結果
問題 | No.1290 Addition and Subtraction Operation |
ユーザー | sak |
提出日時 | 2020-12-01 21:57:47 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 93 ms / 2,000 ms |
コード長 | 2,310 bytes |
コンパイル時間 | 2,316 ms |
コンパイル使用メモリ | 208,428 KB |
実行使用メモリ | 7,168 KB |
最終ジャッジ日時 | 2024-09-13 03:11:21 |
合計ジャッジ時間 | 7,287 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
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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
6,812 KB |
testcase_01 | AC | 1 ms
6,944 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,944 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 2 ms
6,944 KB |
testcase_06 | AC | 2 ms
6,944 KB |
testcase_07 | AC | 2 ms
6,940 KB |
testcase_08 | AC | 2 ms
6,940 KB |
testcase_09 | AC | 2 ms
6,944 KB |
testcase_10 | AC | 2 ms
6,944 KB |
testcase_11 | AC | 2 ms
6,940 KB |
testcase_12 | AC | 2 ms
6,940 KB |
testcase_13 | AC | 2 ms
6,944 KB |
testcase_14 | AC | 2 ms
6,940 KB |
testcase_15 | AC | 2 ms
6,940 KB |
testcase_16 | AC | 2 ms
6,940 KB |
testcase_17 | AC | 2 ms
6,944 KB |
testcase_18 | AC | 2 ms
6,944 KB |
testcase_19 | AC | 2 ms
6,940 KB |
testcase_20 | AC | 2 ms
6,940 KB |
testcase_21 | AC | 2 ms
6,944 KB |
testcase_22 | AC | 2 ms
6,940 KB |
testcase_23 | AC | 2 ms
6,944 KB |
testcase_24 | AC | 2 ms
6,940 KB |
testcase_25 | AC | 2 ms
6,944 KB |
testcase_26 | AC | 2 ms
6,944 KB |
testcase_27 | AC | 2 ms
6,944 KB |
testcase_28 | AC | 2 ms
6,940 KB |
testcase_29 | AC | 2 ms
6,940 KB |
testcase_30 | AC | 2 ms
6,940 KB |
testcase_31 | AC | 2 ms
6,940 KB |
testcase_32 | AC | 2 ms
6,940 KB |
testcase_33 | AC | 2 ms
6,944 KB |
testcase_34 | AC | 2 ms
6,940 KB |
testcase_35 | AC | 2 ms
6,944 KB |
testcase_36 | AC | 2 ms
6,940 KB |
testcase_37 | AC | 2 ms
6,940 KB |
testcase_38 | AC | 2 ms
6,944 KB |
testcase_39 | AC | 2 ms
6,944 KB |
testcase_40 | AC | 2 ms
6,944 KB |
testcase_41 | AC | 2 ms
6,944 KB |
testcase_42 | AC | 43 ms
6,944 KB |
testcase_43 | AC | 42 ms
6,940 KB |
testcase_44 | AC | 43 ms
6,944 KB |
testcase_45 | AC | 43 ms
6,940 KB |
testcase_46 | AC | 42 ms
6,944 KB |
testcase_47 | AC | 42 ms
6,944 KB |
testcase_48 | AC | 42 ms
6,940 KB |
testcase_49 | AC | 43 ms
6,944 KB |
testcase_50 | AC | 43 ms
6,940 KB |
testcase_51 | AC | 43 ms
6,940 KB |
testcase_52 | AC | 43 ms
6,940 KB |
testcase_53 | AC | 43 ms
6,944 KB |
testcase_54 | AC | 43 ms
6,940 KB |
testcase_55 | AC | 43 ms
6,944 KB |
testcase_56 | AC | 43 ms
6,944 KB |
testcase_57 | AC | 36 ms
6,940 KB |
testcase_58 | AC | 46 ms
6,944 KB |
testcase_59 | AC | 34 ms
6,940 KB |
testcase_60 | AC | 76 ms
7,040 KB |
testcase_61 | AC | 61 ms
6,940 KB |
testcase_62 | AC | 65 ms
6,940 KB |
testcase_63 | AC | 44 ms
6,940 KB |
testcase_64 | AC | 23 ms
6,940 KB |
testcase_65 | AC | 30 ms
6,944 KB |
testcase_66 | AC | 53 ms
6,940 KB |
testcase_67 | AC | 79 ms
7,168 KB |
testcase_68 | AC | 65 ms
6,940 KB |
testcase_69 | AC | 46 ms
6,940 KB |
testcase_70 | AC | 42 ms
6,944 KB |
testcase_71 | AC | 50 ms
6,944 KB |
testcase_72 | AC | 30 ms
6,940 KB |
testcase_73 | AC | 56 ms
6,940 KB |
testcase_74 | AC | 22 ms
6,940 KB |
testcase_75 | AC | 27 ms
6,940 KB |
testcase_76 | AC | 43 ms
6,944 KB |
testcase_77 | AC | 83 ms
6,940 KB |
testcase_78 | AC | 77 ms
6,944 KB |
testcase_79 | AC | 59 ms
6,944 KB |
testcase_80 | AC | 93 ms
7,168 KB |
testcase_81 | AC | 92 ms
6,944 KB |
testcase_82 | AC | 68 ms
6,944 KB |
testcase_83 | AC | 93 ms
6,940 KB |
testcase_84 | AC | 88 ms
6,940 KB |
testcase_85 | AC | 51 ms
6,944 KB |
testcase_86 | AC | 41 ms
6,940 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; typedef long long ll; typedef pair<ll, ll> p_ll; template<class T> void debug(T itr1, T itr2) { auto now = itr1; while(now<itr2) { cout << *now << " "; now++; } cout << endl; } #define repr(i,from,to) for (ll i=(ll)from; i<(ll)to; i++) #define all(vec) vec.begin(), vec.end() #define rep(i,N) repr(i,0,N) #define per(i,N) for (int i=(int)N-1; i>=0; i--) const ll MOD = pow(10,9)+7; const ll LLINF = pow(2,61)-1; const int INF = pow(2,30)-1; vector<ll> fac; void c_fac(int x=pow(10,6)+10) { fac.resize(x,true); rep(i,x) fac[i] = i ? (fac[i-1]*i)%MOD : 1; } ll modpow(ll x, ll p) { ll result = 1, now = 1, pm = x; while (now<=p) { if (p&now) { result = result * pm % MOD; } now*=2; pm = pm*pm % MOD; } return result; } ll inv(ll a, ll m=MOD) { ll b = m, x = 1, y = 0; while (b!=0) { int d = a/b; a -= b*d; swap(a,b); x -= y*d; swap(x,y); } return (x+m)%m; } ll nck(ll n, ll k) { return fac[n]*inv(fac[k]*fac[n-k]%MOD)%MOD; } ll gcd(ll a, ll b) { if (a<b) swap(a,b); return b==0 ? a : gcd(b, a%b); } ll lcm(ll a, ll b) { return a/gcd(a,b)*b; } // ---------------------------------------------------------------------- // ---------------------------------------------------------------------- struct UnionFind { vector<ll> par, s; UnionFind(ll N) : par(N), s(N) { rep(i,N) { par[i] = i; s[i] = 1; } } ll root(ll x) { return par[x]==x ? x : par[x] = root(par[x]); } ll size(ll x) { return par[x]==x ? s[x] : s[x] = size(root(x)); } void unite(ll x, ll y) { ll rx=root(x), ry=root(y); if (rx!=ry) { s[rx] += s[ry]; par[ry] = rx; } } bool same(ll x, ll y) { ll rx=root(x), ry=root(y); return rx==ry; } }; // ---------------------------------------------------------------------- // ---------------------------------------------------------------------- int main() { ll N, M; cin >> N >> M; ll B[N]; rep(i,N) cin >> B[i]; ll l[M], r[M]; rep(i,M) { cin >> l[i] >> r[i]; l[i]--; } rep(i,N) if (i%2==1) B[i] *= -1; UnionFind uf(N+1); rep(i,N+1) { if (i==0) uf.s[i] = B[i]; else if (i==N) uf.s[i] = -1*B[i-1]; else uf.s[i] = B[i] - B[i-1]; } // debug(diff,diff+(N+1)); rep(i,M) uf.unite(l[i],r[i]); string result = "YES"; rep(i,N+1) if (uf.root(i)==i&&uf.s[i]!=0) result = "NO"; cout << result << endl; return 0; }