結果
| 問題 |
No.1374 Absolute Game
|
| コンテスト | |
| ユーザー |
Enjapma_kyopro
|
| 提出日時 | 2021-02-05 21:48:23 |
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 24 ms / 2,000 ms |
| コード長 | 3,694 bytes |
| コンパイル時間 | 1,684 ms |
| コンパイル使用メモリ | 179,420 KB |
| 実行使用メモリ | 6,944 KB |
| 最終ジャッジ日時 | 2024-07-02 12:21:07 |
| 合計ジャッジ時間 | 3,001 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 26 |
ソースコード
#include <bits/stdc++.h>
#include <numeric>
using namespace std;
// using mint = long double;
// using mint = modint998244353;
// using mint = modint1000000007;
typedef long long ll;
typedef pair<ll, ll> P;
typedef pair<P, ll> T;
typedef pair<ll, vector<ll> > Pd;
const ll INF = 1e18;
const ll fact_table = 3200008;
priority_queue <ll> pql;
priority_queue <P> pqp;
//big priority queue
// priority_queue <ll, vector<ll>, greater<ll> > pqls;
priority_queue <P, vector<P>, greater<P> > pqps;
//small priority queue
//top pop
ll dx[8] = {1, 0, -1, 0, 1, 1, -1, -1};
ll dy[8] = {0, 1, 0, -1, -1, 1, 1, -1};
//↓,→,↑,←
/*
#define endl "\n"
#ifdef ENJAPMA
#undef endl
#endif
*/
#define p(x) cout<<x<<endl;
#define el cout<<endl;
#define pe(x) cout<<x<<" ";
#define ps(x) cout<<fixed<<setprecision(25)<<x<<endl;
#define pu(x) cout<<(x);
#define pb push_back
#define lb lower_bound
#define ub upper_bound
#define pc(x) cout << x << ",";
#define rep(i, n) for (ll i = 0; i < (n); i ++)
#define rep2(i, a, b) for (ll i = a; i <= (b); i++)
#define rep3(i, a, b) for (ll i = a; i >= (b); i--)
typedef vector<ll> vec;
typedef vector<vector<ll>> mat;
// vec v(n) -> 長さnのベクトルを宣言
// mat dp(h, vec(w)) -> h * w の行列を宣言
const ll mod = 998244353ll;
// const ll mod = 1000000007ll;
ll mypow(ll a, ll b, ll m = mod) {ll x = 1; while (b) {while (!(b & 1)) {(a *= a) %= m; b >>= 1;}(x *= a) %= m; b--;} return x;}
vec rv(ll read) { vec res(read); for (int i = 0; i < read; i++) { cin >> res[i]; } return res;}
void YES(bool cond) { if (cond) { p("YES");} else { p("NO");} return;}
void Yes(bool cond) { if (cond) { p("Yes");} else { p("No");} return;}
void line() { p("--------------------"); return;}
/*
ll fact[fact_table + 5], rfact[fact_table + 5];
void c3_init() {
fact[0] = rfact[0] = 1;
for (ll i = 1; i <= fact_table; i++) {
fact[i] = (fact[i - 1] * i) % mod;
}
rfact[fact_table] = mypow(fact[fact_table], mod - 2, mod);
for (ll i = fact_table; i >= 1; i--) {
rfact[i - 1] = rfact[i] * i;
rfact[i - 1] %= mod;
}
return;
}
ll c3(ll n, ll r) {
return (((fact[n] * rfact[r]) % mod ) * rfact[n - r]) % mod;
}
*/
bool icpc = false;
bool multicase = false;
ll x[500005];
ll n;
vec v;
ll calc(bool a, bool b) {
deque<ll> deq;
ll sa = 0, sb = 0;
for (int i = 0; i < n; i++) {
deq.push_back(v[i]);
}
for (int i = 0; i < n; i++) {
if (i % 2 == 0 && a) {
ll e = deq.front();
deq.pop_front();
sa += e;
} else if (i % 2 == 0 && !a) {
ll e = deq.back();
deq.pop_back();
sa += e;
} else if (i % 2 == 1 && b) {
ll e = deq.front();
deq.pop_front();
sb += e;
} else {
ll e = deq.back();
deq.pop_back();
sb += e;
}
}
return abs(sa) - abs(sb);
}
bool solve () {
cin >> n;
v.resize(n);
for (int i = 0; i < n; i++) {
cin >> v[i];
}
sort(v.begin(), v.end());
ll s1 = calc(true, true);
ll s2 = calc(true, false);
ll s3 = calc(false, true);
ll s4 = calc(false, false);
// pe(s1); pe(s2); pe(s3); p(s4);
ll ans = max(min(s1, s2), min(s3, s4));
p(ans);
return true;
}
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
if (icpc) {
while (solve());
return 0;
}
ll q, testcase = 1;
if (multicase) {
cin >> q;
} else {
q = 1;
}
while (q--) {
// pu("Case ");pu("#");pu(testcase);pu(": ");
solve();
testcase++;
}
// solve();
return 0;
}
Enjapma_kyopro