結果
| 問題 |
No.281 門松と魔法(1)
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2015-09-18 23:29:40 |
| 言語 | C++11(廃止可能性あり) (gcc 13.3.0) |
| 結果 |
RE
|
| 実行時間 | - |
| コード長 | 1,822 bytes |
| コンパイル時間 | 1,442 ms |
| コンパイル使用メモリ | 159,608 KB |
| 実行使用メモリ | 6,820 KB |
| 最終ジャッジ日時 | 2024-11-06 19:28:40 |
| 合計ジャッジ時間 | 3,992 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 46 WA * 2 RE * 9 |
ソースコード
#include <bits/stdc++.h>
#define rep(i, a) rep2 (i, 0, a)
#define rep2(i, a, b) for (int i = (a); i < (b); i++)
#define repr(i, a) repr2 (i, 0, a)
#define repr2(i, a, b) for (int i = (b) - 1; i >= (a); i--)
#define chmin(a, b) ((b) < a && (a = (b), true))
#define chmax(a, b) (a < (b) && (a = (b), true))
#define rng(a) (a).begin(), (a).end()
using namespace std;
typedef long long ll;
int main() {
ll d, h1, h2, h3;
cin >> d >> h1 >> h2 >> h3;
if (h1 < h2 && h2 > h3 && h1 != h3) {
cout << 0 << endl;
return 0;
}
if (h1 > h2 && h2 < h3 && h1 != h3) {
cout << 0 << endl;
return 0;
}
const ll inf = 1e18;
auto f = [&](ll a, ll b) {
if (a < b) return inf;
return (a - b + d) / d;
};
auto g = [&](ll a) {
return max(0ll, a - d);
};
ll ans = inf;
{
ll th1 = h1;
ll cand = 0;
if (th1 == h3) th1 = g(th1), cand++;
ll c = f(h2, min(th1, h3));
cand += c;
ll th2 = max(0ll, h2 - c * d);
if (th1 == th2 || th2 == h3 || h3 == th1) cand = inf;
cerr << cand << endl;
chmin(ans, cand);
}
{
ll th3 = h3;
ll cand = 0;
if (h2 == th3) th3 = g(th3), cand++;
ll c = f(h1, h3);
cand += c;
ll th1 = max(0ll, h1 - c * d);
if (th1 == h2 || h2 == th3 || th3 == th1) cand = inf;
cerr << cand << endl;
chmin(ans, cand);
}
{
ll th1 = h1;
ll cand = 0;
if (th1 == h2) th1 = g(th1), cand++;
ll c = f(h3, h2);
cand += c;
ll th3 = max(0ll, h3 - c * d);
if (th1 == h2 || h2 == th3 || th3 == th1) cand = inf;
cerr << cand << endl;
chmin(ans, cand);
}
if (ans >= inf) ans = -1;
cout << ans << endl;
}