Submission #2183052
Source Code Expand
import java.util.ArrayDeque; import java.util.ArrayList; import java.util.Deque; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Scanner; import java.util.Set; class Main{ public static void main(String[] args){ Scanner scan = new Scanner(System.in); int N = scan.nextInt(); long[] a = new long[N]; long[] b = new long[N]; for(int i=0;i<N;++i)a[i] =scan.nextLong(); for(int i=0;i<N;++i)b[i] =scan.nextLong(); Map<Long,Integer> countmap = new HashMap<>(); long x = 0; for(int i=0;i<N;++i)x^=a[i]; countmap.put(x,1); for(int i=0;i<N;++i){ if(!countmap.containsKey(a[i]))countmap.put(a[i],0); countmap.put(a[i], countmap.get(a[i])+1); } for(int i=0;i<N;++i){ if(!countmap.containsKey(b[i]) || countmap.get(b[i])==0){ System.out.println(-1); return; } countmap.put(b[i], countmap.get(b[i])-1); } Map<Long, Deque<Integer>> bNumToIndex = new HashMap<>(); for(int i=0;i<N;++i){ if(!bNumToIndex.containsKey(b[i]))bNumToIndex.put(b[i],new ArrayDeque<>()); bNumToIndex.get(b[i]).add(i); } int ans =0; boolean used[] = new boolean[N]; int index=0; for(int i=0;i<N;++i)if(a[i]==b[i])used[i]=true; while(true){ int nextIndex=-1; if(bNumToIndex.containsKey(x)){ nextIndex=bNumToIndex.get(x).poll(); while(used[nextIndex] && !bNumToIndex.get(x).isEmpty()){ nextIndex = bNumToIndex.get(x).poll(); } if(bNumToIndex.get(x).isEmpty())bNumToIndex.remove(x); if(used[nextIndex])nextIndex=-1; else used[nextIndex]=true; } if(nextIndex<0){ while(index<N &&used[index])++index; if(index>=N)break; nextIndex=index; } ++ans; x=a[nextIndex]; } System.out.println(ans); } }
Submission Info
Submission Time | |
---|---|
Task | D - XOR Replace |
User | inmir |
Language | Java8 (OpenJDK 1.8.0) |
Score | 0 |
Code Size | 2214 Byte |
Status | WA |
Exec Time | 1057 ms |
Memory | 108316 KB |
Judge Result
Set Name | Sample | All | ||||||
---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 1000 | ||||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt |
All | 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt, 1_12.txt, 1_13.txt, 1_14.txt, 1_15.txt, 1_16.txt, 1_17.txt, 1_18.txt, 1_19.txt, 1_20.txt, 1_21.txt, 1_22.txt, 1_23.txt, 1_24.txt, 1_25.txt, 1_26.txt, 1_27.txt, 1_28.txt, 1_29.txt, 1_30.txt, 1_31.txt, 1_32.txt, 1_33.txt, 1_34.txt, 1_35.txt, 1_36.txt, 1_37.txt, 1_38.txt, 1_39.txt, 1_40.txt, 1_41.txt, 1_42.txt, 1_43.txt, 1_44.txt, 1_45.txt, 1_46.txt, 1_47.txt, 1_48.txt, 1_49.txt, 1_50.txt, 1_51.txt, 1_52.txt, 1_53.txt, 1_54.txt, 1_55.txt, 1_56.txt, 1_57.txt, 1_58.txt, 1_59.txt, 1_60.txt, 1_61.txt, 1_62.txt, 1_63.txt, 1_64.txt, 1_65.txt, 1_66.txt, 1_67.txt, 1_68.txt, 1_69.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
0_00.txt | AC | 95 ms | 21716 KB |
0_01.txt | AC | 94 ms | 16980 KB |
0_02.txt | AC | 91 ms | 19796 KB |
0_03.txt | AC | 93 ms | 19924 KB |
1_00.txt | AC | 95 ms | 19792 KB |
1_01.txt | AC | 95 ms | 21588 KB |
1_02.txt | AC | 94 ms | 21844 KB |
1_03.txt | AC | 92 ms | 18772 KB |
1_04.txt | AC | 94 ms | 21588 KB |
1_05.txt | AC | 92 ms | 18640 KB |
1_06.txt | AC | 93 ms | 21588 KB |
1_07.txt | AC | 681 ms | 100244 KB |
1_08.txt | AC | 678 ms | 95648 KB |
1_09.txt | AC | 715 ms | 108316 KB |
1_10.txt | AC | 624 ms | 62512 KB |
1_11.txt | AC | 611 ms | 67748 KB |
1_12.txt | AC | 604 ms | 92376 KB |
1_13.txt | AC | 647 ms | 72840 KB |
1_14.txt | WA | 691 ms | 85324 KB |
1_15.txt | AC | 629 ms | 71528 KB |
1_16.txt | WA | 676 ms | 93568 KB |
1_17.txt | AC | 670 ms | 89104 KB |
1_18.txt | WA | 665 ms | 89960 KB |
1_19.txt | AC | 627 ms | 71268 KB |
1_20.txt | WA | 694 ms | 87424 KB |
1_21.txt | AC | 686 ms | 77700 KB |
1_22.txt | WA | 694 ms | 86008 KB |
1_23.txt | AC | 633 ms | 93688 KB |
1_24.txt | WA | 1057 ms | 86508 KB |
1_25.txt | AC | 664 ms | 76816 KB |
1_26.txt | WA | 703 ms | 85708 KB |
1_27.txt | AC | 663 ms | 73132 KB |
1_28.txt | WA | 706 ms | 87388 KB |
1_29.txt | AC | 644 ms | 75056 KB |
1_30.txt | WA | 696 ms | 81156 KB |
1_31.txt | AC | 633 ms | 72772 KB |
1_32.txt | WA | 676 ms | 90864 KB |
1_33.txt | AC | 636 ms | 77096 KB |
1_34.txt | WA | 701 ms | 87980 KB |
1_35.txt | AC | 671 ms | 75072 KB |
1_36.txt | WA | 712 ms | 83620 KB |
1_37.txt | AC | 676 ms | 71060 KB |
1_38.txt | WA | 725 ms | 95688 KB |
1_39.txt | AC | 643 ms | 72864 KB |
1_40.txt | WA | 702 ms | 90140 KB |
1_41.txt | AC | 654 ms | 74724 KB |
1_42.txt | WA | 761 ms | 101972 KB |
1_43.txt | AC | 613 ms | 68900 KB |
1_44.txt | WA | 763 ms | 103424 KB |
1_45.txt | AC | 643 ms | 73268 KB |
1_46.txt | WA | 783 ms | 98392 KB |
1_47.txt | AC | 653 ms | 75612 KB |
1_48.txt | WA | 800 ms | 97524 KB |
1_49.txt | AC | 645 ms | 70416 KB |
1_50.txt | WA | 759 ms | 101096 KB |
1_51.txt | AC | 638 ms | 62968 KB |
1_52.txt | WA | 771 ms | 97116 KB |
1_53.txt | AC | 626 ms | 65528 KB |
1_54.txt | WA | 768 ms | 89848 KB |
1_55.txt | AC | 644 ms | 73216 KB |
1_56.txt | WA | 799 ms | 96144 KB |
1_57.txt | AC | 639 ms | 75688 KB |
1_58.txt | WA | 791 ms | 95880 KB |
1_59.txt | AC | 671 ms | 81020 KB |
1_60.txt | WA | 807 ms | 95816 KB |
1_61.txt | AC | 654 ms | 77868 KB |
1_62.txt | WA | 743 ms | 98276 KB |
1_63.txt | AC | 640 ms | 68176 KB |
1_64.txt | WA | 795 ms | 99660 KB |
1_65.txt | AC | 660 ms | 91364 KB |
1_66.txt | WA | 769 ms | 99824 KB |
1_67.txt | AC | 645 ms | 77056 KB |
1_68.txt | WA | 789 ms | 94384 KB |
1_69.txt | AC | 640 ms | 75232 KB |