結果
問題 | No.1150 シュークリームゲーム(Easy) |
ユーザー | renjyaku_int |
提出日時 | 2020-08-30 16:17:40 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 16 ms / 2,000 ms |
コード長 | 3,487 bytes |
コンパイル時間 | 2,331 ms |
コンパイル使用メモリ | 198,832 KB |
最終ジャッジ日時 | 2025-01-13 23:46:02 |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 43 |
ソースコード
//#include <tourist> #include <bits/stdc++.h> using namespace std; typedef long long ll; typedef pair<ll, ll> p; const int INF = 1e9; const ll LINF = ll(1e18); const int MOD = 1000000007; const int dx[4] = {0, 1, 0, -1}, dy[4] = {-1, 0, 1, 0}; const int Dx[8] = {0, 1, 1, 1, 0, -1, -1, -1}, Dy[8] = {-1, -1, 0, 1, 1, 1, 0, -1}; #define yes cout << "Yes" << endl #define YES cout << "YES" << endl #define no cout << "No" << endl #define NO cout << "NO" << endl #define rep(i, n) for (int i = 0; i < n; i++) #define ALL(v) v.begin(), v.end() #define debug(v) \ cout << #v << ":"; \ for (auto x : v) \ { \ cout << x << ' '; \ } \ cout << endl; template <class T> bool chmax(T &a, const T &b) { if (a < b) { a = b; return 1; } return 0; } template <class T> bool chmin(T &a, const T &b) { if (b < a) { a = b; return 1; } return 0; } //cout<<fixed<<setprecision(15);有効数字15桁 //-std=c++14 //-std=gnu++17 ll gcd(ll a, ll b) { return b ? gcd(b, a % b) : a; } ll lcm(ll a, ll b) { return a / gcd(a, b) * b; } int main() { cin.tie(0); ios::sync_with_stdio(false); ll n, s, t; cin >> n >> t >> s; vector<ll> a(n); rep(i, n) cin >> a[i]; rep(i, n) { a.push_back(a[i]); } rep(i, n) { a.push_back(a[i]); } ll sum_a = 0, sum_b = 0; s--; t--; if (s < t) { s += n; } if (n % 2 && (s - t) % 2) { for (int i = t; i <= t + (s - t) / 2; i++) { sum_a += a[i]; } for (int i = s; i >= s - (s - t) / 2; i--) { sum_b += a[i]; } t += n; for (int i = s + 1; i < s + (t - s) / 2; i++) { sum_b += a[i]; } for (int i = t - 1; i >= t - (t - s) / 2; i--) { sum_a += a[i]; } } else if (n % 2) { for (int i = t; i <= t + (s - t) / 2; i++) { sum_a += a[i]; } for (int i = s; i > s - (s - t) / 2; i--) { sum_b += a[i]; } t += n; for (int i = s + 1; i <= s + (t - s) / 2; i++) { sum_b += a[i]; } for (int i = t - 1; i >= t - (t - s) / 2; i--) { sum_a += a[i]; } } else if (n % 2 == 0 && (s - t) % 2) { for (int i = t; i <= t + (s - t) / 2; i++) { sum_a += a[i]; } for (int i = s; i >= s - (s - t) / 2; i--) { sum_b += a[i]; } t += n; for (int i = s + 1; i <= s + (t - s) / 2; i++) { sum_b += a[i]; } for (int i = t - 1; i >= t - (t - s) / 2; i--) { sum_a += a[i]; } } else { for (int i = t; i < t + (s - t) / 2; i++) { sum_a += a[i]; } for (int i = s; i > s - (s - t) / 2; i--) { sum_b += a[i]; } t += n; for (int i = s + 1; i < s + (t - s) / 2; i++) { sum_b += a[i]; } for (int i = t - 1; i > t - (t - s) / 2; i--) { sum_a += a[i]; } int temp = a[s - (s - t - n) / 2]; int temp1 = a[s + (t - s) / 2]; sum_a+=max(temp,temp1); sum_b+=min(temp,temp1); } cout<<sum_a-sum_b<<"\n"; }