pat1009

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package AdvancedLevelPractice;import java.util.Iterator;import java.util.Map;import java.util.Scanner;import java.util.TreeMap;public class pat1009{public static void main(String[] args) {// TODO Auto-generated method stubScanner scanner = new Scanner(System.in);int n1 = scanner.nextInt();int[] exp = new int[n1];double[] coff = new double[n1];for(int i = 0; i < n1; i++){exp[i] = scanner.nextInt();coff[i] = scanner.nextDouble();}int n2 = scanner.nextInt();Map results = new TreeMap().descendingMap();int exp1, exp2;double coff1, coff2;int count = 0;for(int i = 0; i < n2; i++){exp1 = scanner.nextInt();coff1 = scanner.nextDouble();for(int j = 0; j < n1; j++){exp2 = exp1 + exp[j];coff2 = coff1 * coff[j];if(results.containsKey(exp2)){coff2 += Double.parseDouble(String.valueOf(results.get(exp2)));results.remove(exp2);count--;}if(!String.format("%.1f",coff2).contains("0.0")){count++;results.put(exp2, coff2);}}}Iterator iterator = results.keySet().iterator();System.out.print(count);while (iterator.hasNext()) {Object key = iterator.next();System.out.print(" "+ String.valueOf(key)+" "+String.format("%.1f", results.get(key)));}scanner.close();}}
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