#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define endl "\n";
#define vec vector<ll>
#define vecvec vector<vector<ll>>
using namespace std;
/*#define FileName "connect"
string Ghhhh = ".in";
string Ghhhhh = ".out";
ifstream Girdi(FileName + Ghhhh);
ofstream Cikti(FileName + Ghhhhh);
#define cin Girdi
#define cout Cikti*/
inline void solve(){
ll n;
cin >> n;
map<ll,ll> mapp;
for(ll i = 1 ; i <= n ; i++){
ll x;
cin >> x;
if(mapp[x+1] > 0) mapp[x+1]--;
mapp[x]++;
}
ll ans = 0;
for(auto it : mapp){
if(it.second > 0){
ans += it.second;
}
}
cout << ans << endl;
}
signed main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
ll t = 1;
//cin >> t;
while(t--){
solve();
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
504 KB |
Output is correct |
2 |
Correct |
1 ms |
336 KB |
Output is correct |
3 |
Correct |
2 ms |
340 KB |
Output is correct |
4 |
Correct |
2 ms |
336 KB |
Output is correct |
5 |
Correct |
156 ms |
4036 KB |
Output is correct |
6 |
Correct |
125 ms |
3924 KB |
Output is correct |
7 |
Correct |
93 ms |
3196 KB |
Output is correct |
8 |
Correct |
89 ms |
3144 KB |
Output is correct |
9 |
Correct |
126 ms |
3856 KB |
Output is correct |
10 |
Correct |
104 ms |
3656 KB |
Output is correct |