結果
問題 | No.1265 Balloon Survival |
ユーザー | hotman78 |
提出日時 | 2020-10-23 23:58:31 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 9,422 bytes |
コンパイル時間 | 3,968 ms |
コンパイル使用メモリ | 245,220 KB |
実行使用メモリ | 23,752 KB |
最終ジャッジ日時 | 2024-07-21 13:58:15 |
合計ジャッジ時間 | 6,137 ms |
ジャッジサーバーID (参考情報) |
judge2 / 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
5,248 KB |
testcase_01 | AC | 2 ms
5,248 KB |
testcase_02 | AC | 2 ms
5,248 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 2 ms
5,376 KB |
testcase_12 | AC | 2 ms
5,376 KB |
testcase_13 | AC | 2 ms
5,376 KB |
testcase_14 | AC | 12 ms
5,944 KB |
testcase_15 | AC | 10 ms
5,688 KB |
testcase_16 | AC | 5 ms
5,376 KB |
testcase_17 | AC | 50 ms
19,772 KB |
testcase_18 | AC | 6 ms
5,376 KB |
testcase_19 | AC | 4 ms
5,376 KB |
testcase_20 | AC | 12 ms
5,788 KB |
testcase_21 | AC | 24 ms
8,444 KB |
testcase_22 | AC | 16 ms
7,788 KB |
testcase_23 | AC | 17 ms
7,908 KB |
testcase_24 | AC | 89 ms
23,492 KB |
testcase_25 | AC | 89 ms
23,752 KB |
testcase_26 | AC | 90 ms
23,492 KB |
testcase_27 | AC | 88 ms
23,620 KB |
testcase_28 | AC | 90 ms
23,496 KB |
testcase_29 | AC | 87 ms
23,624 KB |
testcase_30 | AC | 89 ms
23,620 KB |
testcase_31 | AC | 89 ms
23,620 KB |
testcase_32 | AC | 89 ms
23,492 KB |
testcase_33 | AC | 87 ms
23,616 KB |
testcase_34 | AC | 2 ms
5,376 KB |
testcase_35 | WA | - |
ソースコード
#line 2 "cpplib/util/template.hpp" #pragma GCC optimize("Ofast") #pragma GCC optimize("unroll-loops") #pragma GCC target("avx") #include<bits/stdc++.h> using namespace std; struct __INIT__{__INIT__(){cin.tie(0);ios::sync_with_stdio(false);cout<<fixed<<setprecision(15);}}__INIT__; typedef long long lint; #define INF (1LL<<60) #define IINF (1<<30) #define EPS (1e-10) #define endl ('\n') typedef vector<lint> vec; typedef vector<vector<lint>> mat; typedef vector<vector<vector<lint>>> mat3; typedef vector<string> svec; typedef vector<vector<string>> smat; template<typename T>inline void output(T t){bool f=0;for(auto i:t){cout<<(f?" ":"")<<i;f=1;}cout<<endl;} template<typename T>inline void output2(T t){for(auto i:t)output(i);} template<typename T>inline void debug(T t){bool f=0;for(auto i:t){cerr<<(f?" ":"")<<i;f=1;}cerr<<endl;} template<typename T>inline void debug2(T t){for(auto i:t)output(i);} #define loop(n) for(long long _=0;_<(long long)(n);++_) #define rep(i,...) for(auto i:range(__VA_ARGS__)) #define rrep(i,...) for(auto i:reversed(range(__VA_ARGS__))) #define repi(i,a,b) for(lint i=lint(a);i<(lint)(b);++i) #define rrepi(i,a,b) for(lint i=lint(b)-1;i>=lint(a);--i) #define irep(i) for(lint i=0;;++i) inline vector<long long> range(long long n){if(n<=0)return vector<long long>();vector<long long>v(n);iota(v.begin(),v.end(),0LL);return v;} inline vector<long long> range(long long a,long long b){if(b<=a)return vector<long long>();vector<long long>v(b-a);iota(v.begin(),v.end(),a);return v;} inline vector<long long> range(long long a,long long b,long long c){if((b-a+c-1)/c<=0)return vector<long long>();vector<long long>v((b-a+c-1)/c);for(int i=0;i<(int)v.size();++i)v[i]=i?v[i-1]+c:a;return v;} template<typename T>inline T reversed(T v){reverse(v.begin(),v.end());return v;} #define all(n) begin(n),end(n) template<typename T,typename E>bool chmin(T& s,const E& t){bool res=s>t;s=min<T>(s,t);return res;} template<typename T,typename E>bool chmax(T& s,const E& t){bool res=s<t;s=max<T>(s,t);return res;} const vector<lint> dx={1,0,-1,0,1,1,-1,-1}; const vector<lint> dy={0,1,0,-1,1,-1,1,-1}; #define SUM(v) accumulate(all(v),0LL) template<typename T,typename ...Args>auto make_vector(T x,int arg,Args ...args){if constexpr(sizeof...(args)==0)return vector<T>(arg,x);else return vector(arg,make_vector<T>(x,args...));} #define extrep(v,...) for(auto v:__MAKE_MAT__({__VA_ARGS__})) vector<vector<long long>> __MAKE_MAT__(vector<long long> v){if(v.empty())return vector<vector<long long>>(1,vector<long long>());long long n=v.back();v.pop_back();vector<vector<long long>> ret;vector<vector<long long>> tmp=__MAKE_MAT__(v);for(auto e:tmp)for(long long i=0;i<n;++i){ret.push_back(e);ret.back().push_back(i);}return ret;} //#include "../graph_tree/graph_template.hpp" #line 1 "cpplib/dsu/union_find.hpp" /** * @brief Union Find * @see https://ja.wikipedia.org/wiki/%E7%B4%A0%E9%9B%86%E5%90%88%E3%83%87%E3%83%BC%E3%82%BF%E6%A7%8B%E9%80%A0 */ class UF{ public: vector<int> data; int sz; public: UF(int sz):sz(sz){data.resize(sz,-1);} bool unite(int x,int y){ x=root(x);y=root(y); if(x==y)return 0; if(data[x]>data[y])swap(x,y); data[x]+=data[y]; data[y]=x; sz--; return 1; } inline int root(int x){return data[x]<0?x:data[x]=root(data[x]);} inline bool same(int x, int y){return root(x)==root(y);} inline int size(){return sz;} inline int size(int x){return -data[root(x)];} }; #line 5 "cpplib/math/mod_int.hpp" /** * @brief ModInt */ template<int MOD> struct mod_int { using mint=mod_int<MOD>; using u64 = std::uint_fast64_t; u64 a; constexpr mod_int(const long long x = 0)noexcept:a(x>=0?x%get_mod():get_mod()-(-x)%get_mod()){} constexpr u64 &value()noexcept{return a;} constexpr const u64 &value() const noexcept {return a;} constexpr mint operator+(const mint rhs)const noexcept{return mint(*this) += rhs;} constexpr mint operator-(const mint rhs)const noexcept{return mint(*this)-=rhs;} constexpr mint operator*(const mint rhs) const noexcept {return mint(*this) *= rhs;} constexpr mint operator/(const mint rhs) const noexcept {return mint(*this) /= rhs;} constexpr mint &operator+=(const mint rhs) noexcept { a += rhs.a; if (a >= get_mod())a -= get_mod(); return *this; } constexpr mint &operator-=(const mint rhs) noexcept { if (a<rhs.a)a += get_mod(); a -= rhs.a; return *this; } constexpr mint &operator*=(const mint rhs) noexcept { a = a * rhs.a % get_mod(); return *this; } constexpr mint operator++(int) noexcept { a += 1; if (a >= get_mod())a -= get_mod(); return *this; } constexpr mint operator--(int) noexcept { if (a<1)a += get_mod(); a -= 1; return *this; } constexpr mint &operator/=(mint rhs) noexcept { u64 exp=get_mod()-2; while (exp) { if (exp % 2) { *this *= rhs; } rhs *= rhs; exp /= 2; } return *this; } constexpr bool operator==(mint x) noexcept { return a==x.a; } constexpr bool operator!=(mint x) noexcept { return a!=x.a; } constexpr bool operator<(mint x) noexcept { return a<x.a; } constexpr bool operator>(mint x) noexcept { return a>x.a; } constexpr bool operator<=(mint x) noexcept { return a<=x.a; } constexpr bool operator>=(mint x) noexcept { return a>=x.a; } constexpr static int root(){ mint root = 2; while(root.pow((get_mod()-1)>>1).a==1)root++; return root.a; } constexpr mint pow(long long n)const{ long long x=a; mint ret = 1; while(n>0) { if(n&1)(ret*=x); (x*=x)%=get_mod(); n>>=1; } return ret; } constexpr mint inv(){ return pow(get_mod()-2); } static std::vector<mint> fac; static std::vector<mint> ifac; static bool init; constexpr static int mx=10000001; void build()const{ init=0; fac.resize(mx); ifac.resize(mx); fac[0]=1,ifac[0]=1; for(int i=1;i<mx;i++)fac[i]=fac[i-1]*i; ifac[mx-1]=fac[mx-1].inv(); for(int i=mx-2;i>=0;i--)ifac[i]=ifac[i+1]*(i+1); } mint comb(long long b){ if(init)build(); if(a==0&&b==0)return 1; if((long long)a<b)return 0; return fac[a]*ifac[a-b]*ifac[b]; } mint fact()const{ if(init)build(); return fac[a]; } mint fact_inv()const{ if(init)build(); return ifac[a]; } friend std::ostream& operator<<(std::ostream& lhs, const mint& rhs) noexcept { lhs << rhs.a; return lhs; } friend std::istream& operator>>(std::istream& lhs,mint& rhs) noexcept { lhs >> rhs.a; return lhs; } constexpr static u64 get_mod(){ return MOD; } }; template<int MOD>std::vector<mod_int<MOD>> mod_int<MOD>::fac; template<int MOD>std::vector<mod_int<MOD>> mod_int<MOD>::ifac; template<int MOD>bool mod_int<MOD>::init=1; #line 3 "cpplib/math/mod_int1000000007.hpp" using mint=mod_int<1'000'000'007>; /** * @brief ModInt(1'000'000'007) */ #line 3 "cpplib/string/trie.hpp" /** * @brief Trie木 */ struct trie{ struct node; using np=node*; struct node{ int sz=0,sz2=0; np ch[10]; node(){ for(int i=0;i<10;i++)ch[i]=nullptr; } }; np root=new node(); void add(const std::string& s){ np t=root; t->sz++; for(int i=0;i<(int)s.size();++i){ if(!t->ch[s[i]-'0'])t->ch[s[i]-'0']=new node(); t=t->ch[s[i]-'0']; t->sz++; } t->sz2=1; } string count(const std::string& s){ np t=root; int last=0; for(int i=0;i<(int)s.size();++i){ if(!t->ch[s[i]-'0'])t->ch[s[i]-'0']=new node(); t=t->ch[s[i]-'0']; if(t->sz2)last=i; } return s.substr(0,last+1); } int count2(const std::string& s){ np t=root; for(int i=0;i<(int)s.size();++i){ if(!t->ch[s[i]-'0'])t->ch[s[i]-'0']=new node(); t=t->ch[s[i]-'0']; if(!t->sz)return 0; } return t->sz2; } // int count_suffix(const std::string& s){ // np t=root; // int res=0; // for(int i=0;i<(int)s.size();++i){ // if(!t->ch[s[i]-'0'])t->ch[s[i]-'0']=new node(); // t=t->ch[s[i]-'0']; // res+=t->sz2; // } // return res; // } }; #line 5 "code.cpp" int main(){ lint n; cin>>n; vec a(n); vec x(n),y(n); auto dist=[&](lint i,lint j){ return sqrtl((x[i]-x[j])*(x[i]-x[j])+(y[i]-y[j])*(y[i]-y[j])); }; rep(i,n){ cin>>x[i]>>y[i]; } vector<vector<double>> v(n,vector<double>(n,0)); vector<lint>used(n); vector<tuple<double,lint,lint>>dp; rep(i,n)rep(j,i+1,n){ dp.emplace_back(dist(i,j),i,j); } sort(all(dp)); lint ans=0; for(auto [d,s,t]:dp){ if(used[s]||used[t])continue; if(s==0){ ans++; used[t]=1; }else{ used[s]=used[t]=1; } } cout<<ans<<endl; }