Submission #2183010
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; } if(nextIndex<0){ while(index<N &&used[index])++index; if(index>=N)break; nextIndex=index; ++ans; } used[nextIndex]=true; ++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 | 2233 Byte |
Status | WA |
Exec Time | 1052 ms |
Memory | 108172 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 | 21588 KB |
0_01.txt | AC | 93 ms | 20564 KB |
0_02.txt | AC | 94 ms | 19924 KB |
0_03.txt | AC | 94 ms | 19412 KB |
1_00.txt | AC | 97 ms | 21716 KB |
1_01.txt | AC | 93 ms | 19412 KB |
1_02.txt | AC | 92 ms | 20692 KB |
1_03.txt | AC | 93 ms | 19924 KB |
1_04.txt | AC | 94 ms | 21332 KB |
1_05.txt | AC | 91 ms | 21716 KB |
1_06.txt | AC | 93 ms | 19924 KB |
1_07.txt | AC | 665 ms | 105076 KB |
1_08.txt | AC | 707 ms | 106296 KB |
1_09.txt | AC | 709 ms | 106456 KB |
1_10.txt | AC | 671 ms | 73432 KB |
1_11.txt | AC | 619 ms | 64024 KB |
1_12.txt | AC | 677 ms | 68240 KB |
1_13.txt | AC | 639 ms | 71468 KB |
1_14.txt | WA | 716 ms | 87952 KB |
1_15.txt | AC | 595 ms | 69520 KB |
1_16.txt | WA | 708 ms | 89868 KB |
1_17.txt | AC | 643 ms | 89196 KB |
1_18.txt | WA | 661 ms | 83356 KB |
1_19.txt | AC | 636 ms | 75116 KB |
1_20.txt | WA | 689 ms | 88792 KB |
1_21.txt | AC | 647 ms | 75684 KB |
1_22.txt | WA | 674 ms | 86356 KB |
1_23.txt | AC | 616 ms | 69496 KB |
1_24.txt | WA | 701 ms | 90600 KB |
1_25.txt | AC | 639 ms | 75272 KB |
1_26.txt | WA | 689 ms | 81112 KB |
1_27.txt | AC | 1052 ms | 71312 KB |
1_28.txt | WA | 721 ms | 85380 KB |
1_29.txt | AC | 645 ms | 94044 KB |
1_30.txt | WA | 673 ms | 81024 KB |
1_31.txt | AC | 634 ms | 92096 KB |
1_32.txt | WA | 724 ms | 86144 KB |
1_33.txt | AC | 651 ms | 73092 KB |
1_34.txt | WA | 717 ms | 85008 KB |
1_35.txt | AC | 663 ms | 70640 KB |
1_36.txt | WA | 699 ms | 81024 KB |
1_37.txt | AC | 649 ms | 72984 KB |
1_38.txt | WA | 775 ms | 96228 KB |
1_39.txt | AC | 638 ms | 72624 KB |
1_40.txt | WA | 765 ms | 92212 KB |
1_41.txt | AC | 692 ms | 90032 KB |
1_42.txt | WA | 782 ms | 101528 KB |
1_43.txt | AC | 640 ms | 72112 KB |
1_44.txt | WA | 829 ms | 97644 KB |
1_45.txt | AC | 679 ms | 72124 KB |
1_46.txt | WA | 793 ms | 98392 KB |
1_47.txt | AC | 619 ms | 70520 KB |
1_48.txt | WA | 758 ms | 104860 KB |
1_49.txt | AC | 606 ms | 67452 KB |
1_50.txt | WA | 774 ms | 105760 KB |
1_51.txt | AC | 623 ms | 67320 KB |
1_52.txt | WA | 779 ms | 101780 KB |
1_53.txt | AC | 624 ms | 65172 KB |
1_54.txt | WA | 801 ms | 99964 KB |
1_55.txt | AC | 670 ms | 92132 KB |
1_56.txt | WA | 792 ms | 97808 KB |
1_57.txt | AC | 678 ms | 76544 KB |
1_58.txt | WA | 784 ms | 95860 KB |
1_59.txt | AC | 668 ms | 79868 KB |
1_60.txt | WA | 810 ms | 97836 KB |
1_61.txt | AC | 674 ms | 74580 KB |
1_62.txt | WA | 792 ms | 95384 KB |
1_63.txt | AC | 633 ms | 73084 KB |
1_64.txt | WA | 791 ms | 108172 KB |
1_65.txt | AC | 665 ms | 72868 KB |
1_66.txt | WA | 770 ms | 104292 KB |
1_67.txt | AC | 642 ms | 72356 KB |
1_68.txt | WA | 794 ms | 100272 KB |
1_69.txt | AC | 634 ms | 70724 KB |