Hackerrank Minimum Loss Solution
.MathJax_SVG_Display {text-align: center; margin: 1em 0em; position: relative; display: block!important; text-indent: 0; max-width: none; max-height: none; min-width: 0; min-height: 0; width: 100%} .MathJax_SVG .MJX-monospace {font-family: monospace} .MathJax_SVG .MJX-sans-serif {font-family: sans-serif} .MathJax_SVG {display: inline; font-style: normal; font-weight: normal; line-height: normal; font-size: 100%; font-size-adjust: none; text-indent: 0; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0; min-height: 0; border: 0; padding: 0; margin: 0} .MathJax_SVG * {transition: none; -webkit-transition: none; -moz-transition: none; -ms-transition: none; -o-transition: none} .mjx-svg-href {fill: blue; stroke: blue} .MathJax_SVG_LineBox {display: table!important} .MathJax_SVG_LineBox span {display: table-cell!important; width: 10000em!important; min-width: 0; max-width: none; padding: 0; border: 0; margin: 0}
Lauren has a chart of distinct projected prices for a house over the next several years. She must buy the house in one year and sell it in another, and she must do so at a loss. She wants to minimize her financial loss.
For example, the house is valued at over the next years. She can purchase the home in any year, but she must resell the house at a loss in one of the following years. Her minimum loss would be incurred by purchasing in year at and reselling in year at .
Find and print the minimum amount of money Lauren must lose if she buys the house and resells it within the next years.
Note: It's guaranteed that a valid answer exists.
Function Description
Complete the minimumLoss function in the editor below. It should return an integer that represents the minimum loss that can be achieved.
minimumLoss has the following parameter(s):
- price: an array of integers that represent prices at each year
Input Format.MathJax_SVG_Display {text-align: center; margin: 1em 0em; position: relative; display: block!important; text-indent: 0; max-width: none; max-height: none; min-width: 0; min-height: 0; width: 100%} .MathJax_SVG .MJX-monospace {font-family: monospace} .MathJax_SVG .MJX-sans-serif {font-family: sans-serif} .MathJax_SVG {display: inline; font-style: normal; font-weight: normal; line-height: normal; font-size: 100%; font-size-adjust: none; text-indent: 0; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0; min-height: 0; border: 0; padding: 0; margin: 0} .MathJax_SVG * {transition: none; -webkit-transition: none; -moz-transition: none; -ms-transition: none; -o-transition: none} .mjx-svg-href {fill: blue; stroke: blue} .MathJax_SVG_LineBox {display: table!important} .MathJax_SVG_LineBox span {display: table-cell!important; width: 10000em!important; min-width: 0; max-width: none; padding: 0; border: 0; margin: 0}
The first line contains an integer , the number of years of house data.
The second line contains space-separated long integers describing each .
Constraints.MathJax_SVG_Display {text-align: center; margin: 1em 0em; position: relative; display: block!important; text-indent: 0; max-width: none; max-height: none; min-width: 0; min-height: 0; width: 100%} .MathJax_SVG .MJX-monospace {font-family: monospace} .MathJax_SVG .MJX-sans-serif {font-family: sans-serif} .MathJax_SVG {display: inline; font-style: normal; font-weight: normal; line-height: normal; font-size: 100%; font-size-adjust: none; text-indent: 0; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0; min-height: 0; border: 0; padding: 0; margin: 0} .MathJax_SVG * {transition: none; -webkit-transition: none; -moz-transition: none; -ms-transition: none; -o-transition: none} .mjx-svg-href {fill: blue; stroke: blue} .MathJax_SVG_LineBox {display: table!important} .MathJax_SVG_LineBox span {display: table-cell!important; width: 10000em!important; min-width: 0; max-width: none; padding: 0; border: 0; margin: 0}
- All the prices are distinct.
- A valid answer exists.
Subtasks
- for of the maximum score.
Output Format.MathJax_SVG_Display {text-align: center; margin: 1em 0em; position: relative; display: block!important; text-indent: 0; max-width: none; max-height: none; min-width: 0; min-height: 0; width: 100%} .MathJax_SVG .MJX-monospace {font-family: monospace} .MathJax_SVG .MJX-sans-serif {font-family: sans-serif} .MathJax_SVG {display: inline; font-style: normal; font-weight: normal; line-height: normal; font-size: 100%; font-size-adjust: none; text-indent: 0; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0; min-height: 0; border: 0; padding: 0; margin: 0} .MathJax_SVG * {transition: none; -webkit-transition: none; -moz-transition: none; -ms-transition: none; -o-transition: none} .mjx-svg-href {fill: blue; stroke: blue}
Print a single integer denoting the minimum amount of money Lauren must lose if she buys and resells the house within the next years.
Sample Input 0.MathJax_SVG_Display {text-align: center; margin: 1em 0em; position: relative; display: block!important; text-indent: 0; max-width: none; max-height: none; min-width: 0; min-height: 0; width: 100%} .MathJax_SVG .MJX-monospace {font-family: monospace} .MathJax_SVG .MJX-sans-serif {font-family: sans-serif} .MathJax_SVG {display: inline; font-style: normal; font-weight: normal; line-height: normal; font-size: 100%; font-size-adjust: none; text-indent: 0; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0; min-height: 0; border: 0; padding: 0; margin: 0} .MathJax_SVG * {transition: none; -webkit-transition: none; -moz-transition: none; -ms-transition: none; -o-transition: none} .mjx-svg-href {fill: blue; stroke: blue} .MathJax_SVG_LineBox {display: table!important} .MathJax_SVG_LineBox span {display: table-cell!important; width: 10000em!important; min-width: 0; max-width: none; padding: 0; border: 0; margin: 0} 35 10 3
Sample Output 0.MathJax_SVG_Display {text-align: center; margin: 1em 0em; position: relative; display: block!important; text-indent: 0; max-width: none; max-height: none; min-width: 0; min-height: 0; width: 100%} .MathJax_SVG .MJX-monospace {font-family: monospace} .MathJax_SVG .MJX-sans-serif {font-family: sans-serif} .MathJax_SVG {display: inline; font-style: normal; font-weight: normal; line-height: normal; font-size: 100%; font-size-adjust: none; text-indent: 0; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0; min-height: 0; border: 0; padding: 0; margin: 0} .MathJax_SVG * {transition: none; -webkit-transition: none; -moz-transition: none; -ms-transition: none; -o-transition: none} .mjx-svg-href {fill: blue; stroke: blue} 2
Explanation 0.MathJax_SVG_Display {text-align: center; margin: 1em 0em; position: relative; display: block!important; text-indent: 0; max-width: none; max-height: none; min-width: 0; min-height: 0; width: 100%} .MathJax_SVG .MJX-monospace {font-family: monospace} .MathJax_SVG .MJX-sans-serif {font-family: sans-serif} .MathJax_SVG {display: inline; font-style: normal; font-weight: normal; line-height: normal; font-size: 100%; font-size-adjust: none; text-indent: 0; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0; min-height: 0; border: 0; padding: 0; margin: 0} .MathJax_SVG * {transition: none; -webkit-transition: none; -moz-transition: none; -ms-transition: none; -o-transition: none} .mjx-svg-href {fill: blue; stroke: blue} .MathJax_SVG_LineBox {display: table!important} .MathJax_SVG_LineBox span {display: table-cell!important; width: 10000em!important; min-width: 0; max-width: none; padding: 0; border: 0; margin: 0}
Lauren buys the house in year at and sells it in year at for a minimal loss of .
Sample Input 1.MathJax_SVG_Display {text-align: center; margin: 1em 0em; position: relative; display: block!important; text-indent: 0; max-width: none; max-height: none; min-width: 0; min-height: 0; width: 100%} .MathJax_SVG .MJX-monospace {font-family: monospace} .MathJax_SVG .MJX-sans-serif {font-family: sans-serif} .MathJax_SVG {display: inline; font-style: normal; font-weight: normal; line-height: normal; font-size: 100%; font-size-adjust: none; text-indent: 0; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0; min-height: 0; border: 0; padding: 0; margin: 0} .MathJax_SVG * {transition: none; -webkit-transition: none; -moz-transition: none; -ms-transition: none; -o-transition: none} .mjx-svg-href {fill: blue; stroke: blue} .MathJax_SVG_LineBox {display: table!important} .MathJax_SVG_LineBox span {display: table-cell!important; width: 10000em!important; min-width: 0; max-width: none; padding: 0; border: 0; margin: 0} 520 7 8 2 5
Sample Output 1.MathJax_SVG_Display {text-align: center; margin: 1em 0em; position: relative; display: block!important; text-indent: 0; max-width: none; max-height: none; min-width: 0; min-height: 0; width: 100%} .MathJax_SVG .MJX-monospace {font-family: monospace} .MathJax_SVG .MJX-sans-serif {font-family: sans-serif} .MathJax_SVG {display: inline; font-style: normal; font-weight: normal; line-height: normal; font-size: 100%; font-size-adjust: none; text-indent: 0; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0; min-height: 0; border: 0; padding: 0; margin: 0} .MathJax_SVG * {transition: none; -webkit-transition: none; -moz-transition: none; -ms-transition: none; -o-transition: none} .mjx-svg-href {fill: blue; stroke: blue} 2
Explanation 1.MathJax_SVG_Display {text-align: center; margin: 1em 0em; position: relative; display: block!important; text-indent: 0; max-width: none; max-height: none; min-width: 0; min-height: 0; width: 100%} .MathJax_SVG .MJX-monospace {font-family: monospace} .MathJax_SVG .MJX-sans-serif {font-family: sans-serif} .MathJax_SVG {display: inline; font-style: normal; font-weight: normal; line-height: normal; font-size: 100%; font-size-adjust: none; text-indent: 0; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0; min-height: 0; border: 0; padding: 0; margin: 0} .MathJax_SVG * {transition: none; -webkit-transition: none; -moz-transition: none; -ms-transition: none; -o-transition: none} .mjx-svg-href {fill: blue; stroke: blue} .MathJax_SVG_LineBox {display: table!important} .MathJax_SVG_LineBox span {display: table-cell!important; width: 10000em!important; min-width: 0; max-width: none; padding: 0; border: 0; margin: 0}
Lauren buys the house in year at and sells it in year at for a minimal loss of .
Solution in java8
Approach 1.
import java.util.*;
public class Solution {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
TreeSet<Long> values = new TreeSet<>();
values.add(sc.nextLong());
long min = Long.MAX_VALUE;
for (int i = 1; i < n; i++) {
long value = sc.nextLong();
Long higherValue = values.higher(value);
if (higherValue!=null) {
min = Math.min(min, higherValue - value);
}
values.add(value);
}
System.out.println(min);
sc.close();
}
}
Approach 2.
import java.util.*;
public class MinimumLoss
{
public static void main(String[] args)
{
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
long[] arr = new long[n];
for(int i=0;i<n;i++)
{
arr[i] = sc.nextLong();
}
TreeSet<Long> tree = new TreeSet<>();
tree.add(arr[n-1]);
long min = Long.MAX_VALUE;
for(int i=n-2;i>=0;i--)
{
if(tree.lower(arr[i])==null)
{
tree.add(arr[i]);
continue;
}
long val = tree.lower(arr[i]);
min = Math.min(min, arr[i]-val);
tree.add(arr[i]);
}
System.out.println(min);
}
}
Approach 3.
import java.io.*;
import java.util.*;
public class Solution
{
public static void main(String[] args)
{
Scanner sc=new Scanner(System.in);
int n=sc.nextInt();
long[] prices=new long[n];
HashMap<Long,Integer>indices=new HashMap<>();
for(int i=0;i<n;i++)
{
prices[i]=sc.nextLong();
indices.put(prices[i],i);
}
Arrays.sort(prices);
Long minimumLoss=Long.MAX_VALUE;
for(int i=n-1;i>0;i--)
{
if(prices[i]-prices[i-1] < minimumLoss)
{
if(indices.get(prices[i]) < indices.get(prices[i-1]))
{
minimumLoss = prices[i]-prices[i-1];
}
}
}
System.out.println(minimumLoss);
}
}
Solution in python3
Approach 1.
n = int(input())
l = list(map(int, input().split()))
m = 10**17
d = {}
for i in range(len(l)):
d[l[i]] = i
l.sort(reverse = True)
for i in range(len(l)-1):
if d[l[i]] < d[l[i+1]] and l[i]-l[i+1] < m:
m = l[i]-l[i+1]
print(m)
Approach 2.
n=int(input().strip())
numbers=list(map(int,input().strip().split()))
num=list(numbers)
num.sort()
minCost=10**10
for i in range(1,n):
if(num[i]-num[i-1]<minCost) and (numbers.index(num[i])<numbers.index(num[i-1])):
minCost=num[i]-num[i-1]
#return minCost
print(minCost)
Approach 3.
n = int(input().strip())
numbers = list(map(int,input().strip().split()))
nums = list(numbers)
nums.sort()
minCost = 10**10
for i in range(1,n):
if (nums[i]-nums[i-1] < minCost) and (numbers.index(nums[i]) < numbers.index(nums[i-1])):
minCost = nums[i]-nums[i-1]
print(minCost)
Solution in cpp
Approach 1.
#include<iostream>
#include<bits/stdc++.h>
#define ll long long
using namespace std;
int main(){
ll i,n,j;
cin>>n;
ll *a = new ll[n];
vector<pair<ll,ll>>v;
for(i=0;i<n;i++){
cin>>a[i];
v.push_back(make_pair(a[i],i+1));
}
sort(v.begin(),v.end());
ll mindiff = INT_MAX;
for(i=1;i<n;i++){
ll diff = v[i].first - v[i-1].first;
if(v[i-1].second>v[i].second && diff<mindiff){
mindiff = diff;
}
}
cout<<mindiff;
return 0;
}
Approach 2.
#include<cmath>
#include<set>
#include<cstdint>
#include<climits>
#include<tuple>
#include<cstdio>
#include<vector>
#include<iostream>
#include<algorithm>
#include<map>
#include<stack>
#include<queue>
#define long long long
using namespace std;
int main() {
set<long> u;
int n;
cin>>n;
long m = LONG_MAX;
while(n--){
long temp;
cin>>temp;
u.insert(temp);
set<long>::iterator it;
it = u.find(temp);
if(++it != u.end()){
m = min(*it - temp, m);
}
}
cout << m;
}
Approach 3.
#include<iostream>
#include<climits>
#include<algorithm>
#include<vector>
using namespace std;
int main()
{
int n;
cin>>n;
vector<pair<long,int>>prices;
long long min=LONG_MAX;
for(int i=0;i<n;i++)
{
long p;
cin>>p;
prices.push_back(make_pair(p,i));
}
sort(prices.begin(),prices.end());
for(int i=0;i<n-1;i++)
{
if (min >(prices[i+1].first-prices[i].first) &&
prices[i].second >prices[i+1].second )
{
min=prices[i+1].first-prices[i].first;
}
}
cout<<min<<endl;
}