Submission #2213676
Source Code Expand
#include <bits/stdc++.h>
using namespace std;
/*{{{*/ //template
#define rep(i,n) for(int i=0;i<(int)(n);i++)
constexpr int INF = numeric_limits<int>::max()/2;
constexpr long long LINF = numeric_limits<long long>::max()/3;
#define mp make_pair
#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 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; }
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef vector<vi> vvi;
ll gcd(ll a,ll b){ if(b==0) return a; else return gcd(b,a%b); }
//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};
/*}}}*/
int main(){
int n,s,t;
cin >> n >> s >> t;
if(s > t){
cout << -1 << endl;
return 0;
}
int cnt = 0;
while(s != t){
t /= 2;
cnt++;
if(s > t){
cout << -1 << endl;
return 0;
}
}
cout << cnt << endl;
}
Submission Info
Submission Time |
|
Task |
B - Camphor Tree |
User |
chakku000 |
Language |
C++14 (GCC 5.4.1) |
Score |
100 |
Code Size |
2004 Byte |
Status |
AC |
Exec Time |
1 ms |
Memory |
256 KB |
Judge Result
Set Name |
All |
Score / Max Score |
100 / 100 |
Status |
|
Set Name |
Test Cases |
All |
00_sample, 01_sample, 02_sample, max_01, max_02, max_03, max_04, max_05, max_06, max_07, max_08, max_09, min_00 |
Case Name |
Status |
Exec Time |
Memory |
00_sample |
AC |
1 ms |
256 KB |
01_sample |
AC |
1 ms |
256 KB |
02_sample |
AC |
1 ms |
256 KB |
max_01 |
AC |
1 ms |
256 KB |
max_02 |
AC |
1 ms |
256 KB |
max_03 |
AC |
1 ms |
256 KB |
max_04 |
AC |
1 ms |
256 KB |
max_05 |
AC |
1 ms |
256 KB |
max_06 |
AC |
1 ms |
256 KB |
max_07 |
AC |
1 ms |
256 KB |
max_08 |
AC |
1 ms |
256 KB |
max_09 |
AC |
1 ms |
256 KB |
min_00 |
AC |
1 ms |
256 KB |