結果
問題 | No.2197 Same Dish |
ユーザー | ineedyourlovep |
提出日時 | 2023-01-20 22:32:51 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 6,090 bytes |
コンパイル時間 | 2,305 ms |
コンパイル使用メモリ | 210,708 KB |
実行使用メモリ | 16,764 KB |
最終ジャッジ日時 | 2024-06-23 10:30:11 |
合計ジャッジ時間 | 5,212 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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 | 54 ms
16,644 KB |
testcase_01 | AC | 54 ms
16,624 KB |
testcase_02 | AC | 9 ms
16,576 KB |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | AC | 54 ms
16,608 KB |
testcase_06 | AC | 9 ms
16,620 KB |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | AC | 54 ms
16,552 KB |
testcase_10 | WA | - |
testcase_11 | AC | 9 ms
16,756 KB |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | AC | 123 ms
16,580 KB |
testcase_22 | AC | 151 ms
16,636 KB |
ソースコード
#include <bits/stdc++.h> #define rep(i, a, n) for(int i = a; i < (n); i++) using namespace std; using ll = long long; using P = pair<int, int>; const int INF = 1001001001; const ll LINF = 1001002003004005006ll; //const int mod = 1000000007; const int mod = 998244353; //MINT struct mint { unsigned x; mint(): x(0) {} mint(ll x):x((x%mod+mod)%mod) {} mint operator-() const { return mint(0) - *this;} mint operator~() const { return mint(1) / *this;} mint& operator+=(const mint& a) { if((x+=a.x)>=mod) x-=mod; return *this;} mint& operator-=(const mint& a) { if((x+=mod-a.x)>=mod) x-=mod; return *this;} mint& operator*=(const mint& a) { x=(unsigned long long)x*a.x%mod; return *this;} mint& operator/=(const mint& a) { x=(unsigned long long)x*a.pow(mod-2).x%mod; return *this;} mint operator+(const mint& a) const { return mint(*this) += a;} mint operator-(const mint& a) const { return mint(*this) -= a;} mint operator*(const mint& a) const { return mint(*this) *= a;} mint operator/(const mint& a) const { return mint(*this) /= a;} mint pow(ll t) const { if (!t) return 1; mint res = pow(t>>1); res *= res; return (t&1)?res*x:res; } bool operator<(const mint& a) const { return x < a.x;} bool operator==(const mint& a) const { return x == a.x;} bool operator!=(const mint& a) const { return x != a.x;} }; mint ex(mint x, ll t) { return x.pow(t);} istream& operator>>(istream& i, mint& a) { unsigned long long t; i>>t; a=mint(t); return i;} ostream& operator<<(ostream& o, const mint& a) { return o<<a.x;} struct S{ ll val; int size; }; using F = ll; S op(S a, S b){ return {a.val + b.val, a.size + b.size};} S e(){ return {0, 1};} S mapping(F f, S x){ return {x.val + f*x.size, x.size};} F composition(F f, F g){ return f + g;} F id() { return 0;} template<class S, S (*op)(S, S), S (*e)(), class F, S (*mapping)(F, S), F (*composition)(F, F), F (*id)()> struct LSEG{ int n, size, log = 0; vector<S> d; vector<F> lz; LSEG(): LSEG(0) {} explicit LSEG(int n): LSEG(vector<S>(n, e())) {} explicit LSEG(const vector<S>& v): n((int)v.size()){ while((1<<log) < n) log++; size = 1<<log; d = vector<S>(2*size, e()); lz = vector<F>(size, id()); for(int i = 0; i < n; i++) d[size+i] = v[i]; for(int i = size-1; i >= 1; i--) update(i); } void update(int k){ d[k] = op(d[2*k], d[2*k+1]);} void all_apply(int k, F f){ d[k] = mapping(f, d[k]); if(k < size) lz[k] = composition(f, lz[k]); } void push(int k){ all_apply(2*k, lz[k]); all_apply(2*k+1, lz[k]); lz[k] = id(); } void set(int p, S x){ assert(0 <= p && p < n); p += size; for(int i = log; i >= 1; i--) push(p>>i); d[p] = x; for(int i = 1; i <= log; i++) update(p>>i); } S get(int p){ assert(0 <= p && p < n); p += size; for(int i = log; i >= 1; i--) push(p>>i); return d[p]; } S prod(int l, int r){ assert(0 <= l && l <= r && r <= n); if(l == r) return e(); l += size; r += size; for(int i = log; i >= 1; i--){ if(((l>>i)<<i) != l) push(l>>i); if(((r>>i)<<i) != r) push((r-1)>>i); } S sml = e(), smr = e(); while(l < r){ if(l&1) sml = op(sml, d[l++]); if(r&1) smr = op(d[--r], smr); l >>= 1; r >>= 1; } return op(sml, smr); } S all_prod() { return d[1];} void apply(int p, F f){ assert(0 <= p && p < n); p += size; for(int i = log; i >= 1; i--) push(p>>i); d[p] = mapping(f, d[p]); for(int i = 1; i <= log; i++) update(p>>i); } void apply(int l, int r, F f){ assert(0 <= l && l <= r && r <= n); if(l == r) return; l += size; r += size; for(int i = log; i >= 1; i--){ if(((l>>i)<<i) != l) push(l>>i); if(((r>>i)<<i) != r) push((r-1)>>i); } { int l2 = l, r2 = r; while(l < r){ if(l&1) all_apply(l++, f); if(r&1) all_apply(--r, f); l >>= 1; r >>= 1; } l = l2; r = r2; } for(int i = 1; i <= log; i++){ if(((l>>i)<<i) != l) update(l>>i); if(((r>>i)<<i) != r) update((r-1)>>i); } } template<bool (*g)(S)> int max_right(int l){return max_right(l, [](S x){ return g(x);});} template<class G> int max_right(int l, G g){ assert(0 <= l && l <= n); assert(g(e())); if(l == n) return n; l += size; for(int i = log; i >= 1; i--) push(l>>i); S sm = e(); do{ while((l&1) == 0) l >>= 1; if(!g(op(sm, d[l]))){ while(l < size){ push(l); l = 2*l; if(g(op(sm, d[l]))){ sm = op(sm, d[l]); l++; } } return l - size; } sm = op(sm, d[l]); l++; }while((l&-l) != l); return n; } template<bool (*g)(S)> int min_left(int r){ return min_left(r, [](S x){ return g(x);});} template<class G> int min_left(int r, G g){ assert(0 <= r && r <= n); assert(g(e())); if(r == 0) return 0; r += size; for(int i = log; i >= 1; i--) push((r-1)>>i); S sm = e(); do{ r--; while(r > 1 && (r&1)) r >>= 1; if(!g(op(d[r], sm))){ while(r < size){ push(r); r = 2*r + 1; if(g(op(d[r], sm))){ sm = op(d[r], sm); r--; } } return r + 1 - size; } sm = op(d[r], sm); }while((r&-r) != r); return 0; } }; // POWER_MODver. N^k % MOD ll mod_pow(ll n, ll k){ ll res = 1; for(; k > 0; k >>= 1){ if(k&1) res = (res*n)%mod; n = (n*n)%mod; } return res; } int main() { ll n, k; cin >> n >> k; LSEG<S, op, e, F, mapping, composition, id> seg(200005); rep(i, 0, n) { int l, r; cin >> l >> r; seg.apply(l, r, 1); } int flag = 1; ll mx = 0; rep(i, 0, 200005) { mx = max(mx, seg.get(i).val); if (seg.get(i).val >= 2) flag = 0; if (seg.get(i).val > k) { cout << mod_pow(k, n) << endl; return 0; } } if (flag) cout << 0 << endl; else { mint ans = k; cout << ans*mx*(mx-1)/2*mod_pow(k, n-2) << endl; } return 0; }