Problem Statement:
You have been given a gold prices for n days. You Need to find out max benefit in best time to buy and sell.
import java.util.*;
class Demo
{
public static void main(String s[])
{
Scanner sc = new Scanner(System.in);
int day[]=new int[100];
int i,j,res,a=0,b=0,fres=0;
System.out.println("\nEnter no of days: ");
int n=sc.nextInt();
System.out.print("\nEnter "+n+" gold prices: ");
for(i=0;i<n;i++)
{
day[i]=sc.nextInt();
}
for(i=0;i<n;i++)
{
for(j=i;j<n;j++)
{
res=day[j]-day[i];
System.out.print("Purchase Day: "+(i+1)+" Sell Day: "+(j+1)+" Profit: "+res);
if(res>=fres)
{
a=i;
b=j;
fres=res;
}
System.out.println();
}
}
System.out.print("\nBest Purchase:\nPurchase Day: "+(a+1)+" Sell Day: "+(b+1)+" Profit: "+fres);
}
}
You have been given a gold prices for n days. You Need to find out max benefit in best time to buy and sell.
import java.util.*;
class Demo
{
public static void main(String s[])
{
Scanner sc = new Scanner(System.in);
int day[]=new int[100];
int i,j,res,a=0,b=0,fres=0;
System.out.println("\nEnter no of days: ");
int n=sc.nextInt();
System.out.print("\nEnter "+n+" gold prices: ");
for(i=0;i<n;i++)
{
day[i]=sc.nextInt();
}
for(i=0;i<n;i++)
{
for(j=i;j<n;j++)
{
res=day[j]-day[i];
System.out.print("Purchase Day: "+(i+1)+" Sell Day: "+(j+1)+" Profit: "+res);
if(res>=fres)
{
a=i;
b=j;
fres=res;
}
System.out.println();
}
}
System.out.print("\nBest Purchase:\nPurchase Day: "+(a+1)+" Sell Day: "+(b+1)+" Profit: "+fres);
}
}
Output:
Enter no of days:
5
Enter 5 gold prices:
100
60
400
500
30
Purchase Day: 1 Sell Day: 1 Profit: 0
Purchase Day: 1 Sell Day: 2 Profit: -40
Purchase Day: 1 Sell Day: 3 Profit: 300
Purchase Day: 1 Sell Day: 4 Profit: 400
Purchase Day: 1 Sell Day: 5 Profit: -70
Purchase Day: 2 Sell Day: 2 Profit: 0
Purchase Day: 2 Sell Day: 3 Profit: 340
Purchase Day: 2 Sell Day: 4 Profit: 440
Purchase Day: 2 Sell Day: 5 Profit: -30
Purchase Day: 3 Sell Day: 3 Profit: 0
Purchase Day: 3 Sell Day: 4 Profit: 100
Purchase Day: 3 Sell Day: 5 Profit: -370
Purchase Day: 4 Sell Day: 4 Profit: 0
Purchase Day: 4 Sell Day: 5 Profit: -470
Purchase Day: 5 Sell Day: 5 Profit: 0
Best Purchase:
Purchase Day: 2 Sell Day: 4 Profit: 440
Nice one Soham
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