Create Stock_Buy_Sell.java

Author: 17tanya

Arrays/Stock_Buy_Sell.java

@@ -0,0 +1,50 @@
+import java.util.*;
+import java.lang.*;
+import java.io.*;
+class GFG{
+	public static void main (String[] args){
+	 //code
+	    Scanner s = new Scanner(System.in);
+	    int t = s.nextInt();
+	    
+	    while(t-- > 0){
+	        int n = s.nextInt();
+	        int arr[] = new int[n];
+	        
+	        for(int i = 0 ; i < n ; i++){
+	            arr[i] = s.nextInt();
+	        }
+	        
+	        List<Integer> buy = new ArrayList<>();
+	        List<Integer> sell = new ArrayList<>();
+	        
+	        int stocks = 0;
+	        int i = 0;
+	        while(i <= n-2){ //we 
+	            while(i < n-1 && arr[i] >= arr[i+1]){
+	                i++;
+	            }
+	            
+	            if(i == n-1) break;
+	            
+	            buy.add(i++);
+	            
+	            while(i < n && arr[i] >= arr[i-1]){
+	                i++;
+	            }
+	            
+	            sell.add(i-1);
+	            
+	            stocks++;
+	        }
+	        
+	        if(stocks == 0) System.out.println("No Profit");
+	        else{
+	            for(i = 0 ; i < buy.size() ; i++){
+	                System.out.print("(" + buy.get(i) + " " + sell.get(i) + ") ");
+	            }
+	            System.out.println();
+	        }
+	    }
+	 }
+}