#838571 (C++17) No.2205 Lights Out on Christmas Tree

提出ソース

結果

問題	No.2205 Lights Out on Christmas Tree
ユーザー	abc23
提出日時	2023-02-10 21:30:21
言語	C++17 (gcc 12.3.0 + boost 1.83.0)
結果	AC
実行時間	198 ms / 2,000 ms
コード長	5,986 bytes
コンパイル時間	2,094 ms
コンパイル使用メモリ	212,720 KB
実行使用メモリ	42,240 KB
最終ジャッジ日時	2024-07-07 15:41:08
合計ジャッジ時間	10,011 ms
ジャッジサーバーID （参考情報）	judge5 / judge1

このコードへのチャレンジ
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テストケース

テストケース表示

入力	結果	実行時間実行使用メモリ
testcase_00	AC	2 ms 5,248 KB
testcase_01	AC	2 ms 5,376 KB
testcase_02	AC	2 ms 5,376 KB
testcase_03	AC	2 ms 5,376 KB
testcase_04	AC	2 ms 5,376 KB
testcase_05	AC	2 ms 5,376 KB
testcase_06	AC	2 ms 5,376 KB
testcase_07	AC	2 ms 5,376 KB
testcase_08	AC	2 ms 5,376 KB
testcase_09	AC	2 ms 5,376 KB
testcase_10	AC	2 ms 5,376 KB
testcase_11	AC	169 ms 26,256 KB
testcase_12	AC	172 ms 26,256 KB
testcase_13	AC	164 ms 26,256 KB
testcase_14	AC	145 ms 26,384 KB
testcase_15	AC	198 ms 42,240 KB
testcase_16	AC	117 ms 17,568 KB
testcase_17	AC	115 ms 17,696 KB
testcase_18	AC	2 ms 5,376 KB
testcase_19	AC	176 ms 25,964 KB
testcase_20	AC	179 ms 25,328 KB
testcase_21	AC	177 ms 24,908 KB
testcase_22	AC	164 ms 26,768 KB
testcase_23	AC	176 ms 25,120 KB
testcase_24	AC	174 ms 25,504 KB
testcase_25	AC	183 ms 24,864 KB
testcase_26	AC	194 ms 24,576 KB
testcase_27	AC	175 ms 27,404 KB
testcase_28	AC	161 ms 27,596 KB
testcase_29	AC	165 ms 26,916 KB
testcase_30	AC	192 ms 24,320 KB
testcase_31	AC	187 ms 27,192 KB
testcase_32	AC	182 ms 25,240 KB
testcase_33	AC	180 ms 25,580 KB
testcase_34	AC	173 ms 25,344 KB
testcase_35	AC	191 ms 24,220 KB
testcase_36	AC	189 ms 24,520 KB
testcase_37	AC	174 ms 25,804 KB
testcase_38	AC	195 ms 24,320 KB
testcase_39	AC	173 ms 26,108 KB

権限があれば一括ダウンロードができます

ソースコード

raw source code

#if !__INCLUDE_LEVEL__

#include __FILE__

int n;
V<V<int>> g;
V<int> col;
V<V<P>> x;
void dfs(int now=0,int d=0,int p=-1){
  x[d].emplace_back(now,p);
  for(auto next:g[now]){
    if(next==p)continue;
    dfs(next,d+1,now);
  }
  return ;
}
struct Solver {
void solve() {
  cin>>n;
  g=V<V<int>> (n);
  x=V<V<P>>(n);
  col=V<int>(n);
  rep(i,n-1){
    int a,b;cin>>a>>b;
    a--;b--;
    g[a].emplace_back(b);
    g[b].emplace_back(a);
  }
  dfs();
  rep(i,n)cin>>col[i];
  int ans=0;
  if(count(all(col),0)%2){
    cout<<-1<<endl;
    return ;
  }
  rrep(i,n){
    rep(j,sz(x[i])){
      if(col[x[i][j].first])continue;
      if(x[i][j].second==-1)continue;
      col[x[i][j].first]=1-col[x[i][j].first];
      col[x[i][j].second]=1-col[x[i][j].second];
      ans++;
    }
  }
  cout<<ans<<endl;
}};

signed main() {
  int ts = 1;
  // scanf("%lld",&ts);
  rep(ti,ts) {
    Solver solver;
    solver.solve();
  }
  return 0;
}

#else

#include <bits/stdc++.h>
// #include <atcoder/all>
// using namespace atcoder;
// #include <ext/pb_ds/assoc_container.hpp>
// #include <ext/pb_ds/tree_policy.hpp>
// using namespace __gnu_pbds;

using namespace std;

#define int ll
using ll=long long;
using ld = long double;
using uint = unsigned;
using ull = unsigned long long;
using P=pair<int,int>;
using TP=tuple<int,int,int>;

const int INF = 1001001001;
const long long INFL = 3e18;
const int MAX = 2e6+5;

#define FOR1(a) for (ll _ = 0; _ < ll(a); ++_)
#define FOR2(i, a) for (ll i = 0; i < ll(a); ++i)
#define FOR3(i, a, b) for (ll i = a; i < ll(b); ++i)
#define FOR4(i, a, b, c) for (ll i = a; i < ll(b); i += (c))
#define FOR1_R(a) for (ll i = (a)-1; i >= ll(0); --i)
#define FOR2_R(i, a) for (ll i = (a)-1; i >= ll(0); --i)
#define FOR3_R(i, a, b) for (ll i = (b)-1; i >= ll(a); --i)
#define FOR4_R(i, a, b, c) for (ll i = (b)-1; i >= ll(a); i -= (c))
#define overload4(a, b, c, d, e, ...) e
#define rep(...) overload4(__VA_ARGS__, FOR4, FOR3, FOR2, FOR1)(__VA_ARGS__)
#define rrep(...) overload4(__VA_ARGS__, FOR4_R, FOR3_R, FOR2_R, FOR1_R)(__VA_ARGS__)
#define fore(i,a) for(auto &i:a)

#define all(x) x.begin(),x.end() 
#define allr(x) x.rbegin(),x.rend() 
#define sz(x) ((int)(x).size())
#define bp(x) (__builtin_popcountll((long long)(x)))
#define elif else if
#define mpa make_pair
#define bit(n) (1LL<<(n))
#define LB(c, x) distance((c).begin(), lower_bound(all(c), (x)))
#define UB(c, x) distance((c).begin(), upper_bound(all(c), (x)))

template<typename T> using V = vector<T>;
template<typename T> using max_heap = priority_queue<T>;
template<typename T> using min_heap = priority_queue<T, vector<T>, greater<>>;
template<typename T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<typename T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }
template<typename T>string join(const T&v,const string& d=""){stringstream s;rep(i,sz(v))(i?s<<d:s)<<v[i];return s.str();}
template<typename T>ostream& operator<<(ostream&o,const vector<T>&v){if(sz(v))o<<join(v," ");return o;}
template<typename T1,typename T2>ostream& operator<<(ostream&o,const pair<T1,T2>&v){return o<<v.first<<","<<v.second;}
template<typename Tx, typename Ty>Tx dup(Tx x, Ty y){return (x+y-1)/y;}
template<typename T>ll suma(const vector<T>&a){ll res(0);for(auto&&x:a)res+=x;return res;}
template<typename T>ll suma(const V<V<T>>&a){ll res(0);for(auto&&x:a)res+=suma(x);return res;}
template<typename T>void uni(T& a){sort(all(a));a.erase(unique(all(a)),a.end());}
template<typename T>void prepend(vector<T>&a,const T&x){a.insert(a.begin(),x);}
template<typename T>T vgcd(T m, T n) {return std::gcd(m, n);}
template<typename T, typename... Args>T vgcd(T a, Args... args) {return vgcd(a, vgcd(args...));}

void print(){ putchar(' '); }
void print(bool a){ printf("%d", a); }
// void print(int a){ printf("%d", a); }
void print(unsigned a){ printf("%u", a); }
void print(long a){ printf("%ld", a); }
void print(long long a){ printf("%lld", a); }
void print(unsigned long long a){ printf("%llu", a); }
void print(char a){ printf("%c", a); }
void print(char *a){ printf("%s", a); }
void print(const char *a){ printf("%s", a); }
void print(double a){ printf("%.15f", a); }
void print(long double a){ printf("%.15Lf", a); }
void print(const string& a){ for(auto&& i : a) print(i); }
template<typename T> void print(const complex<T>& a){ if(a.real() >= 0) print('+'); print(a.real()); if(a.imag() >= 0) print('+'); print(a.imag()); print('i'); }
template<typename T> void print(const vector<T>&);
template<typename T, size_t size> void print(const array<T, size>&);
template<typename T, typename L> void print(const pair<T, L>& p);
template<typename T, size_t size> void print(const T (&)[size]);
template<typename T> void print(const vector<T>& a){ if(a.empty()) return; print(a[0]); for(auto i = a.begin(); ++i != a.end(); ){ putchar(' '); print(*i); } }
template<typename T> void print(const deque<T>& a){ if(a.empty()) return; print(a[0]); for(auto i = a.begin(); ++i != a.end(); ){ putchar(' '); print(*i); } }
template<typename T, size_t size> void print(const array<T, size>& a){ print(a[0]); for(auto i = a.begin(); ++i != a.end(); ){ putchar(' '); print(*i); } }
template<typename T, typename L> void print(const pair<T, L>& p){ print(p.first); putchar(' '); print(p.second); }
template<typename T, size_t size> void print(const T (&a)[size]){ print(a[0]); for(auto i = a; ++i != end(a); ){ putchar(' '); print(*i); } }
template<typename T> void print(const T& a){ cout << a; }
int out(){ putchar('\n'); return 0; }
template<typename T> int out(const T& t){ print(t); putchar('\n'); return 0; }
template<typename Head, typename... Tail> int out(const Head& head, const Tail&... tail){ print(head); putchar(' '); out(tail...); return 0; }


ll binary_search(function<bool(ll)> check, ll ok, ll ng) {
assert(check(ok));
  while (abs(ok - ng) > 1) {
    auto x = (ng + ok) / 2;
    if (check(x))
      ok = x;
    else
      ng = x;
  }
  return ok;
}

#endif

yukicoder

結果

テストケース

ソースコード