結果
| 問題 |
No.1150 シュークリームゲーム(Easy)
|
| コンテスト | |
| 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";
}
renjyaku_int