Submission #1570990
Source Code Expand
#include <functional> #include <algorithm> #include <iostream> #include <memory.h> #include <sstream> #include <fstream> #include <iomanip> #include <assert.h> #include <bitset> #include <string> #include <cstdio> #include <math.h> #include <complex> #include <vector> #include <queue> #include <stack> #include <cmath> #include <ctime> #include <set> #include <bitset> #include <map> using namespace std; #define int64 long long #define mp make_pair #define ull unsigned long long const int N = 510; const int M = 100000; const int64 INF = 1e18; int n, cntIn, cntOut; int a[N], b[N], degIn[N], degOut[N]; pair <int, int> p[N]; vector <int> g[N]; bool used[N]; void compress() { for (int i = 0; i <= n; i++) p[i] = mp(a[i], i); for (int i = n + 1; i <= 2 * n; i++) p[i] = mp(b[i - n], i); sort(p, p + 2 * n + 1); int val = 1; for (int i = 0; i <= 2 * n; i++) { if (i > 1 && p[i].first != p[i - 1].first) val++; if (p[i].second <= n) a[p[i].second] = val; else b[p[i].second - n] = val; } } void dfs(int v) { used[v] = true; if (degIn[v] > degOut[v]) cntIn++; else if (degIn[v] < degOut[v]) cntOut++; for (int i = 0; i < g[v].size(); i++) if (!used[g[v][i]]) { dfs(g[v][i]); } } int main() { #ifdef _DEBUG freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); #endif scanf("%d", &n); for (int i = 1; i <= n; i++) scanf("%d", &a[i]); for (int i = 1; i <= n; i++) scanf("%d", &b[i]); int x = 0; for (int i = 1; i <= n; i++) x ^= a[i]; a[0] = x; compress(); int ans = 0; for (int i = 1; i <= n; i++) { if (a[i] != b[i]) { ans++; degOut[b[i]]++; degIn[a[i]]++; g[b[i]].push_back(a[i]); g[a[i]].push_back(b[i]); } } memset(used, false, sizeof(used)); bool flag = false; for (int i = 0; i <= 2 * n; i++) { if (!used[i]) { if (g[i].size() == 0) continue; cntIn = 0; cntOut = 0; dfs(i); if (!flag && used[i]) { flag = true; bool correct = (cntIn == cntOut || (cntIn == 1 && cntOut == 1 && degOut[x] > degIn[x])); if (!correct) { ans = -1; break; } } else { if (cntIn != 0 || cntOut != 0) { ans = -1; break; } else { ans++; } } } } for (int i = 0; i <= 2 * n; i++) { if (abs(degIn[i] - degOut[i]) > 1) { ans = -1; break; } } cout << ans; return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - XOR Replace |
User | AleksBalobanov |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 2488 Byte |
Status | RE |
Exec Time | 97 ms |
Memory | 256 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:70:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ ./Main.cpp:71:49: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for (int i = 1; i <= n; i++) scanf("%d", &a[i]); ^ ./Main.cpp:72:49: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for (int i = 1; i <= n; i++) scanf("%d", &b[i]); ^
Judge Result
Set Name | Sample | All | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 1000 | ||||||||
Status |
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|
Set Name | Test Cases |
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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 | 1 ms | 256 KB |
0_01.txt | AC | 1 ms | 256 KB |
0_02.txt | AC | 1 ms | 256 KB |
0_03.txt | AC | 1 ms | 256 KB |
1_00.txt | AC | 1 ms | 256 KB |
1_01.txt | WA | 1 ms | 256 KB |
1_02.txt | AC | 1 ms | 256 KB |
1_03.txt | AC | 1 ms | 256 KB |
1_04.txt | AC | 1 ms | 256 KB |
1_05.txt | WA | 1 ms | 256 KB |
1_06.txt | AC | 1 ms | 256 KB |
1_07.txt | RE | 95 ms | 256 KB |
1_08.txt | RE | 95 ms | 256 KB |
1_09.txt | RE | 94 ms | 256 KB |
1_10.txt | WA | 1 ms | 256 KB |
1_11.txt | WA | 1 ms | 256 KB |
1_12.txt | WA | 1 ms | 256 KB |
1_13.txt | WA | 1 ms | 256 KB |
1_14.txt | RE | 94 ms | 256 KB |
1_15.txt | WA | 1 ms | 256 KB |
1_16.txt | RE | 94 ms | 256 KB |
1_17.txt | RE | 95 ms | 256 KB |
1_18.txt | RE | 95 ms | 256 KB |
1_19.txt | RE | 95 ms | 256 KB |
1_20.txt | RE | 94 ms | 256 KB |
1_21.txt | RE | 95 ms | 256 KB |
1_22.txt | RE | 94 ms | 256 KB |
1_23.txt | RE | 95 ms | 256 KB |
1_24.txt | RE | 95 ms | 256 KB |
1_25.txt | RE | 95 ms | 256 KB |
1_26.txt | RE | 95 ms | 256 KB |
1_27.txt | RE | 95 ms | 256 KB |
1_28.txt | RE | 94 ms | 256 KB |
1_29.txt | RE | 95 ms | 256 KB |
1_30.txt | RE | 95 ms | 256 KB |
1_31.txt | RE | 95 ms | 256 KB |
1_32.txt | RE | 94 ms | 256 KB |
1_33.txt | RE | 95 ms | 256 KB |
1_34.txt | RE | 95 ms | 256 KB |
1_35.txt | RE | 95 ms | 256 KB |
1_36.txt | RE | 95 ms | 256 KB |
1_37.txt | RE | 94 ms | 256 KB |
1_38.txt | RE | 94 ms | 256 KB |
1_39.txt | RE | 95 ms | 256 KB |
1_40.txt | RE | 95 ms | 256 KB |
1_41.txt | RE | 94 ms | 256 KB |
1_42.txt | RE | 94 ms | 256 KB |
1_43.txt | RE | 94 ms | 256 KB |
1_44.txt | RE | 95 ms | 256 KB |
1_45.txt | RE | 95 ms | 256 KB |
1_46.txt | RE | 94 ms | 256 KB |
1_47.txt | RE | 97 ms | 256 KB |
1_48.txt | RE | 95 ms | 256 KB |
1_49.txt | RE | 94 ms | 256 KB |
1_50.txt | RE | 94 ms | 256 KB |
1_51.txt | RE | 95 ms | 256 KB |
1_52.txt | RE | 94 ms | 256 KB |
1_53.txt | RE | 94 ms | 256 KB |
1_54.txt | RE | 95 ms | 256 KB |
1_55.txt | RE | 95 ms | 256 KB |
1_56.txt | RE | 95 ms | 256 KB |
1_57.txt | RE | 94 ms | 256 KB |
1_58.txt | RE | 95 ms | 256 KB |
1_59.txt | RE | 94 ms | 256 KB |
1_60.txt | RE | 96 ms | 256 KB |
1_61.txt | RE | 95 ms | 256 KB |
1_62.txt | RE | 96 ms | 256 KB |
1_63.txt | RE | 94 ms | 256 KB |
1_64.txt | RE | 95 ms | 256 KB |
1_65.txt | RE | 95 ms | 256 KB |
1_66.txt | RE | 95 ms | 256 KB |
1_67.txt | RE | 95 ms | 256 KB |
1_68.txt | RE | 95 ms | 256 KB |
1_69.txt | RE | 95 ms | 256 KB |