Submission #3598930
Source Code Expand
#include <bits/stdc++.h> using namespace std; typedef long long ll; #define P pair<ll,ll> #define FOR(I,A,B) for(int I = (A); I < (B); ++I) #define FORR(I,A,B) for(int I = ((B)-1); I >= (A); --I) #define TO(x,t,f) ((x)?(t):(f)) #define SORT(x) (sort(x.begin(),x.end())) // 0 2 2 3 4 5 8 9 #define REV(x) (reverse(x.begin(),x.end())) //reverse ll gcd(ll a,ll b){if(a<b)swap(a,b);if(a%b==0)return b;return gcd(b,a%b);} ll lcm(ll a,ll b){ll c=gcd(a,b);return ((a/c)*(b/c)*c);}//saisyo kobaisu #define NEXTP(x) next_permutation(x.begin(),x.end()) const ll INF=1e18+7; const ll MOD=1e9+7; #define pri(a) cout << (a) << endl int main(){ ios::sync_with_stdio(false); cin.tie(0); //ifstream in("input.txt"); //cin.rdbuf(in.rdbuf()); ll n; cin >> n; set<ll> se; FOR(i,0,n){ ll a; cin >> a; if(se.count(a))se.erase(a); else se.insert(a); } cout << se.size() << endl; }
Submission Info
Submission Time | |
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Task | C - Write and Erase |
User | kenta2997 |
Language | C++14 (GCC 5.4.1) |
Score | 300 |
Code Size | 910 Byte |
Status | AC |
Exec Time | 62 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 | 14 ms | 384 KB |
02.txt | AC | 13 ms | 256 KB |
03.txt | AC | 62 ms | 4992 KB |
04.txt | AC | 16 ms | 256 KB |
05.txt | AC | 47 ms | 2048 KB |
06.txt | AC | 24 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 |