結果
問題 | No.2576 LCM Pattern |
ユーザー |
|
提出日時 | 2025-01-31 03:27:10 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 27 ms / 2,000 ms |
コード長 | 3,693 bytes |
コンパイル時間 | 1,488 ms |
コンパイル使用メモリ | 151,308 KB |
実行使用メモリ | 6,820 KB |
最終ジャッジ日時 | 2025-01-31 03:27:13 |
合計ジャッジ時間 | 2,932 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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ファイルパターン | 結果 |
---|---|
other | AC * 23 |
コンパイルメッセージ
main.cpp: In function ‘int main()’: main.cpp:128:16: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 128 | freopen(task".inp","r",stdin); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:129:16: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 129 | freopen(task".out","w",stdout); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:133:16: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 133 | freopen(task1".inp","r",stdin); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:134:16: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 134 | freopen(task1".out","w",stdout); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
ソースコード
// #pragma GCC optimize("Ofast,unroll-loops")#include <algorithm>#include <bitset>#include <complex>#include <deque>#include <exception>#include <fstream>#include <functional>#include <iomanip>#include <ios>#include <iosfwd>#include <iostream>#include <istream>#include <iterator>#include <limits>#include <locale>#include <map>#include <new>#include <numeric>#include <ostream>#include <queue>#include <set>#include <unordered_set>#include <sstream>#include <stack>#include <stdexcept>#include <streambuf>#include <string>#include <utility>#include <valarray>#include <vector>#include <cstring>#include <unordered_map>#include <cmath>#include <array>#include <cassert>#include <random>#include <chrono>using namespace std;#define BIT(i,j) (((i)>>(j))&1LL)#define MASK(i) (1LL<<(i))#define ALL(x) (x).begin(),(x).end()#define SZ(x) (int)(x).size()#define fi first#define se second#define ull unsigned long long#define ll long long#define ld long double#define vi vector<int>#define vvi vector<vi>#define vvvi vector<vvi>#define pii pair<int,int>#define vpii vector<pii>#define vvpii vector<vpii>#define endl "\n"#define MP make_pair#define int ll//------------------------------------------------------------------------------------------------//template<typename T1, typename T2> bool mini(T1 &a, T2 b){if(a>b){a=b;return true;}return false;}template<typename T1, typename T2> bool maxi(T1 &a, T2 b){if(a<b){a=b;return true;}return false;}template<typename T> T gcd(T a, T b) { while(b) { a %= b; swap(a,b); } return a; }template<typename T> T lcm(T a, T b) { return a/gcd(a,b)*b; }//-----------------------------------------------------------------------------------------------//const ll LINF = 1e18;const int INF = 1e9;const int LOG = 20;const int MAXN = 5e5+7;const int N = 1e2+3;const int MOD = 998244353;const int BASE = 1e5;const ld EPS = 1e-9;const ld PI = acos(-1);const int OFFSET = 1e3;//------------------------------------------------------------------------------------------------//void add(int &a, int b){a += b;if(a>=MOD) a -= MOD;if(a<0) a += MOD;}int POW(int a, int b){int res = 1;while(b){if(b&1) res = 1LL*res*a%MOD;a = 1LL*a*a%MOD;b /= 2;}return res;}map<int,int> dp;int n;int calc(int x){if(x==1) return 1;if(dp.count(x)) return dp[x];int &res = dp[x],cnt = 0;res = 0;// cerr << res << " " << x << " " << n << endl;for(int i = 1; i*i<=x; i++){if(x%i==0){add(res,-calc(i));if(x/i!=i) cnt += 2; else cnt += 1;if(i>1 && x/i!=i){add(res,-calc(x/i));}}}add(res,POW(cnt,n));return res;}void solve(){int m; cin >> n >> m;cout << calc(m);}signed main(){ios::sync_with_stdio(0);cin.tie(0); cout.tie(0);#define task "test"if(fopen(task".inp","r")){freopen(task".inp","r",stdin);freopen(task".out","w",stdout);}#define task1 "nothing"if(fopen(task1".inp","r")){freopen(task1".inp","r",stdin);freopen(task1".out","w",stdout);}int test = 1;while(test--){solve();}cerr << "\nTime elapsed: " << 1000*clock()/CLOCKS_PER_SEC << "ms\n";return 0;}/** /\_/\* (= ._.)* / >TL \>AC**/