#881824 (C++11) No.2352 Sharpened Knife in Fall

提出ソース

結果

問題	No.2352 Sharpened Knife in Fall
ユーザー	ueta
提出日時	2023-06-16 22:14:09
言語	C++11 (gcc 11.4.0)
結果	WA
実行時間	-
コード長	9,001 bytes
コンパイル時間	2,374 ms
コンパイル使用メモリ	167,692 KB
実行使用メモリ	13,384 KB
最終ジャッジ日時	2024-06-24 14:42:20
合計ジャッジ時間	13,812 ms
ジャッジサーバーID （参考情報）	judge2 / judge4

このコードへのチャレンジ
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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	5 ms 11,844 KB
testcase_01	AC	5 ms 11,848 KB
testcase_02	AC	5 ms 11,976 KB
testcase_03	AC	5 ms 11,848 KB
testcase_04	AC	328 ms 13,132 KB
testcase_05	AC	5 ms 11,980 KB
testcase_06	WA	-
testcase_07	WA	-
testcase_08	WA	-
testcase_09	WA	-
testcase_10	WA	-
testcase_11	WA	-
testcase_12	WA	-
testcase_13	WA	-
testcase_14	WA	-
testcase_15	WA	-
testcase_16	AC	26 ms 11,976 KB
testcase_17	WA	-
testcase_18	WA	-
testcase_19	WA	-
testcase_20	WA	-
testcase_21	WA	-

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ソースコード

raw source code

#include <bits/stdc++.h>
#include <cstdint>
#define rp(n) for(int i=0;i<n;i++)
#define rep(i,n) for(int i=0;i<n;i++)
#define per(i,n) for(int i=n-1;i>=0;i--)
#define Rep(i,sta,n) for(int i=sta;i<n;i++)
#define Per(i,sta,n) for(int i=n-1;i>=sta;i--)
#define fore(i, a) for(auto &&i : a)
#define foreP(a, b, v) for(auto &&[a, b] : v)
#define foreP3(a, b, c, v) for(auto &&[a, b, c] : v)
#define fitr(itr, m) for(auto &&itr=m.begin();itr!=m.end();itr++)
#define all(v) (v).begin(),(v).end()
#define Sum(a) accumulate(all(a),0LL)
#define VC vector
#define TP tuple

using namespace std;
mt19937 engine(time(0));

using ll = long long;
using ld = long double;
constexpr long long mod = 998244353;
// constexpr long long mod = 1000000007;
// constexpr long long mod = 100000000000000003;
constexpr double PI=3.1415926535897932384626433832795028841971;
constexpr long long inf = INT_MAX;
constexpr long long infll = LONG_MAX;

int dx[8] = {1, 0,-1, 0, 1, 1,-1,-1};
int dy[8] = {0, 1, 0,-1, 1,-1, 1,-1 };

using Si =set<int>;
using Sll =set<long long>;
using Sc =set<char>;
using Ss =set<string>;
using Mii = map<int,int>;
using Msi = map<string,int>;
using Mci = map<char,int>;
using Mlli = map<long long,int>;
using T3 = tuple<int, int, int>;
using TL3 = tuple<long long,long long,long long>;
using P = pair<int, int>;
using PL = pair<long long, long long>;
using V = vector<int>;
using VL = vector<long long>;
using Vc = vector<char>;
using Vs = vector<string>;
using VV = vector<vector<int>>;
using VVL = vector<vector<long long>>;
using VVV = vector<vector<vector<int>>>;
using VP = vector<P>;
using VVP = vector<vector<P>>;

template<typename T>using MaxHeap = priority_queue<T>;
template<typename T>using MinHeap = priority_queue<T, vector<T>, greater<T>>;
template<typename T>void chmin(T& a, T b) {a = min(a, b);}
template<typename T>void chmax(T& a, T b) {a = max(a, b);}

ll modpow(ll x, ll n, ll m = mod) {
	if (n < 0) {
		ll res = modpow(x, -n, m);
		return modpow(res, m - 2, m);
	}
	if (abs(x) >= m)x %= m;
	if (x < 0)x += m;
	//if (x == 0)return 0;
	ll res = 1;
	while (n) {
		if (n & 1)res = res * x % m;
		x = x * x % m; n >>= 1;
	}
	return res;
}

class modint {
public:
   int val;
	modint() :val(0) {}
    template<typename T>modint(T x=0): val(x%mod){if(val<0)val+=mod;}
    modint(const modint &r){val=r.val;}
	modint& operator=(const modint& other) {val = other.val;return *this;}
	modint& operator=(const int& other) {val = other;return *this;}
	modint& operator=(const long long& other) {val = other;return *this;}
    //算術演算子
    modint operator +(){return (*this);} //単項
    modint operator -(){return (val%mod+mod)%mod;} //単項
    modint operator +(const modint &r){return modint(*this)+=r;}
    modint operator -(const modint &r){return modint(*this)-=r;}
    modint operator *(const modint &r){return modint(*this)*=r;}
    modint operator /(const modint &r){return modint(*this)/=r;}
    modint operator %(const modint &r){return modint(*this)%=r;}
    modint operator ^(long long r){modint ans = 1, x = val;while (r > 0) {if (r & 1) ans *= x;x *= x;r >>= 1;}return ans;}
    modint operator ++(int){val+=1;val%=mod; return *this;}
    modint operator --(int){(val==0)?val=mod-1:val-=1; return *this;}
    //代入演算子
    modint &operator +=(const modint &r){val+=r.val;if(val>=mod)val-=mod;return *this;}
    modint &operator -=(const modint &r){if(val<r.val)val+=mod;val-=r.val;return *this;}
    modint &operator *=(const modint &r){val=(ll)val*r.val%mod;return *this;}
    modint &operator /=(const modint &r){ll a=r.val,b=mod,u=1,v=0;while(b){ll t=a/b;a-=t*b;swap(a,b);u-=t*v;swap(u,v);}val=val*u%mod;if(val<0)val+=mod;return *this;}
    modint &operator %=(const modint &r){val=val%r.val; return *this;}
    modint &operator ^=(const long long &r){(*this)=(*this)^r; return (*this);}
    //等価比較演算子
    bool operator ==(const modint& r){return this->val==r.val;}
    bool operator <(const modint& r){return this->val<r.val;}
    bool operator >(const modint& r){return this->val>r.val;}
    bool operator !=(const modint& r){return this->val!=r.val;}
    // 他のクラスとの計算
    template <typename T>friend modint operator+(T t, const modint& o) {return modint(t) + o;}
    template <typename T>friend modint operator-(T t, const modint& o) {return modint(t) - o;}
    template <typename T>friend modint operator*(T t, const modint& o) {return modint(t) * o;}
    template <typename T>friend modint operator/(T t, const modint& o) {return modint(t) / o;}
};
istream &operator >>(istream &is,modint& x){ long long t; is >> t; x=modint(t); return is;}
ostream &operator <<(ostream &os,const modint& x){return os<<x.val;}


const int max_n = 1 << 20;
modint fact[max_n], factinv[max_n];
void init_f() {
	fact[0] = (1);
	for (int i = 0; i < max_n - 1; i++) {
		fact[i + 1] = fact[i] * (i + 1);
	}
	factinv[max_n - 1] = (1) / fact[max_n - 1];
	for (int i = max_n - 2; i >= 0; i--) {
		factinv[i] = factinv[i + 1] *(i + 1);
	}
}

modint comb(int a, int b) {
	if (a < 0 || b < 0 || a < b)return 0;
	return fact[a] * factinv[b] * factinv[a - b];
}
modint combP(int a, int b) {
	if (a < 0 || b < 0 || a < b)return 0;
	return fact[a] * factinv[a - b];
}

ostream &operator<<(ostream &dest, __int128_t value) {ostream::sentry s(dest);
	if (s) {
		__uint128_t tmp = value < 0 ? -value : value;
		char buffer[128];
		char *d = end(buffer);
		do {
			--d;*d = "0123456789"[tmp % 10];tmp /= 10;
		} while (tmp != 0);
		if (value < 0) {--d;*d = '-';}
		int len = end(buffer) - d;
		if (dest.rdbuf()->sputn(d, len) != len)
			dest.setstate(ios_base::badbit);
	}
	return dest;
}
__int128 parse(string &s) {
	__int128 ret = 0;
	for (int i = 0; i < s.size(); i++)
	if ('0' <= s[i] && s[i] <= '9')
		ret = 10 * ret + s[i] - '0';
	return ret;
}

template<typename T>
T gcd(T a, T b) {
	a = abs(a); b = abs(b);
	if (a < b)swap(a, b);
	while(b){ll r = a % b; a = b; b = r;}
	return a;
}

template<typename T>void debug(T a){cerr << a <<  endl;}
template<typename T,typename S>void debug(T a, S b){cerr << a << " " << b << endl;}
template<typename T,typename S,typename U>void debug(T a,S b,U c){cerr <<"( "<< a << " " << b << " " << c <<" )" << endl;}
template<typename T,typename S,typename U,typename W>void debug(T a,S b,U c,W d){cerr <<"( "<< a << " " << b << " " << c<< " " << d <<" )" << endl;}
template<typename T>void debug(vector<T> v){for(int i=0;i<v.size();i++)cerr << v[i] << " ";cerr << endl;}
template<typename T>void debug(set<T> m){for(auto itr: m){cerr << itr << " ";}cerr << endl;}
template<typename T,typename S>void debug(map<T,S> m){for(auto itr=m.begin();itr!=m.end();itr++)cerr <<"("<< itr->first << " => " << itr->second<<")" << endl;}
template<typename T,typename S>void debug(pair<T,S> p){cerr <<"( "<< p.first << ", " << p.second <<" )" << endl;}
template<typename T,typename S>void debug(tuple<T,S> t){cerr <<"( "<< get<0>(t) << ", " << get<1>(t) <<" )" << endl;}
template<typename T,typename S,typename U>void debug(tuple<T,S,U> t){cerr <<"( "<< get<0>(t) << ", " << get<1>(t)<< ", " << get<2>(t) <<" )" << endl;}
template<typename T,typename S,typename U,typename W>void debug(tuple<T,S,U,W> t){cerr <<"( "<< get<0>(t) << ", " << get<1>(t)<< ", " << get<2>(t)<< ", " << get<3>(t) <<" )" << endl;}

template<typename T>void out(T a){ cout << a << endl;}
template<typename T,typename S>void out(T a,S b){ cout << a <<" " << b << endl;}
template<typename T,typename S,typename U>void out(T a,S b,U c){ cout << a <<" " << b <<" " << c << endl;}
template<typename T>void out(vector<T> v){ for(int i=0;i<v.size();i++){cout << v[i];if(i==v.size()-1) cout << endl;else cout << " ";}}
template<typename T>void out(set<T> m){for(auto itr: m){cout << itr; if((itr+1)==m.endl()) cout << endl;else cout << " ";}}
template<typename T,typename S>void out(pair<T,S> p){cout << p.first << " " << p.second << endl;}
template<typename T,typename S>void out(tuple<T,S> t){cout << get<0>(t) << " " << get<1>(t) << endl;}
template<typename T,typename S,typename U>void out(tuple<T,S,U> t){cout << get<0>(t) << " " << get<1>(t)<< " " << get<2>(t) << endl;}
void yes(bool f=1,string yes="Yes",string no="No"){if(f){cout << yes << endl;}else{cout << no << endl;}}


struct  S
{
	int x;
	int y;
	S(int x, int y) : x(x),y(y){}
	bool operator<(const struct S& other) const
	{
		return x < other.x;
	}
	void debug(){
		cerr <<"debug " << x <<"-" << y << endl;
	}
};

void solve(){
	int R,k;
	cin >> R >> k;
	VC<ld> p(k);
	rep(i,k/2){
		ld s = PI/2/(k+1)*(i+1);
		ld l = 0,r = 1;
		while (r-l>0.00000001)
		{
			ld c = (r-l)/2+l;
			// debug(c);
			ld sita=acos(c);
			ld ss = sita/2.0-c*sqrt(1.0-c*c)/2;
			if(s<ss){
				l = c;
			}else{
				r = c;
			}
		}
		p[i] = l*R;
	}

	if(k%2){
		p[k/2+1] = 0;
	}
	rep(i,k/2){
		p[(k-1)-i] = -p[i];
	}
	sort(all(p));
	rep(i,k)out(p[i]);
	return;
}

int main()
{
	cin.tie(nullptr);
    ios::sync_with_stdio(false);
    cout<<std::setprecision(20);
	int t=1;
	// cin >> t;
	while(t--)
		solve();
	return 0;
}

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結果

テストケース

ソースコード