Submission #2840392
Source Code Expand
#include <bits/stdc++.h> using namespace std; const int N = 100010; int n; int A[N], B[N], cnt = 0; map<int, vector<int>> pos; void maintain(int x) { if (!pos.count(x)) return; while (!pos[x].empty()) { int p = pos[x].back(); if (A[p] == B[p]) pos[x].pop_back(); else break; } if (pos[x].empty()) pos.erase(x); } void doswap(int i) { ++cnt; swap(A[i], A[n]); maintain(A[i]); maintain(A[n]); } int main() { printf("-1\n"); return 0; scanf("%d", &n); for (int i = 0; i < n; ++i) { scanf("%d", &A[i]); A[n] ^= A[i]; } for (int i = 0; i < n; ++i) { scanf("%d", &B[i]); B[n] ^= B[i]; pos[B[i]].push_back(i); } int iter = 1e6; while (!pos.empty()) { if (--iter == 0) { cnt = -1; break; } maintain(A[n]); /*for (int i = 0; i <= n; ++i) printf("%d ", A[i]); printf("\n"); for (auto v : pos) { printf("pos of %d:", v.first); for (auto x : v.second) printf(" %d", x); printf("\n"); }*/ if (pos.count(A[n])) { doswap(pos[A[n]].back()); } else { int x = pos.begin()->first; maintain(x); if (pos.count(x)) doswap(pos[x].back()); } } printf("%d\n", cnt); return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - XOR Replace |
User | aquablitz11 |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 1545 Byte |
Status | WA |
Exec Time | 1 ms |
Memory | 256 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:37:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ ./Main.cpp:39:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &A[i]); ^ ./Main.cpp:43:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &B[i]); ^
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 | WA | 1 ms | 256 KB |
0_01.txt | WA | 1 ms | 256 KB |
0_02.txt | AC | 1 ms | 256 KB |
0_03.txt | WA | 1 ms | 256 KB |
1_00.txt | WA | 1 ms | 256 KB |
1_01.txt | AC | 1 ms | 256 KB |
1_02.txt | AC | 1 ms | 256 KB |
1_03.txt | WA | 1 ms | 256 KB |
1_04.txt | WA | 1 ms | 256 KB |
1_05.txt | WA | 1 ms | 256 KB |
1_06.txt | WA | 1 ms | 256 KB |
1_07.txt | WA | 1 ms | 256 KB |
1_08.txt | WA | 1 ms | 256 KB |
1_09.txt | WA | 1 ms | 256 KB |
1_10.txt | WA | 1 ms | 256 KB |
1_11.txt | AC | 1 ms | 256 KB |
1_12.txt | WA | 1 ms | 256 KB |
1_13.txt | WA | 1 ms | 256 KB |
1_14.txt | WA | 1 ms | 256 KB |
1_15.txt | AC | 1 ms | 256 KB |
1_16.txt | WA | 1 ms | 256 KB |
1_17.txt | AC | 1 ms | 256 KB |
1_18.txt | WA | 1 ms | 256 KB |
1_19.txt | AC | 1 ms | 256 KB |
1_20.txt | WA | 1 ms | 256 KB |
1_21.txt | AC | 1 ms | 256 KB |
1_22.txt | WA | 1 ms | 256 KB |
1_23.txt | AC | 1 ms | 256 KB |
1_24.txt | WA | 1 ms | 256 KB |
1_25.txt | AC | 1 ms | 256 KB |
1_26.txt | WA | 1 ms | 256 KB |
1_27.txt | AC | 1 ms | 256 KB |
1_28.txt | WA | 1 ms | 256 KB |
1_29.txt | AC | 1 ms | 256 KB |
1_30.txt | WA | 1 ms | 256 KB |
1_31.txt | AC | 1 ms | 256 KB |
1_32.txt | WA | 1 ms | 256 KB |
1_33.txt | AC | 1 ms | 256 KB |
1_34.txt | WA | 1 ms | 256 KB |
1_35.txt | AC | 1 ms | 256 KB |
1_36.txt | WA | 1 ms | 256 KB |
1_37.txt | AC | 1 ms | 256 KB |
1_38.txt | WA | 1 ms | 256 KB |
1_39.txt | AC | 1 ms | 256 KB |
1_40.txt | WA | 1 ms | 256 KB |
1_41.txt | AC | 1 ms | 256 KB |
1_42.txt | WA | 1 ms | 256 KB |
1_43.txt | AC | 1 ms | 256 KB |
1_44.txt | WA | 1 ms | 256 KB |
1_45.txt | AC | 1 ms | 256 KB |
1_46.txt | WA | 1 ms | 256 KB |
1_47.txt | AC | 1 ms | 256 KB |
1_48.txt | WA | 1 ms | 256 KB |
1_49.txt | AC | 1 ms | 256 KB |
1_50.txt | WA | 1 ms | 256 KB |
1_51.txt | AC | 1 ms | 256 KB |
1_52.txt | WA | 1 ms | 256 KB |
1_53.txt | AC | 1 ms | 256 KB |
1_54.txt | WA | 1 ms | 256 KB |
1_55.txt | AC | 1 ms | 256 KB |
1_56.txt | WA | 1 ms | 256 KB |
1_57.txt | AC | 1 ms | 256 KB |
1_58.txt | WA | 1 ms | 256 KB |
1_59.txt | AC | 1 ms | 256 KB |
1_60.txt | WA | 1 ms | 256 KB |
1_61.txt | AC | 1 ms | 256 KB |
1_62.txt | WA | 1 ms | 256 KB |
1_63.txt | AC | 1 ms | 256 KB |
1_64.txt | WA | 1 ms | 256 KB |
1_65.txt | AC | 1 ms | 256 KB |
1_66.txt | WA | 1 ms | 256 KB |
1_67.txt | AC | 1 ms | 256 KB |
1_68.txt | WA | 1 ms | 256 KB |
1_69.txt | AC | 1 ms | 256 KB |