Submission #2182983
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; 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; } if(nextIndex<0){ while(index<N &&(used[index] || a[index]==b[index]))++index; if(index>=N)break; nextIndex=index; ++ans; } used[nextIndex]=true; if(x!=a[nextIndex]){ ++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 | 2258 Byte |
Status | WA |
Exec Time | 981 ms |
Memory | 107724 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 | 94 ms | 21844 KB |
0_01.txt | AC | 95 ms | 21712 KB |
0_02.txt | AC | 94 ms | 21204 KB |
0_03.txt | AC | 94 ms | 21844 KB |
1_00.txt | AC | 95 ms | 20564 KB |
1_01.txt | AC | 96 ms | 19796 KB |
1_02.txt | AC | 95 ms | 21588 KB |
1_03.txt | AC | 94 ms | 20052 KB |
1_04.txt | AC | 94 ms | 19668 KB |
1_05.txt | AC | 95 ms | 17364 KB |
1_06.txt | AC | 94 ms | 21844 KB |
1_07.txt | AC | 670 ms | 105852 KB |
1_08.txt | AC | 683 ms | 100204 KB |
1_09.txt | AC | 714 ms | 104808 KB |
1_10.txt | AC | 645 ms | 70684 KB |
1_11.txt | AC | 627 ms | 65124 KB |
1_12.txt | AC | 622 ms | 66352 KB |
1_13.txt | AC | 669 ms | 76524 KB |
1_14.txt | WA | 694 ms | 87320 KB |
1_15.txt | AC | 626 ms | 73988 KB |
1_16.txt | WA | 643 ms | 88472 KB |
1_17.txt | AC | 641 ms | 75040 KB |
1_18.txt | WA | 700 ms | 88156 KB |
1_19.txt | AC | 637 ms | 69612 KB |
1_20.txt | WA | 693 ms | 92292 KB |
1_21.txt | AC | 687 ms | 76884 KB |
1_22.txt | WA | 680 ms | 89152 KB |
1_23.txt | AC | 596 ms | 68152 KB |
1_24.txt | WA | 679 ms | 85584 KB |
1_25.txt | AC | 981 ms | 75516 KB |
1_26.txt | WA | 694 ms | 83380 KB |
1_27.txt | AC | 615 ms | 71820 KB |
1_28.txt | WA | 711 ms | 92616 KB |
1_29.txt | AC | 648 ms | 77976 KB |
1_30.txt | WA | 653 ms | 79088 KB |
1_31.txt | AC | 632 ms | 63964 KB |
1_32.txt | WA | 719 ms | 94452 KB |
1_33.txt | AC | 647 ms | 75492 KB |
1_34.txt | WA | 715 ms | 87532 KB |
1_35.txt | AC | 644 ms | 73364 KB |
1_36.txt | WA | 739 ms | 85740 KB |
1_37.txt | AC | 648 ms | 72404 KB |
1_38.txt | WA | 744 ms | 95468 KB |
1_39.txt | AC | 625 ms | 66704 KB |
1_40.txt | WA | 745 ms | 95620 KB |
1_41.txt | AC | 670 ms | 95944 KB |
1_42.txt | WA | 762 ms | 107724 KB |
1_43.txt | AC | 633 ms | 73092 KB |
1_44.txt | WA | 787 ms | 96096 KB |
1_45.txt | AC | 645 ms | 71964 KB |
1_46.txt | WA | 774 ms | 101900 KB |
1_47.txt | AC | 679 ms | 77556 KB |
1_48.txt | WA | 790 ms | 101944 KB |
1_49.txt | AC | 634 ms | 69524 KB |
1_50.txt | WA | 779 ms | 98200 KB |
1_51.txt | AC | 626 ms | 68940 KB |
1_52.txt | WA | 792 ms | 100084 KB |
1_53.txt | AC | 641 ms | 66908 KB |
1_54.txt | WA | 787 ms | 99688 KB |
1_55.txt | AC | 672 ms | 73420 KB |
1_56.txt | WA | 793 ms | 93912 KB |
1_57.txt | AC | 668 ms | 75112 KB |
1_58.txt | WA | 807 ms | 98252 KB |
1_59.txt | AC | 644 ms | 75112 KB |
1_60.txt | WA | 788 ms | 97868 KB |
1_61.txt | AC | 634 ms | 75484 KB |
1_62.txt | WA | 767 ms | 98840 KB |
1_63.txt | AC | 699 ms | 73076 KB |
1_64.txt | WA | 779 ms | 90304 KB |
1_65.txt | AC | 637 ms | 71344 KB |
1_66.txt | WA | 784 ms | 99964 KB |
1_67.txt | AC | 617 ms | 71144 KB |
1_68.txt | WA | 802 ms | 97400 KB |
1_69.txt | AC | 632 ms | 73608 KB |