結果
問題 | No.818 Dinner time |
ユーザー | tatyam |
提出日時 | 2019-04-19 23:21:59 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 36 ms / 2,000 ms |
コード長 | 8,376 bytes |
コンパイル時間 | 1,947 ms |
コンパイル使用メモリ | 208,424 KB |
実行使用メモリ | 6,912 KB |
最終ジャッジ日時 | 2024-05-07 08:17:31 |
合計ジャッジ時間 | 3,438 ms |
ジャッジサーバーID (参考情報) |
judge4 / 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 | 1 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 1 ms
5,376 KB |
testcase_06 | AC | 1 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 1 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 1 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 | 2 ms
5,376 KB |
testcase_15 | AC | 2 ms
5,376 KB |
testcase_16 | AC | 2 ms
5,376 KB |
testcase_17 | AC | 32 ms
6,912 KB |
testcase_18 | AC | 23 ms
5,376 KB |
testcase_19 | AC | 24 ms
5,376 KB |
testcase_20 | AC | 33 ms
6,784 KB |
testcase_21 | AC | 28 ms
6,528 KB |
testcase_22 | AC | 22 ms
5,376 KB |
testcase_23 | AC | 24 ms
5,376 KB |
testcase_24 | AC | 36 ms
6,912 KB |
testcase_25 | AC | 25 ms
5,376 KB |
testcase_26 | AC | 20 ms
5,376 KB |
testcase_27 | AC | 30 ms
6,784 KB |
testcase_28 | AC | 25 ms
6,400 KB |
testcase_29 | AC | 34 ms
6,912 KB |
testcase_30 | AC | 31 ms
6,528 KB |
testcase_31 | AC | 31 ms
6,656 KB |
testcase_32 | AC | 25 ms
6,656 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using ll=long long; using ld=long double; using ull=unsigned long long; using uint=unsigned int; using pcc=pair<char,char>; using pii=pair<int,int>; using pll=pair<ll,ll>; using pdd=pair<double,double>; using tuplis=pair<ll,pll>; using tuplis2=pair<pll,ll>; template<class T> using pq=priority_queue<T,vector<T>,greater<T>>; const ll LINF=0x1fffffffffffffff; const ll MOD=1000000007; const ll MODD=998244353; const int INF=0x3fffffff; const ld DINF=numeric_limits<ld>::infinity(); const ld EPS=1e-8; const vector<pii> four={{-1,0},{0,1},{1,0},{0,-1}}; #define _overload4(_1,_2,_3,_4,name,...) name #define _overload3(_1,_2,_3,name,...) name #define _rep1(n) for(ll i=0;i<n;++i) #define _rep2(i,n) for(ll i=0;i<n;++i) #define _rep3(i,a,b) for(ll i=a;i<b;++i) #define _rep4(i,a,b,c) for(ll i=a;i<b;i+=c) #define rep(...) _overload4(__VA_ARGS__,_rep4,_rep3,_rep2,_rep1)(__VA_ARGS__) #define _rrep1(n) for(ll i=n-1;i>=0;i--) #define _rrep2(i,n) for(ll i=n-1;i>=0;i--) #define _rrep3(i,a,b) for(ll i=b-1;i>=a;i--) #define _rrep4(i,a,b,c) for(ll i=a+(b-a-1)/c*c;i>=a;i-=c) #define rrep(...) _overload4(__VA_ARGS__,_rrep4,_rrep3,_rrep2,_rrep1)(__VA_ARGS__) #define each(i,a) for(auto &i:a) #define sum(...) accumulate(range(__VA_ARGS__),0LL) #define dsum(...) accumulate(range(__VA_ARGS__),double(0)) #define _range(i) (i).begin(),(i).end() #define _range2(i,k) (i).begin(),(i).begin()+k #define _range3(i,a,b) (i).begin()+a,(i).begin()+b #define range(...) _overload3(__VA_ARGS__,_range3,_range2,_range)(__VA_ARGS__) #define _rrange(i) (i).rbegin(),(i).rend() #define _rrange2(i,k) (i).rbegin(),(i).rbegin()+k #define _rrange3(i,a,b) (i).rbegin()+a,(i).rbegin()+b #define rrange(...) _overload3(__VA_ARGS__,_rrange3,_rrange2,_rrange)(__VA_ARGS__) #define elif else if #define unless(a) if(!(a)) #define mp make_pair #define mt make_tuple #define INT(...) int __VA_ARGS__;in(__VA_ARGS__) #define LL(...) ll __VA_ARGS__;in(__VA_ARGS__) #define STR(...) string __VA_ARGS__;in(__VA_ARGS__) #define CHR(...) char __VA_ARGS__;in(__VA_ARGS__) #define DBL(...) double __VA_ARGS__;in(__VA_ARGS__) #define vec(type,name,...) vector<type> name(__VA_ARGS__) #define VEC(type,name,size) vector<type> name(size);in(name) #define vv(type,name,h,...) vector<vector<type>>name(h,vector<type>(__VA_ARGS__)) #define VV(type,name,h,...) vector<vector<type>>name(h,vector<type>(__VA_ARGS__));in(name) #define vvv(type,name,h,w,...) vector<vector<vector<type>>>name(h,vector<vector<type>>(w,vector<type>(__VA_ARGS__))) struct SETTINGS{SETTINGS(){cout<<fixed<<setprecision(20);};};SETTINGS _SETTINGS(); inline constexpr ll gcd(ll a,ll b){if(!a||!b)return 0;while(b){ll c=b;b=a%b;a=c;}return a;} inline constexpr ll lcm(ll a,ll b){if(!a||!b)return 0;return a*b/gcd(a,b);} template<class T> inline constexpr T min(vector<T> &v){return *min_element(range(v));} inline char min(string &v){return *min_element(range(v));} template<class T> inline constexpr T max(vector<T> &v){return *max_element(range(v));} inline char max(string &v){return *max_element(range(v));} inline constexpr ll intpow(const ll&a,const ll&b){if(b==0)return 1;ll ans=intpow(a,b/2);return ans*ans*(b&1?a:1);} inline constexpr ll modpow(const ll&a,const ll&b,const ll&mod=MOD){if(b==0)return 1;ll ans=modpow(a,b/2,mod);ans=ans*ans%mod;if(b&1)ans=ans*a%mod;return ans;} template<typename T> inline constexpr bool update_min(T &mn,const T &cnt){if(mn>cnt){mn=cnt;return 1;}else return 0;} template<typename T> inline constexpr bool update_max(T &mx,const T &cnt){if(mx<cnt){mx=cnt;return 1;}else return 0;} inline int scan(){ return getchar(); } inline void scan(int &a){ scanf("%d", &a); } inline void scan(unsigned &a){ scanf("%u", &a); } inline void scan(long &a){ scanf("%ld", &a); } inline void scan(long long &a){ scanf("%lld", &a); } inline void scan(unsigned long long &a){ scanf("%llu", &a); } inline void scan(char &a){ scanf("%c", &a); } inline void scan(float &a){ scanf("%f", &a); } inline void scan(double &a){ scanf("%lf", &a); } inline void scan(long double &a){ scanf("%Lf", &a); } inline void scan(vector<bool> &vec){ for(unsigned i = 0; i < vec.size(); i++) { int a; scan(a); vec[i] = a; } } template<class T> inline void scan(vector<T> &vec); template<class T, size_t size> inline void scan(array<T, size> &vec); template<class T, class L> inline void scan(pair<T, L> &p); template<class T, size_t size> inline void scan(T (&vec)[size]); template<class T> inline void scan(vector<T> &vec){ for(auto &i : vec) scan(i); } template<class T, size_t size> inline void scan(array<T, size> &vec){ for(auto &i : vec) scan(i); } template<class T, class L> inline void scan(pair<T, L> &p){ scan(p.first); scan(p.second); } template<class T, size_t size> inline void scan(T (&vec)[size]){ for(auto &i : vec) scan(i); } template<class T> inline void scan(T &a){ cin>>a; } inline void in(){} template <class Head, class... Tail> inline void in(Head &head, Tail&... tail){ scan(head); in(tail...); } inline void print(){ putchar('\n'); } inline void print(const bool &a){ printf("%d", a); } inline void print(const int &a){ printf("%d", a); } inline void print(const unsigned &a){ printf("%u", a); } inline void print(const long &a){ printf("%ld", a); } inline void print(const long long &a){ printf("%lld", a); } inline void print(const unsigned long long &a){ printf("%llu", a); } inline void print(const char &a){ printf("%c", a); } inline void print(const char a[]){ printf("%s", a); } inline void print(const float &a){ printf("%.10f", a); } inline void print(const double &a){ printf("%.10lf", a); } inline void print(const long double &a){ printf("%.10Lf", a); } template<class T> void print(const vector<T> &vec); template<class T, size_t size> void print(const array<T, size> &vec); template<class T, class L> void print(const pair<T, L> &p); template<class T, size_t size> inline void print(const T (&vec)[size]); template<class T> void print(const vector<T> &vec){ print(vec[0]); for(auto i = vec.begin(); ++i != vec.end(); ){ putchar(' '); print(*i); } } template<class T, size_t size> void print(const array<T, size> &vec){ print(vec[0]); for(auto i = vec.begin(); ++i != vec.end(); ){ putchar(' '); print(*i); } } template<class T, class L> void print(const pair<T, L> &p){ print(p.first); putchar(' '); print(p.second); } template<class T, size_t size> inline void print(const T (&vec)[size]){ print(vec[0]); for(auto i = vec; ++i != end(vec); ){ putchar(' '); print(*i); } } template<class T> inline void print(const T &a){ cout << a; } inline bool out(){ putchar('\n'); return 0; } template<class T> inline bool out(const T &t){ print(t); putchar('\n'); return 0; } template<class Head, class... Tail> inline bool out(const Head &head, const Tail&... tail){ print(head); putchar(' '); out(tail...); return 0; } template <class T> inline void err(T t){cerr<<t<<'\n';} inline void err(){cerr<<'\n';} inline bool yes(bool i){return out(i?"yes":"no");} inline bool Yes(bool i){return out(i?"Yes":"No");} inline bool YES(bool i){return out(i?"YES":"NO");} inline bool Yay(bool i){return out(i?"Yay!":":(");} inline bool Possible(bool i){return out(i?"Possible":"Impossible");} inline bool POSSIBLE(bool i){return out(i?"POSSIBLE":"IMPOSSIBLE");} inline void Case(ll i){cout<<"Case #"<<i<<": ";} struct SegmentTree{ // range-sum ll size; vector<ll> data; SegmentTree(ll n){ size = 1; while(size < n) size *= 2; data.resize(size * 2); } void set(ll at, ll val){ at += size; data[at] = val; while(at /= 2) data[at] = max(data[at*2],data[at*2+1]); } ll get(ll l, ll r){ ll ans = -LINF; l += size; r += size; while(l < r){ if(l & 1) update_max(ans,data[l++]); if(r & 1) update_max(ans,data[--r]); l /= 2; r /= 2; } return ans; } }; signed main(){ LL(n,m); VEC(pll,a,n); SegmentTree seg(n+1); rep(n)seg.set(i+1,seg.get(i,i+1)+max(a[i].first,a[i].second)); ll ans=-LINF,cnt=0; rep(n){ if(a[i].first>=0){ if(a[i].second>a[i].first)cnt+=(m-1)*a[i].first+a[i].second; else cnt+=a[i].first*m; }else{ cnt+=max(a[i].second,m*a[i].first); } update_max(ans,cnt+seg.get(i+1,n+1)-seg.get(i+1,i+2)); } out(ans); }