結果
| 問題 | No.1765 While Shining |
| ユーザー |
 hamamu
|
| 提出日時 | 2021-11-26 22:46:28 |
| 言語 | C++17 (gcc 13.2.0 + boost 1.83.0) |
| 結果 |
AC
|
| 実行時間 | 20 ms / 2,000 ms |
| コード長 | 15,074 bytes |
| コンパイル時間 | 2,044 ms |
| コンパイル使用メモリ | 201,736 KB |
| 実行使用メモリ | 6,756 KB |
| 最終ジャッジ日時 | 2023-09-12 05:19:15 |
| 合計ジャッジ時間 | 3,449 ms |
|
ジャッジサーバーID （参考情報） |
judge11 / judge15 |
（要ログイン）
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
4,380 KB |
| testcase_01 | AC | 2 ms
4,376 KB |
| testcase_02 | AC | 1 ms
4,380 KB |
| testcase_03 | AC | 2 ms
4,380 KB |
| testcase_04 | AC | 2 ms
4,380 KB |
| testcase_05 | AC | 1 ms
4,380 KB |
| testcase_06 | AC | 1 ms
4,376 KB |
| testcase_07 | AC | 1 ms
4,380 KB |
| testcase_08 | AC | 2 ms
4,376 KB |
| testcase_09 | AC | 12 ms
5,088 KB |
| testcase_10 | AC | 18 ms
6,300 KB |
| testcase_11 | AC | 17 ms
6,040 KB |
| testcase_12 | AC | 18 ms
6,296 KB |
| testcase_13 | AC | 16 ms
6,032 KB |
| testcase_14 | AC | 20 ms
6,564 KB |
| testcase_15 | AC | 20 ms
6,564 KB |
| testcase_16 | AC | 19 ms
6,484 KB |
| testcase_17 | AC | 20 ms
6,560 KB |
| testcase_18 | AC | 19 ms
6,432 KB |
| testcase_19 | AC | 20 ms
6,388 KB |
| testcase_20 | AC | 19 ms
6,556 KB |
| testcase_21 | AC | 19 ms
6,756 KB |
| testcase_22 | AC | 19 ms
6,376 KB |
| testcase_23 | AC | 19 ms
6,452 KB |
| testcase_24 | AC | 16 ms
5,272 KB |
ソースコード
# include "bits/stdc++.h"
#if 1
#define MODLL (1000000007LL)
#else
#define MODLL (998244353LL)
#endif
using namespace std;
using ll=long long; using dd=double;
using vll=vector< ll>; using vdd=vector< dd>;
using vvll=vector< vll>; using vvdd=vector<vdd>;
using vvvll=vector< vvll>; using vvvdd=vector<vvdd>;
using vvvvll=vector<vvvll>;
using pll=pair<ll,ll>; using tll=tuple<ll,ll,ll>; using qll=tuple<ll,ll,ll,ll>;
using vpll=vector< pll>; using vtll=vector< tll>; using vqll=vector< qll>;
using vvpll=vector<vpll>; using vvtll=vector<vtll>; using vvqll=vector<vqll>;
constexpr ll INF = 1LL << 60;
struct Fast{ Fast(){ cin.tie(0); ios::sync_with_stdio(false); cout<<fixed<<setprecision(numeric_limits<double>::max_digits10); } } fast;
#define REPS(i, S, E) for (ll i = (S); i <= (E); i++)
#define REP(i, N) REPS(i, 0, (N)-1)
#define DEPS(i, S, E) for (ll i = (E); i >= (S); i--)
#define DEP(i, N) DEPS(i, 0, (N)-1)
#define EXPAND( x ) x//VS用おまじない
#define overload3(_1,_2,_3,name,...) name
#define overload4(_1,_2,_3,_4,name,...) name
#define overload5(_1,_2,_3,_4,_5,name,...) name
#define rep3(i, S, E) for (ll i = (S); i <= (E); i++)
#define rep4(i, S, E, t) for (ll i = (S); i <= (E); i+=(t))
#define rep(...) EXPAND(overload4(__VA_ARGS__,rep4,rep3,_,_)(__VA_ARGS__))
#define dep3(i, E, S) for (ll i = (E); i >= (S); i--)
#define dep4(i, E, S, t) for (ll i = (E); i >= (S); i-=(t))
#define dep(...) EXPAND(overload4(__VA_ARGS__, dep4, dep3,_,_)(__VA_ARGS__))
#define each2(e,v) for (auto && e:v)
#define each3(a,b,v) for (auto &&[a,b]:v)
#define each4(a,b,c,v) for (auto &&[a,b,c]:v)
#define each5(a,b,c,d,v) for (auto &&[a,b,c,d]:v)
#define each(...) EXPAND(overload5(__VA_ARGS__,each5,each4,each3,each2,_)(__VA_ARGS__))
#define ALL1(v) (v).begin(), (v).end()
#define ALL2(v,E) (v).begin(), (v).begin()+((E)+1)
#define ALL3(v,S,E) (v).begin()+(S), (v).begin()+((E)+1)
#define ALL(...) EXPAND(overload3(__VA_ARGS__, ALL3, ALL2, ALL1)(__VA_ARGS__))
#define all ALL
#define RALL1(v) (v).rbegin(), (v).rend()
#define RALL2(v,E) (v).rbegin(), (v).rbegin()+((E)+1)
#define RALL3(v,S,E) (v).rbegin()+(S), (v).rbegin()+((E)+1)
#define RALL(...) EXPAND(overload3(__VA_ARGS__, RALL3, RALL2, RALL1)(__VA_ARGS__))
#define rall RALL
template<class T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return true; }return false; }
template<class T> inline bool chmin(T &a, T b) { if (a > b) { a = b; return true; }return false; }
template<class T> inline T MaxE(vector<T>&v,ll S,ll E){ T m=v[S]; rep(i,S,E)chmax(m,v[i]); return m; }
template<class T> inline T MinE(vector<T>&v,ll S,ll E){ T m=v[S]; rep(i,S,E)chmin(m,v[i]); return m; }
template<class T> inline T MaxE(vector<T> &v) { return MaxE(v,0,(ll)v.size()-1); }
template<class T> inline T MinE(vector<T> &v) { return MinE(v,0,(ll)v.size()-1); }
template<class T> inline auto maxe(T &&v,ll S,ll E){ return *max_element(ALL(v,S,E)); }
template<class T> inline auto maxe(T &&v){ return *max_element(ALL(v)); }
template<class T> inline auto mine(T &&v,ll S,ll E){ return *min_element(ALL(v,S,E)); }
template<class T> inline auto mine(T &&v){ return *min_element(ALL(v)); }
template<class T> inline T Sum(vector<T> &v,ll S,ll E){ T s=T(); rep(i,S,E)s+=v[i]; return s; }
template<class T> inline T Sum(vector<T> &v) { return Sum(v,0,v.size()-1); }
template<class T,class U=typename remove_reference<T>::type::value_type>
inline U sum(T &&v,ll S,ll E) {return accumulate(all(v,S,E),U());}
template<class T> inline auto sum(T &&v) {return sum(v,0,v.end()-v.begin()-1);}
template<class T> inline ll sz(T &&v){ return (ll)v.size(); }
inline ll CEIL(ll a,ll b){ return (a<0) ? -(-a/b) : (a+b-1)/b; } //負もOK
inline ll FLOOR(ll a,ll b){ return -CEIL(-a,b); } //負もOK
//pair用テンプレート
template<class T,class S> inline pair<T,S>& operator+=(pair<T,S> &a,const pair<T,S> &b){ a.first+=b.first; a.second+=b.second; return a; }
template<class T,class S> inline pair<T,S>& operator-=(pair<T,S> &a,const pair<T,S> &b){ a.first-=b.first; a.second-=b.second; return a; }
template<class T,class S> inline pair<T,S>& operator*=(pair<T,S> &a,const pair<T,S> &b){ a.first*=b.first; a.second*=b.second; return a; }
template<class T,class S> inline pair<T,S>& operator/=(pair<T,S> &a,const pair<T,S> &b){ a.first/=b.first; a.second/=b.second; return a; }
template<class T,class S> inline pair<T,S>& operator%=(pair<T,S> &a,const pair<T,S> &b){ a.first%=b.first; a.second%=b.second; return a; }
template<class T,class S,class R> inline pair<T,S>& operator+=(pair<T,S> &a,R b){ a.first+=b; a.second+=b; return a; }
template<class T,class S,class R> inline pair<T,S>& operator-=(pair<T,S> &a,R b){ a.first-=b; a.second-=b; return a; }
template<class T,class S,class R> inline pair<T,S>& operator*=(pair<T,S> &a,R b){ a.first*=b; a.second*=b; return a; }
template<class T,class S,class R> inline pair<T,S>& operator/=(pair<T,S> &a,R b){ a.first/=b; a.second/=b; return a; }
template<class T,class S,class R> inline pair<T,S>& operator%=(pair<T,S> &a,R b){ a.first%=b; a.second%=b; return a; }
template<class T,class S,class R> inline pair<T,S> operator+(const pair<T,S> &a,R b){ pair<T,S> c=a; return c+=b; }
template<class T,class S,class R> inline pair<T,S> operator-(const pair<T,S> &a,R b){ pair<T,S> c=a; return c-=b; }
template<class T,class S,class R> inline pair<T,S> operator*(const pair<T,S> &a,R b){ pair<T,S> c=a; return c*=b; }
template<class T,class S,class R> inline pair<T,S> operator/(const pair<T,S> &a,R b){ pair<T,S> c=a; return c/=b; }
template<class T,class S,class R> inline pair<T,S> operator%(const pair<T,S> &a,R b){ pair<T,S> c=a; return c%=b; }
template<class T,class S,class R> inline pair<T,S> operator-(R b,const pair<T,S> &a){ pair<T,S> c=-a; return c+=b; }
template<class T,class S> inline pair<T,S> operator-(const pair<T,S> &a,const pair<T,S> &b){ pair<T,S> c=a; return c-=b; }
template<class T,class S> inline pair<T,S> operator-(const pair<T,S> &a){ pair<T,S> c=a; return c*=(-1); }
template<class T,class S> inline ostream &operator<<(ostream &os,const pair<T,S> &a){ return os << a.first << ' ' << a.second; }
//vector用テンプレート
template<class T> inline vector<T>& operator+=(vector<T> &a,const vector<T> &b){ for (ll i=0; i<(ll)a.size(); i++) a[i]+=b[i]; return a; }
template<class T> inline vector<T>& operator-=(vector<T> &a,const vector<T> &b){ for (ll i=0; i<(ll)a.size(); i++) a[i]-=b[i]; return a; }
template<class T> inline vector<T>& operator*=(vector<T> &a,const vector<T> &b){ for (ll i=0; i<(ll)a.size(); i++) a[i]*=b[i]; return a; }
template<class T> inline vector<T>& operator/=(vector<T> &a,const vector<T> &b){ for (ll i=0; i<(ll)a.size(); i++) a[i]/=b[i]; return a; }
template<class T> inline vector<T>& operator%=(vector<T> &a,const vector<T> &b){ for (ll i=0; i<(ll)a.size(); i++) a[i]%=b[i]; return a; }
template<class T,class S> inline vector<T>& operator+=(vector<T> &a,S b){ for (T &e: a) e+=b; return a; }
template<class T,class S> inline vector<T>& operator-=(vector<T> &a,S b){ for (T &e: a) e-=b; return a; }
template<class T,class S> inline vector<T>& operator*=(vector<T> &a,S b){ for (T &e: a) e*=b; return a; }
template<class T,class S> inline vector<T>& operator/=(vector<T> &a,S b){ for (T &e: a) e/=b; return a; }
template<class T,class S> inline vector<T>& operator%=(vector<T> &a,S b){ for (T &e: a) e%=b; return a; }
template<class T,class S> inline vector<T> operator+(const vector<T> &a,S b){ vector<T> c=a; return c+=b; }
template<class T,class S> inline vector<T> operator-(const vector<T> &a,S b){ vector<T> c=a; return c-=b; }
template<class T,class S> inline vector<T> operator*(const vector<T> &a,S b){ vector<T> c=a; return c*=b; }
template<class T,class S> inline vector<T> operator/(const vector<T> &a,S b){ vector<T> c=a; return c/=b; }
template<class T,class S> inline vector<T> operator%(const vector<T> &a,S b){ vector<T> c=a; return c%=b; }
template<class T,class S> inline vector<T> operator-(S b,const vector<T> &a){ vector<T> c=-a; return c+=b; }
template<class T> inline vector<T> operator-(const vector<T> &a,const vector<T> &b){ vector<T> c=a; return c-=b; }
template<class T> inline vector<T> operator-(const vector<T> &a){ vector<T> c=a; return c*=(-1); }
template<class T> inline ostream &operator<<(ostream &os,const vector<T> &a){ for (ll i=0; i<(ll)a.size(); i++) os<<(i>0?" ":"")<<a[i]; return os; }
//array用テンプレート
template<class T,size_t S> inline array<T,S>& operator+=(array<T,S> &a,const array<T,S> &b){ for (ll i=0; i<(ll)S; i++) a[i]+=b[i]; return a; }
template<class T,size_t S> inline array<T,S>& operator-=(array<T,S> &a,const array<T,S> &b){ for (ll i=0; i<(ll)S; i++) a[i]-=b[i]; return a; }
template<class T,size_t S> inline array<T,S>& operator*=(array<T,S> &a,const array<T,S> &b){ for (ll i=0; i<(ll)S; i++) a[i]*=b[i]; return a; }
template<class T,size_t S> inline array<T,S>& operator/=(array<T,S> &a,const array<T,S> &b){ for (ll i=0; i<(ll)S; i++) a[i]/=b[i]; return a; }
template<class T,size_t S> inline array<T,S>& operator%=(array<T,S> &a,const array<T,S> &b){ for (ll i=0; i<(ll)S; i++) a[i]%=b[i]; return a; }
template<class T,size_t S,class R> inline array<T,S>& operator+=(array<T,S> &a,R b){ for (T &e: a) e+=b; return a; }
template<class T,size_t S,class R> inline array<T,S>& operator-=(array<T,S> &a,R b){ for (T &e: a) e-=b; return a; }
template<class T,size_t S,class R> inline array<T,S>& operator*=(array<T,S> &a,R b){ for (T &e: a) e*=b; return a; }
template<class T,size_t S,class R> inline array<T,S>& operator/=(array<T,S> &a,R b){ for (T &e: a) e/=b; return a; }
template<class T,size_t S,class R> inline array<T,S>& operator%=(array<T,S> &a,R b){ for (T &e: a) e%=b; return a; }
template<class T,size_t S,class R> inline array<T,S> operator+(const array<T,S> &a,R b){ array<T,S> c=a; return c+=b; }
template<class T,size_t S,class R> inline array<T,S> operator-(const array<T,S> &a,R b){ array<T,S> c=a; return c-=b; }
template<class T,size_t S,class R> inline array<T,S> operator*(const array<T,S> &a,R b){ array<T,S> c=a; return c*=b; }
template<class T,size_t S,class R> inline array<T,S> operator/(const array<T,S> &a,R b){ array<T,S> c=a; return c/=b; }
template<class T,size_t S,class R> inline array<T,S> operator%(const array<T,S> &a,R b){ array<T,S> c=a; return c%=b; }
template<class T,size_t S,class R> inline array<T,S> operator-(R b,const array<T,S> &a){ array<T,S> c=-a; return c+=b; }
template<class T,size_t S> inline array<T,S> operator-(const array<T,S> &a,const array<T,S> &b){ array<T,S> c=a; return c-=b; }
template<class T,size_t S> inline array<T,S> operator-(const array<T,S> &a){ array<T,S> c=a; return c*=(-1); }
template<class T,size_t S> inline ostream &operator<<(ostream &os,const array<T,S> &a){ for (ll i=0; i<(ll)S; i++) os<<(i>0?" ":"")<<a[i]; return os; }
template<ll MOD> struct mll_{
ll val;
mll_(ll v = 0): val(v % MOD){ if (val < 0) val += MOD; }
mll_ operator - () const { return -val; }
mll_ operator + (const mll_ &b) const { return val + b.val; }
mll_ operator - (const mll_ &b) const { return val - b.val; }
mll_ operator * (const mll_ &b) const { return val * b.val; }
mll_ operator / (const mll_ &b) const { return mll_(*this) /= b; }
mll_ operator + (ll b) const { return *this + mll_(b); }
mll_ operator - (ll b) const { return *this - mll_(b); }
mll_ operator * (ll b) const { return *this * mll_(b); }
friend mll_ operator + (ll a,const mll_ &b) { return b + a; }
friend mll_ operator - (ll a,const mll_ &b) { return -b + a; }
friend mll_ operator * (ll a,const mll_ &b) { return b * a; }
friend mll_ operator / (ll a,const mll_ &b) { return mll_(a)/b; }
mll_ &operator += (const mll_ &b) { val=(val+b.val)%MOD; return *this; }
mll_ &operator -= (const mll_ &b) { val=(val+MOD-b.val)%MOD; return *this; }
mll_ &operator *= (const mll_ &b) { val=(val*b.val)%MOD; return *this; }
mll_ &operator /= (const mll_ &b) {
ll c=b.val,d=MOD,u=1,v=0;
while (d){
ll t = c / d;
c -= t * d; swap(c,d);
u -= t * v; swap(u,v);
}
val = val * u % MOD;
if (val < 0) val += MOD;
return *this;
}
mll_ &operator += (ll b) { return *this += mll_(b); }
mll_ &operator -= (ll b) { return *this -= mll_(b); }
mll_ &operator *= (ll b) { return *this *= mll_(b); }
mll_ &operator /= (ll b) { return *this /= mll_(b); }
bool operator == (const mll_ &b) const { return val == b.val; }
bool operator != (const mll_ &b) const { return val != b.val; }
bool operator == (ll b) const { return *this == mll_(b); }
bool operator != (ll b) const { return *this != mll_(b); }
friend bool operator == (ll a,const mll_ &b) { return mll_(a) == b.val; }
friend bool operator != (ll a,const mll_ &b) { return mll_(a) != b.val; }
friend ostream &operator << (ostream &os,const mll_ &a) { return os << a.val; }
friend istream &operator >> (istream &is,mll_ &a) { return is >> a.val; }
static mll_ Combination(ll a,ll b){
chmin(b,a-b);
if (b<0) return mll_(0);
mll_ c = 1;
rep(i,0,b-1) c *= a-i;
rep(i,0,b-1) c /= i+1;
return c;
}
enum{modll=MOD};
};
#if 1
using mll = mll_<MODLL>;
using vmll = std::vector<mll>;
using vvmll = std::vector<vmll>;
using vvvmll = std::vector<vvmll>;
using vvvvmll = std::vector<vvvmll>;
#endif
//////////////////////////////////////////
auto solve(
ll n,vll &a
){
a.pop_back();
n--;
vll b;
{
ll cnt=0;
rep(i,0,n-1){
if (cnt>0 or a[i]==1){
cnt++;
}
if (i==n-1 or a[i]==a[i+1]){
b.push_back(cnt);
cnt=0;
}
else{
//if (!(a[i]==0 and cnt==0)){
// cnt++;
//}
}
}
}
ll ans=0;
for (auto&& e: b){
while (e>0){
ans+=e;
e-=2;
}
}
return ans;
}
void solvecomp(
ll n,vll &a
){
auto coutans=[](auto ans){
/*
出力を書く
*/
cout << ans << '\n';
};
auto ans=solve(
n,a
);
coutans(ans);
#if 0
cout << "- - - - -\n";
auto an2=solv2(
n,a
);
coutans(an2);
cout << "================\n";
if (ans!=an2){
cout << "============ input =============\n";
/*
inputファイルの形式で吐き出す
*/
cout << "============ input end =========\n\n================\n";
getchar(); rep(i,0,10000000000) i++;//getchar()の代わり
}
#endif
}
void cin2solve(){
/*
cinからの入力を書く
*/
ll n;
cin >> n;
vector<ll> a;
rep(i,0,n-1){ ll a__; cin>>a__; a.push_back(a__); }
solvecomp(
n,a
);
}
//////////////////////////////////////////
int main(){
using namespace chrono;
auto st=system_clock::now();
#if 1
cin2solve();
//generand();
#else
ll t; cin >> t;
rep(i,0,t-1){
cin2solve();
//generand();
}
#endif
ll ms=duration_cast<microseconds>(system_clock::now()-st).count()/1000;
cerr << ms <<"ms"<< '\n';
return 0;
}