結果

問題 No.703 ゴミ拾い Easy
ユーザー akusyounin2412
提出日時 2019-02-05 01:17:06
言語 C++14
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 290 ms / 1,500 ms
コード長 4,185 bytes
コンパイル時間 1,346 ms
コンパイル使用メモリ 128,084 KB
実行使用メモリ 17,360 KB
最終ジャッジ日時 2025-01-02 14:06:24
合計ジャッジ時間 9,392 ms
ジャッジサーバーID
(参考情報)
judge5 / judge1
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 4
other AC * 46
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

# include <iostream>
# include <algorithm>
#include <array>
# include <cassert>
#include <cctype>
#include <climits>
#include <numeric>
# include <vector>
# include <string>
# include <set>
# include <map>
# include <cmath>
# include <iomanip>
# include <functional>
# include <tuple>
# include <utility>
# include <stack>
# include <queue>
# include <list>
# include <bitset>
# include <complex>
# include <chrono>
# include <random>
# include <limits.h>
# include <unordered_map>
# include <unordered_set>
# include <deque>
# include <cstdio>
# include <cstring>
#include <stdio.h>
#include<time.h>
#include <stdlib.h>
#include <cstdint>
#include <cfenv>
#include<fstream>
//#include <bits/stdc++.h>
using namespace std;
using LL = long long;
using ULL = unsigned long long;
long long MOD = 1000000000 + 7; //924844033 1000000000 + 9;
constexpr long long INF = numeric_limits<LL>::max();
const double PI = acos(-1);
#define fir first
#define sec second
#define thi third
#define debug(x) cerr<<#x<<": "<<x<<'\n'
typedef pair<LL, LL> Pll;
typedef pair<double, double> Dll;
typedef pair<LL, pair<LL, LL>> Ppll;
typedef pair<LL, pair<LL, bitset<100001>>> Pbll;
typedef pair<LL, pair<LL, vector<LL>>> Pvll;
typedef pair<LL, LL> Vec2;
struct Tll { LL first, second, third; };
struct Fll { LL first, second, third, fourth; };
typedef pair<LL, Tll> Ptll;
#define rep(i,rept) for(LL i=0;i<rept;i++)
#define Rrep(i,mf) for(LL i=mf-1;i>=0;i--)
LL h, w, n, m, k, t, s, p, q, last, first, cnt, sum, ans,dp[400000], a[330020], b[330000];
string str, ss;
bool f[220000];
char c[4000][4000];
int di[4][2] = { { 0,1 },{ 1,0 },{ 0,-1 },{ -1,0 } };
struct Edge { LL to, cost; };
struct edge {
LL from, to, cost;
};
vector<vector<Edge>>vec,rvec;
vector<edge>ed;
vector<LL>v;
map<string, LL>ma;
set<LL>st;
void YN(bool f) {
if (f)
cout << "YES" << endl;
else
cout << "NO" << endl;
}
void yn(bool f) {
if (f)
cout << "Yes" << endl;
else
cout << "No" << endl;
}
template<typename T>
class ConvecHullTrick {
private:
// ()
std::vector<std::pair<T, T>> lines;
// ()x調
bool isMonotonicX;
// /
std::function<bool(T l, T r)> comp;
public:
// ( 調flag = true )
ConvecHullTrick(bool flagX = false, std::function<bool(T l, T r)> compFunc = [](T l, T r) {return l >= r; })
:isMonotonicX(flagX), comp(compFunc) {
//lines.emplace_back(0, 0);
};
// l1, l2, l3l2
bool check(std::pair<T, T> l1, std::pair<T, T> l2, std::pair<T, T> l3) {
if (l1 < l3) std::swap(l1, l3);
return (l3.second - l2.second) * (l2.first - l1.first) >= (l2.second - l1.second) * (l3.first - l2.first);
}
// y=ax+b
void add(T a, T b) {
std::pair<T, T> line(a, b);
while (lines.size() >= 2 && check(*(lines.end() - 2), lines.back(), line))
lines.pop_back();
lines.emplace_back(line);
}
// if_i(x)x
T f(int i, T x) {
return lines[i].first * x + lines[i].second;
}
// if_i(x)x
T f(std::pair<T, T> line, T x) {
return line.first * x + line.second;
}
// x()
T get(T x) {
// ()x調
if (isMonotonicX) {
static int head = 0;
while (lines.size() - head >= 2 && comp(f(head, x), f(head + 1, x)))
++head;
return f(head, x);
}
else {
int low = -1, high = lines.size() - 1;
while (high - low > 1) {
int mid = (high + low) / 2;
(comp(f(mid, x), f(mid + 1, x)) ? low : high) = mid;
}
return f(high, x);
}
}
};
ConvecHullTrick<LL> cht;
LL A[330000], X[330000], Y[330000];
int main() {
cin >> n;
rep(i, n) {
cin >> A[i];
}
rep(i, n) {
cin >> X[i];
}
rep(i, n) {
cin >> Y[i];
}
dp[0] = 0;
cht.add(-2*X[0], Y[0]*Y[0]+X[0]*X[0]);
rep(i, n) {
dp[i + 1] = A[i] * A[i] + cht.get(A[i]);
cht.add(-2 * X[i + 1], Y[i + 1] * Y[i + 1] + X[i + 1] * X[i + 1] + dp[i + 1]);
}
cout << dp[n] << endl;
return 0;
}
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