結果

問題 No.2197 Same Dish
ユーザー Y68170842
提出日時 2023-01-21 16:05:30
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 81 ms / 2,000 ms
コード長 5,405 bytes
コンパイル時間 3,752 ms
コンパイル使用メモリ 259,136 KB
最終ジャッジ日時 2025-02-10 06:10:40
ジャッジサーバーID
（参考情報） 		judge4 / judge1
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 3
other AC * 20
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 #
プレゼンテーションモードにする

#if !__INCLUDE_LEVEL__
#include __FILE__
template<int MOD> struct Fp {
        long long val;
        constexpr Fp(long long v = 0) noexcept : val(v % MOD) {
                if (val < 0) val += MOD;
        }
        constexpr int getmod() { return MOD; }
        constexpr Fp operator - () const noexcept {
                return val ? MOD - val : 0;
        }
        constexpr Fp operator + (const Fp& r) const noexcept { return Fp(*this) += r; }
        constexpr Fp operator - (const Fp& r) const noexcept { return Fp(*this) -= r; }
        constexpr Fp operator * (const Fp& r) const noexcept { return Fp(*this) *= r; }
        constexpr Fp operator / (const Fp& r) const noexcept { return Fp(*this) /= r; }
        constexpr Fp& operator += (const Fp& r) noexcept {
                val += r.val;
                if (val >= MOD) val -= MOD;
                return *this;
        }
        constexpr Fp& operator -= (const Fp& r) noexcept {
                val -= r.val;
                if (val < 0) val += MOD;
                return *this;
        }
        constexpr Fp& operator *= (const Fp& r) noexcept {
                val = val * r.val % MOD;
                return *this;
        }
        constexpr Fp& operator /= (const Fp& r) noexcept {
                long long a = r.val, b = MOD, u = 1, v = 0;
                while (b) {
                        long long t = a / b;
                        a -= t * b; swap(a, b);
                        u -= t * v; swap(u, v);
                }
                val = val * u % MOD;
                if (val < 0) val += MOD;
                return *this;
        }
        constexpr bool operator == (const Fp& r) const noexcept {
                return this->val == r.val;
        }
        constexpr bool operator != (const Fp& r) const noexcept {
                return this->val != r.val;
        }
        friend constexpr ostream& operator << (ostream &os, const Fp<MOD>& x) noexcept {
                return os << x.val;
        }
        friend constexpr Fp<MOD> modpow(const Fp<MOD> &a, long long n) noexcept {
                if (n == 0) return 1;
                auto t = modpow(a, n / 2);
                t = t * t;
                if (n & 1) t = t * a;
                return t;
        }
};
// const int MOD = 1000000007;
const int MOD = 998244353;
using mint = Fp<MOD>;
// (a**n)%mod
// const int MOD = 1000000007;
// const int MOD = 998244353;
ll modpow(ll a,ll n){
        ll res=1;
        while(n>0){
                if(n&1){
                        res=res*a%MOD;
                }
                a=a*a%MOD;
                n>>=1;
        }
        return res;
}
struct Solver {
void solve() {
    int n,k;cin>>n>>k;
    V<int> l(n),r(n);
    V<P> lr;
    rep(i,n){
        cin>>l[i]>>r[i];
        lr.emplace_back(l[i],r[i]);
    }
    sort(all(lr));
    mint ans=modpow(k,n);
    mint now=1;
    
    min_heap<int> pq;
    rep(i,n){
        while(pq.size()!=0&&pq.top()<=lr[i].first)pq.pop();
        now*=(k-pq.size());
        pq.emplace(lr[i].second);
    }
    cout<<ans-now<<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>;
template <class T> using V = vector<T>;
template <class T> using max_heap = priority_queue<T>;
template <class T> using min_heap = priority_queue<T, vector<T>, greater<>>;
#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 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)))
#define UNIQUE(x) sort(all(x)), x.erase(unique(all(x)), x.end())
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class 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 T1,typename T2>bool mins(T1& x,const T2&y){if(x>y){x=y;return true;}else return false;}
template<typename T1,typename T2>bool maxs(T1& x,const T2&y){if(x<y){x=y;return true;}else return false;}
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(rng(a));a.erase(unique(rng(a)),a.end());}
template<typename T>void prepend(vector<T>&a,const T&x){a.insert(a.begin(),x);}
const int INF = 1001001001;
const ll INFL = 3e18;
const int MAX = 2e6+5;
#endif
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