結果

問題 No.1290 Addition and Subtraction Operation
ユーザー heno239heno239
提出日時 2020-11-15 18:20:43
言語 C++14
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 36 ms / 2,000 ms
コード長 4,123 bytes
コンパイル時間 1,890 ms
コンパイル使用メモリ 128,784 KB
実行使用メモリ 9,796 KB
最終ジャッジ日時 2023-09-30 07:02:34
合計ジャッジ時間 6,710 ms
ジャッジサーバーID
(参考情報)
judge13 / judge14
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 4 ms
7,488 KB
testcase_01 AC 4 ms
7,604 KB
testcase_02 AC 4 ms
7,548 KB
testcase_03 AC 4 ms
7,448 KB
testcase_04 AC 5 ms
7,544 KB
testcase_05 AC 4 ms
7,552 KB
testcase_06 AC 4 ms
7,496 KB
testcase_07 AC 4 ms
7,460 KB
testcase_08 AC 4 ms
7,452 KB
testcase_09 AC 4 ms
7,676 KB
testcase_10 AC 4 ms
7,448 KB
testcase_11 AC 4 ms
7,496 KB
testcase_12 AC 5 ms
7,700 KB
testcase_13 AC 4 ms
7,488 KB
testcase_14 AC 4 ms
7,684 KB
testcase_15 AC 4 ms
7,616 KB
testcase_16 AC 5 ms
7,488 KB
testcase_17 AC 5 ms
7,616 KB
testcase_18 AC 4 ms
7,544 KB
testcase_19 AC 5 ms
7,548 KB
testcase_20 AC 4 ms
7,608 KB
testcase_21 AC 4 ms
7,448 KB
testcase_22 AC 4 ms
7,456 KB
testcase_23 AC 4 ms
7,460 KB
testcase_24 AC 4 ms
7,460 KB
testcase_25 AC 4 ms
7,540 KB
testcase_26 AC 4 ms
7,704 KB
testcase_27 AC 4 ms
7,492 KB
testcase_28 AC 4 ms
7,556 KB
testcase_29 AC 4 ms
7,644 KB
testcase_30 AC 4 ms
7,440 KB
testcase_31 AC 4 ms
7,456 KB
testcase_32 AC 5 ms
7,452 KB
testcase_33 AC 4 ms
7,524 KB
testcase_34 AC 5 ms
7,608 KB
testcase_35 AC 4 ms
7,504 KB
testcase_36 AC 4 ms
7,608 KB
testcase_37 AC 5 ms
7,532 KB
testcase_38 AC 4 ms
7,444 KB
testcase_39 AC 4 ms
7,484 KB
testcase_40 AC 4 ms
7,608 KB
testcase_41 AC 4 ms
7,608 KB
testcase_42 AC 18 ms
7,512 KB
testcase_43 AC 18 ms
7,564 KB
testcase_44 AC 17 ms
7,512 KB
testcase_45 AC 18 ms
7,512 KB
testcase_46 AC 17 ms
7,548 KB
testcase_47 AC 18 ms
7,504 KB
testcase_48 AC 17 ms
7,620 KB
testcase_49 AC 17 ms
7,656 KB
testcase_50 AC 18 ms
7,568 KB
testcase_51 AC 18 ms
7,488 KB
testcase_52 AC 18 ms
7,460 KB
testcase_53 AC 18 ms
7,716 KB
testcase_54 AC 17 ms
7,724 KB
testcase_55 AC 18 ms
7,456 KB
testcase_56 AC 17 ms
7,772 KB
testcase_57 AC 19 ms
9,520 KB
testcase_58 AC 21 ms
9,516 KB
testcase_59 AC 18 ms
9,508 KB
testcase_60 AC 32 ms
9,660 KB
testcase_61 AC 27 ms
9,540 KB
testcase_62 AC 29 ms
9,508 KB
testcase_63 AC 21 ms
9,640 KB
testcase_64 AC 14 ms
9,652 KB
testcase_65 AC 16 ms
9,596 KB
testcase_66 AC 24 ms
9,644 KB
testcase_67 AC 33 ms
9,640 KB
testcase_68 AC 29 ms
9,652 KB
testcase_69 AC 22 ms
9,516 KB
testcase_70 AC 21 ms
9,540 KB
testcase_71 AC 23 ms
9,516 KB
testcase_72 AC 16 ms
9,648 KB
testcase_73 AC 26 ms
9,648 KB
testcase_74 AC 14 ms
9,508 KB
testcase_75 AC 15 ms
9,632 KB
testcase_76 AC 21 ms
9,516 KB
testcase_77 AC 33 ms
9,660 KB
testcase_78 AC 30 ms
9,796 KB
testcase_79 AC 25 ms
9,660 KB
testcase_80 AC 36 ms
9,636 KB
testcase_81 AC 35 ms
9,516 KB
testcase_82 AC 27 ms
9,540 KB
testcase_83 AC 35 ms
9,580 KB
testcase_84 AC 33 ms
9,652 KB
testcase_85 AC 21 ms
9,520 KB
testcase_86 AC 18 ms
9,520 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 #

#pragma GCC optimize("Ofast")
#pragma GCC target ("sse4")

#include<iostream>
#include<string>
#include<cstdio>
#include<vector>
#include<cmath>
#include<algorithm>
#include<functional>
#include<iomanip>
#include<queue>
#include<ciso646>
#include<random>
#include<map>
#include<set>
#include<bitset>
#include<stack>
#include<unordered_map>
#include<unordered_set>
#include<utility>
#include<cassert>
#include<complex>
#include<numeric>
#include<array>
using namespace std;

//#define int long long
typedef long long ll;

typedef unsigned long long ul;
typedef unsigned int ui;
constexpr ll mod = 1000000007;
const ll INF = mod * mod;
typedef pair<int, int>P;
#define stop char nyaa;cin>>nyaa;
#define rep(i,n) for(int i=0;i<n;i++)
#define per(i,n) for(int i=n-1;i>=0;i--)
#define Rep(i,sta,n) for(int i=sta;i<n;i++)
#define rep1(i,n) for(int i=1;i<=n;i++)
#define per1(i,n) for(int i=n;i>=1;i--)
#define Rep1(i,sta,n) for(int i=sta;i<=n;i++)
#define all(v) (v).begin(),(v).end()
typedef pair<ll, ll> LP;
typedef double ld;
typedef pair<ld, ld> LDP;
const ld eps = 1e-12;
const ld pi = acosl(-1.0);

ll mod_pow(ll x, ll n, ll m = mod) {
    ll res = 1;
    while (n) {
        if (n & 1)res = res * x % m;
        x = x * x % m; n >>= 1;
    }
    return res;
}
struct modint {
    ll n;
    modint() :n(0) { ; }
    modint(ll m) :n(m) {
        if (n >= mod)n %= mod;
        else if (n < 0)n = (n % mod + mod) % mod;
    }
    operator int() { return n; }
};
bool operator==(modint a, modint b) { return a.n == b.n; }
modint operator+=(modint& a, modint b) { a.n += b.n; if (a.n >= mod)a.n -= mod; return a; }
modint operator-=(modint& a, modint b) { a.n -= b.n; if (a.n < 0)a.n += mod; return a; }
modint operator*=(modint& a, modint b) { a.n = ((ll)a.n * b.n) % mod; return a; }
modint operator+(modint a, modint b) { return a += b; }
modint operator-(modint a, modint b) { return a -= b; }
modint operator*(modint a, modint b) { return a *= b; }
modint operator^(modint a, ll n) {
    if (n == 0)return modint(1);
    modint res = (a * a) ^ (n / 2);
    if (n % 2)res = res * a;
    return res;
}

ll inv(ll a, ll p) {
    return (a == 1 ? 1 : (1 - p * inv(p % a, a)) / a + p);
}
modint operator/(modint a, modint b) { return a * modint(inv(b, mod)); }

const int max_n = 1 << 18;
modint fact[max_n], factinv[max_n];
void init_f() {
    fact[0] = modint(1);
    for (int i = 0; i < max_n - 1; i++) {
        fact[i + 1] = fact[i] * modint(i + 1);
    }
    factinv[max_n - 1] = modint(1) / fact[max_n - 1];
    for (int i = max_n - 2; i >= 0; i--) {
        factinv[i] = factinv[i + 1] * modint(i + 1);
    }
}
modint comb(int a, int b) {
    if (a < 0 || b < 0 || a < b)return 0;
    return fact[a] * factinv[b] * factinv[a - b];
}

struct uf {
private:
    vector<int> par, ran;
public:
    uf(int n) {
        par.resize(n, 0);
        ran.resize(n, 0);
        rep(i, n) {
            par[i] = i;
        }
    }
    int find(int x) {
        if (par[x] == x)return x;
        else return par[x] = find(par[x]);
    }
    void unite(int x, int y) {
        x = find(x), y = find(y);
        if (x == y)return;
        if (ran[x] < ran[y]) {
            par[x] = y;
        }
        else {
            par[y] = x;
            if (ran[x] == ran[y])ran[x]++;
        }
    }
    bool same(int x, int y) {
        return find(x) == find(y);
    }
};

void solve() {
    int n, m; cin >> n >> m;
    vector<ll> b(n);
    rep(i, n)cin >> b[i];
    rep(i, n)if (i % 2)b[i] *= -1;
    uf u(n+1);
    rep(i, m) {
        int l, r; cin >> l >> r; l--; r--;
        u.unite(l, r + 1);
    }
    vector<ll> sum(n+1);
    rep(i, n + 1) {
        ll d = 0;
        if (i < n)d += b[i];
        if (i - 1 >= 0)d -= b[i - 1];
        sum[u.find(i)] += d;
        //cout << d << " " << "\n";
    }
    rep(i, n + 1) {
        if (sum[i] > 0) {
            cout << "NO\n"; return;
        }
    }
    cout << "YES\n";
}

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
   // cout << fixed << setprecision(15);
    //init_f();
    //init();
    //expr();
    //int t; cin >> t; rep(i, t)
    solve();
    return 0;
}
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