx...>){ in(get<idx>(t)...); }
template<class T> auto i(T& t, P<0>) -> VOID(tuple_size<T>{}){ ituple(t, make_index_sequence<tuple_size<T>::value>{}); }
template<class T> void o(const T& t){ o(t, P<4>{}); }
template<size_t N> void o(const char (&t)[N], P<4>){ cout << t; }
template<class T, size_t N> void o(const T (&t)[N], P<3>){ o(t[0]); for(size_t i = 1; i < N; i++){ o(' '); o(t[i]); } }
template<class T> auto o(const T& t, P<2>) -> VOID(cout << t){ cout << t; }
template<class T> auto o(const T& t, P<1>) -> VOID(begin(t)){ bool first = 1; for(auto&& x : t) { if(first) first = 0; else o(' '); o(x); } }
template<class T, size_t... idx> void otuple(const T& t, index_sequence<idx...>){ print(get<idx>(t)...); }
template<class T> auto o(T& t, P<0>) -> VOID(tuple_size<T>{}){ otuple(t, make_index_sequence<tuple_size<T>::value>{}); }
#undef VOID
}
#define unpack(a) (void)initializer_list<int>{(a, 0)...}
template<class... Ts> void in(Ts&... t){ unpack(IO::i(t)); }
template<class T, class... Ts> void print(const T& t, const Ts&... ts){ IO::o(t); unpack(IO::o((cout << ' ', ts))); }
#undef unpack

int main(){
      queue<pll> que;
  cin.tie(0);
  ios::sync_with_stdio(0);
  LL(n);
  VV(ll,ord,n-1,n);
  vv(ll,rank,n-1,n);
  rep(j,n-1){
    rep(i,n){
      ord[j][i]--;
      rank[j][ord[j][i]]=i;
    }
  }
  vec(ll,ideal_p,n-1,-1);
  ll max_pairs=0;
  rep(x,n){
    vv(ll,g,n-1);//race j -> person i, rank lower->higher
    rep(j,n-1){
      per(r,n){
        if(ord[j][r]==x)break;
        g[j].pb(ord[j][r]);
      }
    }
    vec(ll,p,n-1,-1);
    vec(ll,rp,n,-1);

    rep(j,n-1)if(~ideal_p[j]){
      if(rank[j][x]<rank[j][ideal_p[j]]){
        p[j]=ideal_p[j];
        rp[p[j]]=j;
      }
    }

    while(1){
      vec(ll,befl,n-1,-1);
      vec(ll,befr,n,-1);

      rep(j,n-1)if(!~p[j]){
        befl[j]=-2;
        que.push({j,0});
      }
      bool done=0;
while(!que.empty()) que.pop();
      while(!que.empty()){
        auto [v,typ]=que.front();
        que.pop();
        if(typ==0){
					rep(k,si(g[v])){
						ll u=g[v][k];
						if(befr[u]==-1){
							befr[u]=v;
							que.push({u,1});
						}
					}
        }
        else{
          if(~rp[v]){
            ll u=rp[v];
            if(befl[u]==-1){
              befl[u]=v;
              que.push({u,0});
            }
          }
          else{
            while(1){
              ll re=v;
              ll le=befr[v];
              p[le]=re;
              rp[re]=le;
              v=befl[le];
              if(v==-2)break;
            }
            done=1;
            break;
          }
        }
      }
      if(!done){
        break;
      }
    }

    ll cnt=0;
    rep(j,n-1)cnt+=p[j]>=0;
    bool ok=cnt==n-1;
    if(cnt>max_pairs){
      max_pairs=cnt;
      ideal_p=p;
    }
    // cout<<"cnt="<<cnt<<endl;

		// auto pp=p;
		// pp++;
		// out("p=",pp);
		// cout<<flush;

    vll ans;
    if(ok){
			vec(ll,used_race,n-1,0);
			vec(ll,used_value,n,0);
			vec(ll,last,n-1,n-1);
			while(si(ans)<n-1){
				vec(ll,f,n,-1);
				rep(j,n-1)if(!used_race[j]){
					f[p[j]]=ord[j][last[j]];
				}

				// out("f=",f);

				vec(ll,deg,n,0);
				{//namori->cycle
				rep(i,n)if(~f[i]){
					deg[f[i]]++;
				}
				// out("deg=",deg);
				queue<ll> q;
				rep(i,n){
					if(deg[i]==0&&~f[i])q.push(i);
				}
				while(!q.empty()){
					auto ii=q.front();
					q.pop();
					deg[f[ii]]--;
					if(deg[f[ii]]==0){
						q.push(f[ii]);
					}
				}
				}
        auto cop=p;
        rep(j,n-1)if(deg[p[j]]>0){
          cop[j]=f[p[j]];
        }
				// rep(i,n)if(deg[i]>0){
				// 	rep(j,n-1)if(p[j]==i){
				// 		cop[j]=f[i];
				// 	}
				// }
        swap(p,cop);
				// out("deg=",deg);
				// cout<<flush;

        bool done=0;
				rep(j,n-1)if(!used_race[j]&&p[j]==ord[j][last[j]]){
          done=1;
					ans.pb(j);
					used_race[j]=1;
					used_value[p[j]]=1;
					rep(jj,n-1)if(!used_race[jj]){
						while(used_value[ord[jj][last[jj]]])last[jj]--;
					}
          // break;
				}
        assert(done);
			}
    }
		if(si(ans)==n-1){
			outb(1);
      ans++;
      out(ans);
		}
    else{
      outb(0);
    }
  }
}

Details

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Test #1:

score: 0
Wrong Answer
time: 1ms
memory: 3436kb

input:

4
1 2 3 4
2 1 3 4
4 3 1 2

output:

No
No
No
No

result:

wrong answer Jury has the answer but participant has not