結果

問題 No.1391 ±1 Abs Sum
ユーザー lorent_kyopro
提出日時 2021-02-12 23:08:22
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
WA  
実行時間 -
コード長 3,910 bytes
コンパイル時間 2,880 ms
コンパイル使用メモリ 197,316 KB
最終ジャッジ日時 2025-01-18 19:39:26
ジャッジサーバーID
(参考情報)
judge4 / judge3
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 3
other AC * 21 WA * 13
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

// #pragma GCC target("avx2")
// #pragma GCC optimize("O3")
// #pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (int)n; ++i)
#define rrep(i, n) for (int i = (int)n - 1; i >= 0; --i)
#define ALL(v) v.begin(), v.end()
#define pb push_back
#define eb emplace_back
#define fi first
#define se second
using namespace std;
using ll = long long;
using ld = long double;
const array<int, 8> di = {0, 1, 0, -1, 1, 1, -1, -1}, dj = {1, 0, -1, 0, 1, -1, -1, 1};
const array<string, 2> YESNO = {"NO", "YES"};
const array<string, 2> YesNo = {"No", "Yes"};
const array<string, 2> yesno = {"no", "yes"};
void YES(bool b = true) { cout << YESNO[b] << '\n'; }
void Yes(bool b = true) { cout << YesNo[b] << '\n'; }
void yes(bool b = true) { cout << yesno[b] << '\n'; }
template<typename T, typename U>
inline bool chmax(T& a, const U& b) {
if (a < b){
a = b;
return true;
}
return false;
}
template<typename T, typename U>
inline bool chmin(T& a, const U& b) {
if (a > b) {
a = b;
return true;
}
return false;
}
template<typename T>
T MAX(const vector<T>& v) { return *max_element(v.begin(), v.end()); }
template<typename T>
T MIN(const vector<T>& v) { return *min_element(v.begin(), v.end()); }
template<typename T>
T SUM(const vector<T>& v) { return accumulate(v.begin(), v.end(), T()); }
template<typename T>
void UNIQUE(vector<T>& v) {
sort(v.begin(), v.end());
v.erase(unique(v.begin(), v.end()), v.end());
}
template<typename T>
T POW(T a, int n) {
T res = 1;
for (; n > 0; n >>= 1, a *= a) if (n & 1) res *= a;
return res;
}
template<typename T>
int lb(const vector<T>& v, T x) {
return distance(v.begin(), lower_bound(v.begin(), v.end(), x));
}
template<typename T>
int ub(const vector<T>& v, T x) {
return distance(v.begin(), upper_bound(v.begin(), v.end(), x));
}
/**
* @brief vector
* @author
*/
namespace detail {
template<typename T, int N>
auto make_vec(vector<int>& sizes, T const& x) {
if constexpr (N == 1) {
return vector(sizes[0], x);
} else {
int size = sizes[N-1];
sizes.pop_back();
return vector(size, make_vec<T, N-1>(sizes, x));
}
}
}
template<typename T, int N>
auto make_vec(int const(&sizes)[N], T const& x = T()) {
vector<int> s(N);
for (int i = 0; i < N; ++i) s[i] = sizes[N-i-1];
return detail::make_vec<T, N>(s, x);
}
template<typename T>
ostream& operator<<(ostream& os, const vector<T>& v) {
for (auto it = v.begin(); it != v.end(); ++it) {
if (it == v.begin()) os << *it;
else os << ' ' << *it;
}
return os;
}
template<typename T, typename U>
ostream& operator<<(ostream& os, const pair<T, U>& p) {
os << p.first << ' ' << p.second;
return os;
}
__attribute__((constructor))
void setup() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
cout << fixed << setprecision(15);
}
// #include <atcoder/all>
// using namespace atcoder;
// using mint = modint1000000007;
// using mint = modint998244353;
int main() {
int n, k;
cin >> n >> k;
vector<ll> a(n);
rep(i, n) cin >> a[i];
ll ans = LLONG_MAX;
rep(t, 2) {
ll now = 0;
rep(i, n) {
if (i < n-k) now += -abs(a[0] - a[i]);
else now += abs(a[0] - a[i]);
}
chmin(ans, now);
for (int i = 0; i < n-1; ++i) {
ll d = a[i+1] - a[i];
if (i < n-k) {
now -= d * (i+1);
now += d * (n-k-i-1);
now -= d * k;
} else {
now -= d * (n-k);
now += d * (i-(n-k)+1);
now -= d * (n-1-i);
}
chmin(ans, now);
}
reverse(ALL(a));
rep(i, n) a[i] = -a[i];
}
cout << ans << '\n';
}
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
0