first commit

2022-12-15 23:51:04 +07:00
commit 87d51fb251
292 changed files with 12623 additions and 0 deletions
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+import java.io.*;
+import java.util.*;
+
+public class Main {
+
+    static class HangTu{
+        int base, exp;
+        public HangTu(int x, int y){
+            base = x;
+            exp = y;
+        }
+        public HangTu(String s){
+            String[] a = s.replace("*x^", " ").split("\\s+");
+            base = Integer.parseInt(a[0]);
+            exp = Integer.parseInt(a[1]);
+        }
+        @Override
+        public String toString(){
+            return String.format("%d*x^%d", base, exp);
+        }
+    }
+
+    static class DaThuc{
+        ArrayList<HangTu> a;
+
+        public DaThuc(String s){
+            a = new ArrayList<>();
+            String[] arr = s.replace("+", " ").split("\\s+");
+            for(int i=0;i<arr.length;i++){
+                a.add(new HangTu(arr[i]));
+            }
+        }
+
+        public DaThuc(){
+            a = new ArrayList<>();
+        }
+
+        public DaThuc cong(DaThuc b){
+            DaThuc r = new DaThuc();
+            int i = 0, u = 0;
+            while(i<a.size() || u<b.a.size()){
+                if(i==a.size() || a.get(i).exp < b.a.get(u).exp){
+                    r.a.add(new HangTu(b.a.get(u).toString()));
+                    u++;
+                }else if(u==b.a.size() || a.get(i).exp > b.a.get(u).exp){
+                    r.a.add(new HangTu(a.get(i).toString()));
+                    i++;
+                }else{
+                    HangTu x = new HangTu(a.get(i).base + b.a.get(u).base, a.get(i).exp);
+                    if(x.base != 0) r.a.add(x);
+                    i++;
+                    u++;
+                }
+            }
+            return r;
+        }
+
+        @Override
+        public String toString(){
+            String[] arr = new String[a.size()];
+            for(int i=0;i<arr.length;i++) arr[i] = a.get(i).toString();
+            return String.join(" + ", arr);
+        }
+    }
+    public static void main(String[] args) {
+        Scanner sc = new Scanner(System.in);
+        int t = Integer.parseInt(sc.nextLine());
+        while(t-->0){
+            DaThuc p = new DaThuc(sc.nextLine());
+            DaThuc q = new DaThuc(sc.nextLine());
+            DaThuc r = p.cong(q);
+            System.out.println(r);
+        }
+    }
+    public static void main902701(String[] args) {
+        Scanner sc = new Scanner(System.in);
+        int t = Integer.parseInt(sc.nextLine());
+        while(t-->0){
+            DaThuc p = new DaThuc(sc.nextLine());
+            DaThuc q = new DaThuc(sc.nextLine());
+            DaThuc r = p.cong(q);
+            System.out.println(r);
+        }
+    }
+}