結果
問題 | No.1552 Simple Dice Game |
ユーザー | milanis48663220 |
提出日時 | 2021-06-18 21:46:40 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 538 ms / 2,500 ms |
コード長 | 3,108 bytes |
コンパイル時間 | 1,065 ms |
コンパイル使用メモリ | 119,272 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-06-22 20:08:05 |
合計ジャッジ時間 | 7,951 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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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
6,940 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 512 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 2 ms
6,940 KB |
testcase_06 | AC | 2 ms
6,940 KB |
testcase_07 | AC | 2 ms
6,944 KB |
testcase_08 | AC | 2 ms
6,940 KB |
testcase_09 | AC | 423 ms
6,944 KB |
testcase_10 | AC | 476 ms
6,944 KB |
testcase_11 | AC | 479 ms
6,944 KB |
testcase_12 | AC | 140 ms
6,940 KB |
testcase_13 | AC | 410 ms
6,944 KB |
testcase_14 | AC | 239 ms
6,940 KB |
testcase_15 | AC | 299 ms
6,940 KB |
testcase_16 | AC | 42 ms
6,940 KB |
testcase_17 | AC | 68 ms
6,940 KB |
testcase_18 | AC | 378 ms
6,944 KB |
testcase_19 | AC | 529 ms
6,944 KB |
testcase_20 | AC | 538 ms
6,944 KB |
testcase_21 | AC | 538 ms
6,940 KB |
testcase_22 | AC | 532 ms
6,944 KB |
testcase_23 | AC | 531 ms
6,944 KB |
コンパイルメッセージ
In constructor 'ModInt::ModInt(ll)', inlined from 'mint ave(ll, ll)' at main.cpp:132:12: main.cpp:30:26: warning: '<unnamed>.ModInt::v' may be used uninitialized [-Wmaybe-uninitialized] 30 | if(_v < 0) _v = (v%MOD)+MOD; | ^ main.cpp: In function 'mint ave(ll, ll)': main.cpp:132:20: note: '<anonymous>' declared here 132 | return mint(l+r)/2; | ^
ソースコード
#include <iostream> #include <algorithm> #include <iomanip> #include <vector> #include <queue> #include <set> #include <map> #include <tuple> #include <cmath> #include <numeric> #include <functional> #include <cassert> #define debug_value(x) cerr << "line" << __LINE__ << ":<" << __func__ << ">:" << #x << "=" << x << endl; #define debug(x) cerr << "line" << __LINE__ << ":<" << __func__ << ">:" << x << endl; template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; } template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; } using namespace std; typedef long long ll; const ll MOD = 998244353; class ModInt{ public: ll v; ModInt(ll _v = 0){ if(_v < 0) _v = (v%MOD)+MOD; if(_v >= MOD) _v %= MOD; v = _v; } ModInt operator+(ll n){ return ModInt((v+n)%MOD); } ModInt operator-(ll n){ return ModInt((v-n+MOD)%MOD); } ModInt operator*(ll n){ if(n >= MOD) n %= MOD; return ModInt((v*n)%MOD); } ModInt operator/(ll n){ return ModInt((ModInt(n).inv()*v).v%MOD); } void operator+=(ll n){ v = (v+n)%MOD; } void operator-=(ll n){ v = (v-n+MOD)%MOD; } void operator*=(ll n){ v = (v*n+MOD)%MOD; } ModInt operator+(ModInt n){ return ModInt((v+n.v)%MOD); } ModInt operator-(ModInt n){ return ModInt((v-n.v+MOD)%MOD); } ModInt operator*(ModInt n){ return ModInt((v*n.v)%MOD); } ModInt operator/(ModInt n){ return ModInt((n.inv()*v).v%MOD); } void operator+=(ModInt n){ v = (v+n.v)%MOD; } void operator-=(ModInt n){ v = (v-n.v+MOD)%MOD; } void operator*=(ModInt n){ v = (v*n.v)%MOD; } void operator=(ModInt n){ v = n.v; } bool operator==(ModInt n){ return v == n.v; } bool operator!=(ModInt n){ return v != n.v; } void operator=(ll n){ v = n%MOD; } ModInt inv(){ if(v == 1) return ModInt(1); else return ModInt(MOD-ModInt(MOD%v).inv().v*(MOD/v)%MOD); } }; ostream& operator<<(ostream& os, const ModInt& m){ os << m.v; return os; } istream & operator >> (istream &in, ModInt &m){ in >> m.v; return in; } ModInt pow(ModInt a, ll n) { assert(n >= 0); ModInt ans = 1; ModInt tmp = a; for (int i = 0; i <= 60; i++) { ll m = (ll)1 << i; if (m & n) { ans *= tmp; } tmp *= tmp; } return ans; } using mint = ModInt; ll sum(ll l, ll r){ // l+ ... + r if(l > r) return 0; return ((l+r)*(r-l+1))/2; } mint ave(ll l, ll r){ return mint(l+r)/2; } int main(){ ios::sync_with_stdio(false); cin.tie(0); cout << setprecision(10) << fixed; ll n, m; cin >> n >> m; mint ans = 0; for(int x = 1; x <= m; x++){ ans += mint(x)*(ave(1, x)*pow(mint(x), n)*n-ave(1, x-1)*pow(mint(x-1), n)*n); ans -= mint(x)*(ave(x, m)*pow(mint(m-x+1), n)*n-ave(x+1, m)*pow(mint(m-x), n)*n); } cout << ans << endl; }