PROBLEM LINK:
Contest Division 1
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Contest Division 3
Practice
Setter: Daanish Mahajan
Tester: Felipe Mota
Editorialist: Aman Dwivedi
DIFFICULTY
Cakewalk
PREREQUISITES
Maths
PROBLEM:
Chef aims to be the richest person in Chefland by his new restaurant franchise. Currently, his assets are worth A billion dollars and have no liabilities. He aims to increase his asset by X billion dollars per year.
How much minimum time will it take Chef to be the richest person given he should be worth at least B billion dollars to meet the target.
QUICK EXPLANATION:
Currently, Chef has A billion dollars and he needs at least B billion dollars to become the richest person. Hence the amount that Chef need is :
Now, every year Chef increases its asset by X billion dollars. Hence the minimum time that Chef needs to increase its asset by Amt billion dollars is:
This is the minimum time that Chef needs to become the richest person in Chefland.
TIME COMPLEXITY:
O(1) per test case
SOLUTIONS:
Setter
Tester
Editorialist
#include<bits/stdc++.h>
using namespace std;
#define int long long
void solve()
{
int a,b,x;
cin>>a>>b>>x;
int diff=b-a;
int ans=diff/x;
if(diff%x)
ans++;
cout<<ans<<"\n";
}
int32_t main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
int t;
cin>>t;
while(t--)
solve();
return 0;
}
