Submission #1319461
Source Code Expand
#include "bits/stdc++.h" using namespace std; typedef pair<int, int> P; int amida[100000]; int main() { int N, Q; cin >> N >> Q; for (int i = 0; i < N; i++) { amida[i] = i; } vector<P> v; for (int i = 0; i < Q; i++) { int A, B; cin >> A >> B; A--; B--; v.push_back(P(A, B)); } int zero = 0; set<int> ans; for (int i = 0; i < Q; i++) { if (zero > 0) ans.insert(amida[zero - 1]); if (zero < N - 1) ans.insert(amida[zero + 1]); if (amida[v[i].first] == 0) zero = v[i].second; else if (amida[v[i].second] == 0) zero = v[i].first; swap(amida[v[i].first], amida[v[i].second]); } if (zero > 0) ans.insert(amida[zero - 1]); if (zero < N - 1) ans.insert(amida[zero + 1]); cout << ans.size()+1 << endl; }
Submission Info
Submission Time | |
---|---|
Task | G - Magician |
User | Div9851 |
Language | C++14 (GCC 5.4.1) |
Score | 100 |
Code Size | 757 Byte |
Status | AC |
Exec Time | 60 ms |
Memory | 1784 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 100 / 100 | ||||
Status |
|
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Set Name | Test Cases |
---|---|
Sample | sample_01.txt, sample_02.txt |
All | sample_01.txt, sample_02.txt, sample_01.txt, sample_02.txt, subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask1_13.txt, subtask1_14.txt, subtask1_15.txt, subtask1_16.txt, subtask1_17.txt, subtask1_18.txt, subtask1_19.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
sample_01.txt | AC | 1 ms | 256 KB |
sample_02.txt | AC | 1 ms | 256 KB |
subtask1_01.txt | AC | 58 ms | 1784 KB |
subtask1_02.txt | AC | 58 ms | 1784 KB |
subtask1_03.txt | AC | 58 ms | 1784 KB |
subtask1_04.txt | AC | 59 ms | 1784 KB |
subtask1_05.txt | AC | 58 ms | 1784 KB |
subtask1_06.txt | AC | 58 ms | 1784 KB |
subtask1_07.txt | AC | 59 ms | 1784 KB |
subtask1_08.txt | AC | 59 ms | 1784 KB |
subtask1_09.txt | AC | 59 ms | 1784 KB |
subtask1_10.txt | AC | 59 ms | 1784 KB |
subtask1_11.txt | AC | 59 ms | 1784 KB |
subtask1_12.txt | AC | 60 ms | 1784 KB |
subtask1_13.txt | AC | 59 ms | 1784 KB |
subtask1_14.txt | AC | 59 ms | 1784 KB |
subtask1_15.txt | AC | 59 ms | 1784 KB |
subtask1_16.txt | AC | 59 ms | 1784 KB |
subtask1_17.txt | AC | 59 ms | 1784 KB |
subtask1_18.txt | AC | 59 ms | 1784 KB |
subtask1_19.txt | AC | 58 ms | 1784 KB |