結果
問題 | No.1665 quotient replace |
ユーザー |
|
提出日時 | 2021-09-03 22:26:17 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 253 ms / 3,000 ms |
コード長 | 2,795 bytes |
コンパイル時間 | 2,178 ms |
コンパイル使用メモリ | 195,908 KB |
最終ジャッジ日時 | 2025-01-24 06:14:59 |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 41 |
ソースコード
#line 1 "main.cpp"#pragma region Macros#include <bits/stdc++.h>using namespace std;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;}#ifdef DEBUGtemplate <class T, class U>ostream &operator<<(ostream &os, const pair<T, U> &p) {os << '(' << p.first << ',' << p.second << ')';return os;}template <class T> ostream &operator<<(ostream &os, const vector<T> &v) {os << '{';for(int i = 0; i < (int)v.size(); i++) {if(i) { os << ','; }os << v[i];}os << '}';return os;}void debugg() { cerr << endl; }template <class T, class... Args>void debugg(const T &x, const Args &... args) {cerr << " " << x;debugg(args...);}#define debug(...) \cerr << __LINE__ << " [" << #__VA_ARGS__ << "]: ", debugg(__VA_ARGS__)#define dump(x) cerr << __LINE__ << " " << #x << " = " << (x) << endl#else#define debug(...) (void(0))#define dump(x) (void(0))#endifstruct Setup {Setup() {cin.tie(0);ios::sync_with_stdio(false);cout << fixed << setprecision(15);}} __Setup;using ll = long long;#define ALL(v) (v).begin(), (v).end()#define RALL(v) (v).rbegin(), (v).rend()#define FOR(i, a, b) for(int i = (a); i < int(b); i++)#define REP(i, n) FOR(i, 0, n)const int INF = 1 << 30;const ll LLINF = 1LL << 60;constexpr int MOD = 1000000007;const int dx[4] = {1, 0, -1, 0};const int dy[4] = {0, 1, 0, -1};void Case(int i) { cout << "Case #" << i << ": "; }int popcount(int x) { return __builtin_popcount(x); }ll popcount(ll x) { return __builtin_popcountll(x); }#pragma endregion Macros#line 1 "/home/siro53/kyo-pro/compro_library/math/osa_k.hpp"// https://qiita.com/rsk0315_h4x/items/ff3b542a4468679fb409class osa_k {private:int N;vector<int> min_factor;public:osa_k(int N) : N(N), min_factor(N) {iota(ALL(min_factor), 0);for(int i = 2; i * i < N; i++) {if(min_factor[i] < i) continue;for(int j = i * i; j < N; j += i) {if(min_factor[j] == j) min_factor[j] = i;}}}vector<int> factor(int n) {vector<int> res;while(n > 1) {res.push_back(min_factor[n]);n /= min_factor[n];}return res;}};#line 72 "main.cpp"osa_k f(1000000 + 10);int main() {int N;cin >> N;int g = 0;REP(i, N) {int a;cin >> a;auto v = f.factor(a);g ^= (int)v.size();}cout << (g != 0 ? "white" : "black") << endl;}