Submission #4635227
Source Code Expand
#include <bits/stdc++.h>
using namespace std;
using VS = vector<string>; using LL = long long;
using VI = vector<int>; using VVI = vector<VI>;
using PII = pair<int, int>; using PLL = pair<LL, LL>;
using VL = vector<LL>; using VVL = vector<VL>;
#define ALL(a) begin((a)),end((a))
#define RALL(a) (a).rbegin(), (a).rend()
#define SZ(a) int((a).size())
#define SORT(c) sort(ALL((c)))
#define RSORT(c) sort(RALL((c)))
#define UNIQ(c) (c).erase(unique(ALL((c))), end((c)))
#define FOR(i, s, e) for (int(i) = (s); (i) < (e); (i)++)
#define FORR(i, s, e) for (int(i) = (s); (i) > (e); (i)--)
//#pragma GCC optimize ("-O3")
#ifdef YANG33
#include "mydebug.hpp"
#else
#define DD(x)
#endif
const int INF = 1e9; const LL LINF = 1e16;
const LL MOD = 1000000007; const double PI = acos(-1.0);
int DX[8] = { 0, 0, 1, -1, 1, 1, -1, -1 }; int DY[8] = { 1, -1, 0, 0, 1, -1, 1, -1 };
/* ----- __MAKE_TIME__ Problem: __PROBLEM__ / Link: __CONTEST_URL__ ----- */
/* ------問題------
-----問題ここまで----- */
/* -----解説等-----
----解説ここまで---- */
int main() {
cin.tie(0);
ios_base::sync_with_stdio(false);
LL N; cin>>N;
VL a(N);
set<LL>se;
FOR(i, 0, N) {
cin >> a[i];
if (se.find(a[i]) != se.end()) {
se.insert(a[i]);
}
else {
se.erase(a[i]);
}
}
LL ans = SZ(se);
cout<<ans<<endl;
return 0;
}
Submission Info
Submission Time |
|
Task |
C - Write and Erase |
User |
Yang33 |
Language |
C++14 (GCC 5.4.1) |
Score |
0 |
Code Size |
1471 Byte |
Status |
WA |
Exec Time |
11 ms |
Memory |
1024 KB |
Judge Result
Set Name |
Sample |
All |
Score / Max Score |
0 / 0 |
0 / 300 |
Status |
|
|
Set Name |
Test Cases |
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 |
11 ms |
1024 KB |
02.txt |
WA |
11 ms |
1024 KB |
03.txt |
WA |
11 ms |
1024 KB |
04.txt |
WA |
11 ms |
1024 KB |
05.txt |
WA |
11 ms |
1024 KB |
06.txt |
WA |
11 ms |
1024 KB |
07.txt |
AC |
8 ms |
1024 KB |
08.txt |
WA |
11 ms |
1024 KB |
sample_01.txt |
WA |
1 ms |
256 KB |
sample_02.txt |
AC |
1 ms |
256 KB |
sample_03.txt |
WA |
1 ms |
256 KB |