結果
| 問題 |
No.281 門松と魔法(1)
|
| ユーザー |
chakku
|
| 提出日時 | 2020-02-05 01:52:00 |
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
RE
|
| 実行時間 | - |
| コード長 | 2,895 bytes |
| コンパイル時間 | 1,486 ms |
| コンパイル使用メモリ | 170,548 KB |
| 実行使用メモリ | 6,948 KB |
| 最終ジャッジ日時 | 2024-09-21 07:56:17 |
| 合計ジャッジ時間 | 3,307 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 50 WA * 3 RE * 4 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
/*{{{*/ //template
#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define rrep(i,n) for(int i=(n)-1;i>=0;i--)
constexpr int INF = numeric_limits<int>::max()/2;
constexpr long long LINF = numeric_limits<long long>::max()/3;
#define pb push_back
#define eb emplace_back
#define fi first
#define se second
#define all(v) (v).begin(),(v).end()
#define sz(x) (int)(x).size()
#define debug(x) cerr<<#x<<":"<<x<<endl
#define debug2(x,y) cerr<<#x<<","<<#y":"<<x<<","<<y<<endl
//struct fin{ fin(){ cin.tie(0); ios::sync_with_stdio(false); } } fin_;
struct Double{ double d; explicit Double(double x) : d(x){} };
ostream& operator<<(ostream& os,const Double x){ os << fixed << setprecision(20) << x.d; return os; }
template<typename T> ostream& operator<<(ostream& os,const vector<T>& vec){ os << "["; for(const auto& v : vec){ os << v << ","; } os << "]"; return os; }
template<typename T,typename U> ostream& operator<<(ostream& os, const map<T,U>& mp){ os << "{"; for(auto& p : mp){ os << p << ","; } os << "}"; return os; }
template<typename T,typename U> ostream& operator<<(ostream& os,const pair<T,U>& p){ os << "(" << p.first << ","<< p.second <<")"; return os; }
template<typename T> ostream& operator<<(ostream& os,const set<T>& st){ os<<"{"; for(T v:st) os<<v<<","; os <<"}"; return os; }
template<typename T,typename U> inline void chmax(T &x,U y){ if(y>x) x = y; }
template<typename T,typename U> inline void chmin(T &x,U y){ if(y<x) x = y; }
using ll = long long;
using ull = unsigned long long;
using pii = std::pair<int,int>;
using vi = std::vector<int>;
typedef vector<vi> vvi;
ll gcd(ll a,ll b){ if(b==0) return a; else return gcd(b,a%b); }
constexpr ll TEN(int n) { return (n == 0) ? 1 : 10 * TEN(n - 1); }
//constexpr double eps = 1e-14;
constexpr double eps = 1e-10;
constexpr ll mod = 1e9+7;
const int dx[]={1,0,-1,0} ,dy[] = {0,1,0,-1};
/*}}}*/
ll d;
ll minimize(vector<ll> h){
ll ret = 0;
if(h[1] == h[2]){
h[1] = max<ll>(h[1]-d,0);
ret++;
}
if(h[1] == 0) return LINF;
if(h[0] < h[1]) return ret;
return (h[0]-(h[1]-1)+d-1)/d + ret;
}
ll maximize(vector<ll> h){
if(h[0] == 0) return LINF;
ll ret = 0;
if(h[0] < h[1]){
ll t = (h[1] - (h[0] - 1) + d - 1) / d;
h[1] = max(0LL,h[1] - t * d);
ret += t;
}
if(h[0] < h[2]){
ll t = (h[2] - (h[0] - 1) + d - 1) / d;
h[2] = max(0LL,h[2] - t * d);
ret += t;
}
if(h[1] == h[2]){
h[1] = max<ll>(h[1]-d,0);
ret++;
}
if(h[1] == h[2]){
return LINF;
}
return ret;
}
int main(){
cin >> d;
vector<ll> h(3); rep(i,3) cin >> h[i];
swap(h[0],h[1]);
if(h[1] > h[2]) swap(h[1],h[2]);
ll ans = min(minimize(h), maximize(h));
if(ans == LINF){
cout << -1 << endl;
return 0;
}
cout << ans << endl;
}
chakku