Submission #1609497
Source Code Expand
#include<iostream> #include<iomanip> #include<math.h> #include<vector> #include<algorithm> #include<set> #include<map> #include<queue> #include<stack> #include<string> #define INF 1000000000ll #define MOD 1000000007ll #define EPS 1e-10 #define REP(i,m) for(long long i=0; i<m; ++i) #define FOR(i,n,m) for(long long i=n; i<m; ++i) #define DUMP(n,a) for(long long dump=0; dump<n; ++dump) { cout<<a[dump]; if(dump!=n-1) cout<<" "; else cout<<endl; } #define ALL(v) v.begin(),v.end() #define pb push_back using namespace std; typedef long long ll; typedef pair<ll, ll> P; typedef long double ld; int main() { cin.tie(0); ios::sync_with_stdio(false); set<ll> s; int n; cin>>n; REP(i,n) { ll a; cin>>a; if(s.count(a)!=0) s.erase(a); else s.insert(a); } cout<<s.size()<<endl; }
Submission Info
Submission Time | |
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Task | C - Write and Erase |
User | gazelle |
Language | C++14 (GCC 5.4.1) |
Score | 300 |
Code Size | 825 Byte |
Status | AC |
Exec Time | 50 ms |
Memory | 4992 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 300 / 300 | ||||
Status |
|
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Set Name | Test Cases |
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Sample | sample_01.txt, sample_02.txt, sample_03.txt |
All | 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, sample_01.txt, sample_02.txt, sample_03.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
01.txt | AC | 13 ms | 256 KB |
02.txt | AC | 13 ms | 256 KB |
03.txt | AC | 50 ms | 4992 KB |
04.txt | AC | 16 ms | 256 KB |
05.txt | AC | 44 ms | 2048 KB |
06.txt | AC | 23 ms | 256 KB |
07.txt | AC | 10 ms | 256 KB |
08.txt | AC | 27 ms | 256 KB |
sample_01.txt | AC | 1 ms | 256 KB |
sample_02.txt | AC | 1 ms | 256 KB |
sample_03.txt | AC | 1 ms | 256 KB |