結果
問題 | No.1904 Never giving up! |
ユーザー | t98slider |
提出日時 | 2022-04-15 21:28:58 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 3 ms / 2,000 ms |
コード長 | 6,158 bytes |
コンパイル時間 | 2,247 ms |
コンパイル使用メモリ | 169,668 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-06-07 02:40:43 |
合計ジャッジ時間 | 2,384 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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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
6,816 KB |
testcase_01 | AC | 2 ms
6,944 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,944 KB |
testcase_05 | AC | 2 ms
6,940 KB |
testcase_06 | AC | 2 ms
6,944 KB |
testcase_07 | AC | 2 ms
6,944 KB |
testcase_08 | AC | 2 ms
6,944 KB |
testcase_09 | AC | 2 ms
6,944 KB |
testcase_10 | AC | 2 ms
6,940 KB |
testcase_11 | AC | 3 ms
6,940 KB |
ソースコード
#include <bits/stdc++.h> #define all(v) v.begin(), v.end() #define rall(v) v.rbegin(), v.rend() #define rep(i,n) for(int i=0;i<(int)(n);i++) #define drep(i,j,n) for(int i=0;i<(int)(n-1);i++)for(int j=i+1;j<(int)(n);j++) #define trep(i,j,k,n) for(int i=0;i<(int)(n-2);i++)for(int j=i+1;j<(int)(n-1);j++)for(int k=j+1;k<(int)(n);k++) #define codefor int test;scanf("%d",&test);while(test--) #define INT(...) int __VA_ARGS__;in(__VA_ARGS__) #define LL(...) ll __VA_ARGS__;in(__VA_ARGS__) #define yes(ans) if(ans)printf("yes\n");else printf("no\n") #define Yes(ans) if(ans)printf("Yes\n");else printf("No\n") #define YES(ans) if(ans)printf("YES\n");else printf("NO\n") #define popcount(v) __builtin_popcountll(v) #define vector2d(type,name,h,...) vector<vector<type>>name(h,vector<type>(__VA_ARGS__)) #define vector3d(type,name,h,w,...) vector<vector<vector<type>>>name(h,vector<vector<type>>(w,vector<type>(__VA_ARGS__))) #define vector4d(type,name,h,w,d,...) vector<vector<vector<vector<type>>>>name(h,vector<vector<vector<type>>>(w,vector<vector<type>>(d,vector<type>(__VA_ARGS__)))) using namespace std; using ll = long long; template<class T> using rpriority_queue = priority_queue<T, vector<T>, greater<T>>; const int MOD=1000000007; const int MOD2=998244353; const int INF=1<<30; const ll INF2=1LL<<60; void scan(int& a){scanf("%d",&a);} void scan(long long& a){scanf("%lld",&a);} template<class T,class L>void scan(pair<T, L>& p){scan(p.first);scan(p.second);} template<class T,class U,class V>void scan(tuple<T,U,V>& p){scan(get<0>(p));scan(get<1>(p));scan(get<2>(p));} template<class T, size_t size> void scan(array<T, size>& a){ for(auto&& i : a) scan(i);} template<class T> void scan(T& a){cin>>a;} template<class T> void scan(vector<T>& vec){for(auto&& it:vec)scan(it);} void in(){} template <class Head, class... Tail> void in(Head& head, Tail&... tail){scan(head);in(tail...);} void print(const int& a){printf("%d",a);} void print(const long long& a){printf("%lld",a);} void print(const double& a){printf("%.15lf",a);} template<class T,class L>void print(const pair<T, L>& p){print(p.first);putchar(' ');print(p.second);} template<class T> void print(const T& a){cout<<a;} template<class T> void print(const vector<T>& vec){if(vec.empty())return;print(vec[0]);for(auto it=vec.begin();++it!= vec.end();){putchar(' ');print(*it);}} void out(){putchar('\n');} template<class T> void out(const T& t){print(t);putchar('\n');} template <class Head, class... Tail> void out(const Head& head,const Tail&... tail){print(head);putchar(' ');out(tail...);} template<class T> void dprint(const T& a){cerr<<a;} template<class T> void dprint(const vector<T>& vec){if(vec.empty())return;cerr<<vec[0];for(auto it=vec.begin();++it!= vec.end();){cerr<<" "<<*it;}} void debug(){cerr<<'\n';} template<class T> void debug(const T& t){dprint(t);cerr<<endl;} template <class Head, class... Tail> void debug(const Head& head, const Tail&... tail){dprint(head);cerr<<" ";debug(tail...);} ll intpow(ll a, ll b){ ll ans = 1; while(b){ if(b & 1) ans *= a; a *= a; b /= 2; } return ans; } ll modpow(ll a, ll b, ll p){ ll ans = 1; while(b){ if(b & 1) (ans *= a) %= p; (a *= a) %= p; b /= 2; } return ans; } ll modinv(ll a, ll m) {ll b = m, u = 1, v = 0;while (b) {ll t = a / b;a -= t * b; swap(a, b);u -= t * v; swap(u, v);}u %= m;if (u < 0) u += m;return u;} ll updivide(ll a,ll b){return (a+b-1)/b;} template<class T> void chmax(T &a,const T b){if(b>a)a=b;} template<class T> void chmin(T &a,const T b){if(b<a)a=b;} struct yuri { ll num,den; yuri() : num(0),den(1) {} yuri(ll a) : num(a),den(1){} yuri(ll a,ll b) : num(a),den(b){safe();} void safe(){ if(den<0)den*=-1,num*=-1; ll v=__gcd(abs(num),den); num/=v,den/=v; } yuri& operator++() {num+=den;return *this;} yuri& operator--() {num-=den;return *this;} yuri& operator+=(const yuri& rhs) { num=num*rhs.den+den*rhs.num; den=den*rhs.den; safe(); return *this; } yuri& operator-=(const yuri& rhs) { num=num*rhs.den-den*rhs.num; den=den*rhs.den; safe(); return *this; } yuri& operator*=(const yuri& rhs) { num=num*rhs.num; den=den*rhs.den; safe(); return *this; } yuri& operator/=(const yuri& rhs) { num=num*rhs.den; den=den*rhs.num; safe(); return *this ; } yuri operator+() const { return *this; } yuri operator-() const { return yuri() - *this; } friend yuri operator+(const yuri& lhs, const yuri& rhs) { return yuri(lhs) += rhs; } friend yuri operator-(const yuri& lhs, const yuri& rhs) { return yuri(lhs) -= rhs; } friend yuri operator*(const yuri& lhs, const yuri& rhs) { return yuri(lhs) *= rhs; } friend yuri operator/(const yuri& lhs, const yuri& rhs) { return yuri(lhs) /= rhs; } friend bool operator==(const yuri& lhs, const yuri& rhs) { return (lhs.num==rhs.num&&lhs.den==rhs.den); } friend bool operator!=(const yuri& lhs, const yuri& rhs) { return (lhs.num!=rhs.num||lhs.den!=rhs.den); } friend bool operator<(const yuri& lhs, const yuri& rhs) { return (lhs.num*rhs.den<lhs.den*rhs.num); } friend bool operator<=(const yuri& lhs, const yuri& rhs) { return (lhs.num*rhs.den<=lhs.den*rhs.num); } friend bool operator>(const yuri& lhs, const yuri& rhs) { return (lhs.num*rhs.den>lhs.den*rhs.num); } friend bool operator>=(const yuri& lhs, const yuri& rhs) { return (lhs.num*rhs.den>=lhs.den*rhs.num); } friend ostream& operator << (ostream &os, const yuri& rhs) noexcept { if(rhs.den==1)return os << rhs.num; return os << rhs.num << '/' << rhs.den; } }; int main(){ INT(n); vector<int> t(n); int x; for(int i=0;i<n;i++){ in(x); x--; t[x]++; } yuri ans=yuri(1,1); ll rem=n; for(int i=0;i<n;i++){ while(t[i]>=1){ //debug(ans,rem,t[i]); ans*=yuri(rem,t[i]); rem--,t[i]--; } } out(ans.num); }