/ SeriousOJ /

Record Detail

Accepted


  
# Status Time Cost Memory Cost
#1 Accepted 1ms 540.0 KiB
#2 Accepted 1ms 388.0 KiB
#3 Accepted 1ms 356.0 KiB
#4 Accepted 32ms 840.0 KiB
#5 Accepted 32ms 844.0 KiB

Code

#include<bits/stdc++.h>
typedef long long   ll;
#define endl        '\n'
#define F           first
#define S           second
#define pb          push_back
#define yes         cout<<"YES\n"
#define no          cout<<"NO\n"
#define all(x)      x.begin(),x.end()
#define allr(x)     x.rbegin(),x.rend()
#define error1(x)   cerr<<#x<<" = "<<(x)<<endl
#define error2(a,b) cerr<<"("<<#a<<", "<<#b<<") = ("<<(a)<<", "<<(b)<<")\n";
#define coutall(v)  for(auto &it: v) cout<<it<<" "; cout<<endl;
#define _ASRafi__   ios::sync_with_stdio(false); cin.tie(0);
using namespace std;

void solve()
{
    ll a, b, ans1 = 0, ans2 = 0;
    cin >> a >> b;
    if(a == b)
    {
        cout << 0 << endl;
        return;
    }
    ll tmpA = a;
    while(a * 2LL <= b) a *= 2LL, ++ans1;
    ans1 += (b - a);

    a = tmpA;
    if(b & 1) ++ans2, --b;
    while(a <= b / 2LL) 
    {
        b /= 2LL, ++ans2;
        if(a < b && (b & 1)) --b, ++ans2;
    }
    ans2 += b - a;

    // error2(ans1, ans2);
    cout << min(ans1, ans2) << endl;
    return;
}

int32_t main()
{
    _ASRafi__;
    int tc = 1;
    cin >> tc;
    for (int t = 1; t <= tc; t++)
    {
        // cout << "Case " << t << ": ";
        solve();
    }
    return 0;
}

Information

Submit By
Type
Submission
Problem
P1044 Add or multiple
Contest
TLE_Headquarters - round #1
Language
C++17 (G++ 13.2.0)
Submit At
2024-03-27 16:41:11
Judged At
2024-03-27 16:41:11
Judged By
Score
100
Total Time
32ms
Peak Memory
844.0 KiB