結果

問題 No.1409 Simple Math in yukicoder
ユーザー kaikeykaikey
提出日時 2021-02-26 22:04:42
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 22 ms / 2,000 ms
コード長 3,860 bytes
コンパイル時間 2,191 ms
コンパイル使用メモリ 207,260 KB
最終ジャッジ日時 2025-01-19 05:29:51
ジャッジサーバーID
(参考情報)
judge5 / judge2
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 * 2
other AC * 58
権限があれば一括ダウンロードができます
コンパイルメッセージ
In function ‘lint mod_pow(lint, lint, lint)’,
    inlined from ‘int main()’ at main.cpp:121:31:
main.cpp:87:30: warning: ‘minroot’ may be used uninitialized [-Wmaybe-uninitialized]
   87 |                         (ret *= A);
      |                         ~~~~~^~~~~
main.cpp: In function ‘int main()’:
main.cpp:108:22: note: ‘minroot’ was declared here
  108 |                 lint minroot;
      |                      ^~~~~~~

ソースコード

diff #
プレゼンテーションモードにする

#include <bits/stdc++.h>
#include <random>
#include <chrono>
using namespace std; typedef unsigned long long _ulong; typedef long long int lint; typedef long double ld; typedef pair<lint, lint> plint; typedef
    pair<ld, ld> pld;
#define ALL(x) (x).begin(), (x).end()
#define SZ(x) ((lint)(x).size())
#define FOR(i, begin, end) for(lint i=(begin),i##_end_=(end);i<i##_end_;++i)
#define IFOR(i, begin, end) for(lint i=(end)-1,i##_begin_=(begin);i>=i##_begin_;--i)
#define REP(i, n) FOR(i,0,n)
#define IREP(i, n) IFOR(i,0,n)
#define endk '\n'
#define fi first
#define se second
struct fast_ios { fast_ios() { cin.tie(nullptr), ios::sync_with_stdio(false), cout << fixed << setprecision(20); }; } fast_ios_;
template<class T> auto add = [](T a, T b) -> T { return a + b; };
template<class T> auto f_max = [](T a, T b) -> T { return max(a, b); };
template<class T> auto f_min = [](T a, T b) -> T { return min(a, b); };
template<class T> using V = vector<T>;
using Vl = V<lint>; using VVl = V<Vl>;
template< typename T > ostream& operator<<(ostream& os, const vector< T >& v) {
for (int i = 0; i < (int)v.size(); i++) os << v[i] << (i + 1 != v.size() ? " " : "");
return os;
}
template< typename T >istream& operator>>(istream& is, vector< T >& v) {
for (T& in : v) is >> in;
return is;
}
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; }
lint gcd(lint a, lint b) { if (b == 0) return a; else return gcd(b, a % b); }
lint ceil(lint a, lint b) { return (a + b - 1) / b; }
lint digit(lint a) { return (lint)log10(a); }
lint e_dist(plint a, plint b) { return abs(a.fi - b.fi) * abs(a.fi - b.fi) + abs(a.se - b.se) * abs(a.se - b.se); }
lint m_dist(plint a, plint b) { return abs(a.fi - b.fi) + abs(a.se - b.se); }
bool check_overflow(lint a, lint b, lint limit) { return a > limit / b; } // a * b > c => true
void Worshall_Floyd(VVl& g) { REP(k, SZ(g)) REP(i, SZ(g)) REP(j, SZ(g)) chmin(g[i][j], g[i][k] + g[k][j]); }
const lint MOD1000000007 = 1000000007, MOD998244353 = 998244353, INF = 1e9;
lint dx[8] = { 1, 0, -1, 0, 1, -1, 1, -1 }, dy[8] = { 0, 1, 0, -1, -1, -1, 1, 1 };
bool YN(bool flag) { cout << (flag ? "YES" : "NO") << endk; return flag; } bool yn(bool flag) { cout << (flag ? "Yes" : "No") << endk; return flag; }
struct Edge {
lint from, to;
lint cost;
Edge() {
}
Edge(lint u, lint v, lint c) {
cost = c;
from = u;
to = v;
}
bool operator<(const Edge& e) const {
return cost < e.cost;
}
};
struct WeightedEdge {
lint to;
lint cost;
WeightedEdge(lint v, lint c = 1) {
to = v;
cost = c;
}
bool operator<(const WeightedEdge& e) const {
return cost < e.cost;
}
};
using WeightedGraph = V<V<WeightedEdge>>;
typedef pair<plint, lint> tlint;
typedef pair<plint, plint> qlint;
typedef pair<char, lint> valchar;
map< int64_t, int > prime_factor(int64_t n) {
map< int64_t, int > ret;
for (int64_t i = 2; i * i <= n; i++) {
while (n % i == 0) {
ret[i]++;
n /= i;
}
}
if (n != 1) ret[n] = 1;
return ret;
}
lint mod_pow(lint A, lint B, lint mod) {
lint ret = 1;
while (B > 0) {
if (B & 1) {
(ret *= A);
ret %= mod;
}
(A *= A);
A %= mod;
B >>= 1;
}
return ret;
}
lint T, A, B;
int main() {
cin >> T;
while (T--) {
cin >> A >> B;
if (A == 1 && B == 1) {
cout << 1 << endk;
continue;
}
lint P = A * B + 1;
auto ps = prime_factor(A * B);
lint minroot;
FOR(i, 2, P) {
bool flag = true;
for (plint v : ps) {
lint _v = i;
if (mod_pow(i, (P - 1) / v.first, A * B + 1) == 1) flag = false;
}
if (flag) {
minroot = i;
break;
}
}
Vl arr;
lint curr = 1, mul = mod_pow(minroot, A, A * B + 1);
REP(i, B) {
arr.push_back(curr);
curr *= mul;
curr %= A * B + 1;
}
sort(ALL(arr));
cout << arr << endk;
}
}
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