結果

問題 No.1290 Addition and Subtraction Operation
ユーザー 👑 tute7627tute7627
提出日時 2020-11-13 23:13:18
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 76 ms / 2,000 ms
コード長 3,926 bytes
コンパイル時間 2,552 ms
コンパイル使用メモリ 213,012 KB
実行使用メモリ 11,416 KB
最終ジャッジ日時 2023-09-30 04:11:11
合計ジャッジ時間 7,783 ms
ジャッジサーバーID
(参考情報)
judge14 / judge15
このコードへのチャレンジ
(要ログイン)

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 1 ms
4,376 KB
testcase_01 AC 2 ms
4,380 KB
testcase_02 AC 2 ms
4,380 KB
testcase_03 AC 2 ms
4,376 KB
testcase_04 AC 2 ms
4,376 KB
testcase_05 AC 1 ms
4,376 KB
testcase_06 AC 2 ms
4,376 KB
testcase_07 AC 2 ms
4,376 KB
testcase_08 AC 2 ms
4,380 KB
testcase_09 AC 2 ms
4,376 KB
testcase_10 AC 2 ms
4,376 KB
testcase_11 AC 2 ms
4,380 KB
testcase_12 AC 2 ms
4,376 KB
testcase_13 AC 2 ms
4,380 KB
testcase_14 AC 1 ms
4,380 KB
testcase_15 AC 2 ms
4,380 KB
testcase_16 AC 2 ms
4,376 KB
testcase_17 AC 2 ms
4,376 KB
testcase_18 AC 2 ms
4,376 KB
testcase_19 AC 2 ms
4,380 KB
testcase_20 AC 1 ms
4,376 KB
testcase_21 AC 2 ms
4,380 KB
testcase_22 AC 2 ms
4,380 KB
testcase_23 AC 2 ms
4,380 KB
testcase_24 AC 2 ms
4,376 KB
testcase_25 AC 2 ms
4,380 KB
testcase_26 AC 2 ms
4,380 KB
testcase_27 AC 2 ms
4,380 KB
testcase_28 AC 1 ms
4,376 KB
testcase_29 AC 2 ms
4,376 KB
testcase_30 AC 1 ms
4,380 KB
testcase_31 AC 2 ms
4,380 KB
testcase_32 AC 2 ms
4,380 KB
testcase_33 AC 2 ms
4,380 KB
testcase_34 AC 2 ms
4,380 KB
testcase_35 AC 2 ms
4,376 KB
testcase_36 AC 2 ms
4,376 KB
testcase_37 AC 2 ms
4,376 KB
testcase_38 AC 2 ms
4,376 KB
testcase_39 AC 2 ms
4,376 KB
testcase_40 AC 2 ms
4,376 KB
testcase_41 AC 2 ms
4,376 KB
testcase_42 AC 19 ms
4,884 KB
testcase_43 AC 19 ms
4,932 KB
testcase_44 AC 19 ms
4,952 KB
testcase_45 AC 19 ms
4,892 KB
testcase_46 AC 18 ms
4,888 KB
testcase_47 AC 19 ms
4,852 KB
testcase_48 AC 19 ms
5,044 KB
testcase_49 AC 18 ms
4,848 KB
testcase_50 AC 19 ms
5,080 KB
testcase_51 AC 19 ms
4,836 KB
testcase_52 AC 19 ms
4,888 KB
testcase_53 AC 19 ms
4,832 KB
testcase_54 AC 18 ms
4,848 KB
testcase_55 AC 19 ms
4,848 KB
testcase_56 AC 20 ms
4,904 KB
testcase_57 AC 32 ms
9,072 KB
testcase_58 AC 44 ms
9,736 KB
testcase_59 AC 32 ms
8,792 KB
testcase_60 AC 74 ms
10,904 KB
testcase_61 AC 57 ms
10,376 KB
testcase_62 AC 64 ms
10,388 KB
testcase_63 AC 43 ms
9,596 KB
testcase_64 AC 14 ms
7,800 KB
testcase_65 AC 21 ms
8,576 KB
testcase_66 AC 51 ms
9,980 KB
testcase_67 AC 76 ms
11,416 KB
testcase_68 AC 60 ms
10,432 KB
testcase_69 AC 42 ms
9,584 KB
testcase_70 AC 36 ms
9,256 KB
testcase_71 AC 47 ms
9,840 KB
testcase_72 AC 21 ms
8,480 KB
testcase_73 AC 54 ms
10,176 KB
testcase_74 AC 14 ms
7,860 KB
testcase_75 AC 18 ms
8,320 KB
testcase_76 AC 36 ms
9,384 KB
testcase_77 AC 62 ms
10,376 KB
testcase_78 AC 58 ms
10,364 KB
testcase_79 AC 38 ms
9,384 KB
testcase_80 AC 74 ms
10,964 KB
testcase_81 AC 73 ms
10,968 KB
testcase_82 AC 55 ms
10,000 KB
testcase_83 AC 72 ms
10,960 KB
testcase_84 AC 72 ms
10,648 KB
testcase_85 AC 32 ms
8,888 KB
testcase_86 AC 19 ms
8,124 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

diff #

//#define _GLIBCXX_DEBUG

#include<bits/stdc++.h>
using namespace std;

#define endl '\n'
#define lfs cout<<fixed<<setprecision(10)
#define ALL(a)  (a).begin(),(a).end()
#define ALLR(a)  (a).rbegin(),(a).rend()
#define spa << " " <<
#define fi first
#define se second
#define MP make_pair
#define MT make_tuple
#define PB push_back
#define EB emplace_back
#define rep(i,n,m) for(ll i = (n); i < (ll)(m); i++)
#define rrep(i,n,m) for(ll i = (ll)(m) - 1; i >= (ll)(n); i--)
using ll = long long;
using ld = long double;
const ll MOD1 = 1e9+7;
const ll MOD9 = 998244353;
const ll INF = 1e18;
using P = pair<ll, ll>;
template<typename T1, typename T2>bool chmin(T1 &a,T2 b){if(a>b){a=b;return true;}else return false;}
template<typename T1, typename T2>bool chmax(T1 &a,T2 b){if(a<b){a=b;return true;}else return false;}
ll median(ll a,ll b, ll c){return a+b+c-max({a,b,c})-min({a,b,c});}
void ans1(bool x){if(x) cout<<"Yes"<<endl;else cout<<"No"<<endl;}
void ans2(bool x){if(x) cout<<"YES"<<endl;else cout<<"NO"<<endl;}
void ans3(bool x){if(x) cout<<"Yay!"<<endl;else cout<<":("<<endl;}
template<typename T1,typename T2>void ans(bool x,T1 y,T2 z){if(x)cout<<y<<endl;else cout<<z<<endl;}  
template<typename T>void debug(vector<vector<T>>&v,ll h,ll w){for(ll i=0;i<h;i++){cout<<v[i][0];for(ll j=1;j<w;j++)cout spa v[i][j];cout<<endl;}};
void debug(vector<string>&v,ll h,ll w){for(ll i=0;i<h;i++){for(ll j=0;j<w;j++)cout<<v[i][j];cout<<endl;}};
template<typename T>void debug(vector<T>&v,ll n){if(n!=0)cout<<v[0];for(ll i=1;i<n;i++)cout spa v[i];cout<<endl;};
template<typename T>vector<vector<T>>vec(ll x, ll y, T w){vector<vector<T>>v(x,vector<T>(y,w));return v;}
ll gcd(ll x,ll y){ll r;while(y!=0&&(r=x%y)!=0){x=y;y=r;}return y==0?x:y;}
vector<ll>dx={1,-1,0,0,1,1,-1,-1};vector<ll>dy={0,0,1,-1,1,-1,1,-1};
template<typename T>vector<T> make_v(size_t a,T b){return vector<T>(a,b);}
template<typename... Ts>auto make_v(size_t a,Ts... ts){return vector<decltype(make_v(ts...))>(a,make_v(ts...));}
template<typename T1, typename T2>ostream &operator<<(ostream &os, const pair<T1, T2>&p){return os << p.first << " " << p.second;}
template<typename T>ostream &operator<<(ostream &os, const vector<T> &v){for(auto &z:v)os << z << " ";cout<<"|"; return os;}
//mt19937 mt(chrono::steady_clock::now().time_since_epoch().count());
int popcount(ll x){return __builtin_popcountll(x);};
int poplow(ll x){return __builtin_ctzll(x);};
int pophigh(ll x){return 63 - __builtin_clzll(x);};
struct UnionFind {
  vector<ll> data;
  ll num;
  UnionFind(ll size) : data(size, -1) ,num(size){ }
  bool unite(ll x, ll y) {
    x = root(x); y = root(y);
    if (x != y) {
      if (data[y] < data[x]) swap(x, y);
      data[x] += data[y]; data[y] = x;
	  num--;
    }
    return x != y;
  }
  bool find(ll x, ll y) {
    return root(x) == root(y);
  }
  ll root(ll x) {
    return data[x] < 0 ? x : data[x] = root(data[x]);
  }
  ll size(ll x) {
    return -data[root(x)];
  }
};
int main(){
  cin.tie(nullptr);
  ios_base::sync_with_stdio(false);
  ll res=0,buf=0;
  bool judge = true;
  ll n,m;cin>>n>>m;
  vector<ll>b(n);
  rep(i,0,n)cin>>b[i];
  rep(i,0,n){
    if(i&1)b[i]*=-1;
  }
  vector<ll>c(n+1);
  rep(i,0,n-1)c[i+1]=b[i+1]-b[i];
  c[0]=b[0];
  c[n]=-b[n-1];
  UnionFind uf(n+1);
  vector<bool>t(n+1);
  vector<vector<ll>>g(n+1);
  rep(i,0,m){
    ll l,r;cin>>l>>r;l--;
    g[l].PB(r);
    g[r].PB(l);
    if(uf.find(l,r)){
      t[uf.root(l)]=true;
    }
    else{
      bool nxt=t[uf.root(l)]||t[uf.root(r)];
      uf.unite(l,r);
      t[uf.root(l)]=nxt;
    }
  }
  //debug(c,n+1);
  //debug(t,n+1);
  rep(i,0,n+1){
    if(i!=uf.root(i))continue;
    if(t[i])continue;
    auto dfs=[&](auto &&f,ll k,ll par)->ll{
      ll ret=c[k];
      for(auto to:g[k]){
        if(to==par)continue;
        ret+=f(f,to,k);
      }
      //cout<<k spa ret<<endl;
      return ret;
    };
    if(dfs(dfs,i,-1))judge=false;
  }
  ans2(judge);
  return 0;
}
0