結果
| 問題 |
No.2284 Assembly
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2023-10-01 15:16:00 |
| 言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 36 ms / 2,000 ms |
| コード長 | 4,508 bytes |
| コンパイル時間 | 3,630 ms |
| コンパイル使用メモリ | 253,664 KB |
| 実行使用メモリ | 6,528 KB |
| 最終ジャッジ日時 | 2024-07-26 13:28:08 |
| 合計ジャッジ時間 | 4,998 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 16 |
ソースコード
#include <bits/stdc++.h>
// #include <ext/pb_ds/assoc_container.hpp>
// #include <ext/pb_ds/tree_policy.hpp>
#define int long long
#define ld long double
#define get(T,args...) T args; read(args);
#define init(a,T,n,s) vector<T> a((n)+1,s); cin>>a;
#define putn(args...) { put(args); cout<<"\n"; }
#define pute(args...) { put(args); cout<<endl; }
#define putr(args...) { putn(args) return ;}
#define rep(i,a,b) for(int i=(a); i<(b); i++)
#define repr(i,a,b) for(int i=(a); i>(b); i--)
#define logarr(arr,f,l) { auto start=arr.begin(), end=arr.begin(); advance(start,(f)); advance(end,(l)); for(auto it=start; it!=end; it++) cout<<*it<<" "; cout<<"\n"; }
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define sort_by(span,p) sort(span, [&](const auto &l, const auto &r) { return p; })
#define f(u, args...) [&](auto &&u) { return args; }
#define g(u, v, args...) [&](auto &&u, auto &&v) { return args; }
#define uniq(x) x.erase(unique(all(x)),x.end());
#define sz(x) (int)(x).size()
#define mid(l,r) std::midpoint((l),(r))
#define zov(v,z,c) ((c) ? (v) : (z))
#define pii pair<int,int>
#define pb emplace_back
#define pf push_front
#define fr first
#define sc second
#define sumv(v,b,e) accumulate((v).begin()+b,(v).begin()+e,0LL)
#define minv(v,b,e) min_element((v).begin()+b,(v).begin()+e)
#define maxv(v,b,e) max_element((v).begin()+b,(v).begin()+e)
#define precise(n) cout<<fixed<<setprecision((n))
#define bpc(n) std::popcount((unsigned long long)(n))
#define hsb(n) std::has_single_bit((unsigned long long)(n))
#define MSB(n) std::bit_floor((unsigned long long)(n))
#define ctz(n) ((n) ? __builtin_ctzll((unsigned long long)(n)) : 0)
#define clz(n) ((n) ? __builtin_clzll((unsigned long long)(n)) : 64)
#define LSB(n) ((n)&(-(n)))
#define vec(args...) std::vector<args>
#define set(args...) std::set<args,Comp<args> >
#define pqueue(args...) std::priority_queue<args,vector<args>,Comp<args> >
#define oset(args...) tree<args, null_type, less<args>, rb_tree_tag, tree_order_statistics_node_update>
constexpr int N = 100'001, M = 998'244'353, mod = 1'000'000'007, MX = INT64_MAX, MN = INT64_MIN, oo = 4e18;
#ifdef DEBUG
#include "./Debug/debug.hpp"
#else
#define debug(args...) 0;
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#endif
// using namespace __gnu_pbds;
using namespace std;
vec(string) tokenizer(string str,char ch) {std::istringstream var((str)); vec(string) v; string t; while(getline((var), t, (ch))) {v.pb(t);} return v;}
template<typename T> struct Comp { bool operator()(const T& l, const T& r) const { return l < r; } };
template<typename T1, typename T2> inline istream& operator >> (istream& in, pair<T1,T2>& a) { in>>a.first>>a.second; return in; }
template<typename T1, typename T2> inline ostream& operator << (ostream& out, pair<T1,T2> a) { out<<a.first<<" "<<a.second; return out; }
template<typename T> istream& operator >> (istream& in, vector<T>& v) { rep(i,1,sz(v)) cin>>v[i]; return in; }
template<typename T,typename T1> inline bool amax(T &a,T1 b){ if(b>a) { a=b; return true; } return false; }
template<typename T,typename T1> inline bool amin(T &a,T1 b){ if(b<a) { a=b; return true; } return false; }
void read(auto&... args) { ((cin>>args), ...); }
void put(auto&&... args) { ((cout<<args<<" "), ...);}
void file_i_o()
{
freopen("./tests/test01.txt", "r", stdin);
freopen("./tests/output01.txt", "w", stdout);
}
// If you win, you live. You cannot win unless you fight.
void TATAKAE(int T)
{
get(int,n)
vector<int> a(n),b(n);
for(int i=0; i<n; i++) cin>>a[i]>>b[i];
int ans = 0, suma = 0, sumb = 0;
for(int i=n-1; i>=0; i--){
int mx = 0;
//make him sit in front
amax(mx, suma*b[i]);
//make him sit in back
amax(mx, a[i]*sumb);
ans += mx;
suma += a[i];
sumb += b[i];
}
cout<<ans<<"\n";
}
signed main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
//file_i_o();
int t=1;
rep(i,1,t+1)
{
//cout<<"Case #"<<i<<": ";
TATAKAE(i);
}
#ifndef ONLINE_JUDGE
cerr<<"\ntime taken : "<<(float)clock()/CLOCKS_PER_SEC<<" secs"<<"\n";
#endif
return 0;
}