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답안 #330886

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
330886 2020-11-26T20:09:21 Z Sho10 Baloni (COCI15_baloni) C++14
100 / 100
 258 ms 7404 KB 
#include <bits/stdc++.h> //Andrei Alexandru a.k.a Sho10
#define ll long long
#define double long double
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#define all(a) (a).begin(), (a).end()
#define f first
#define s second
#define pb push_back
#define mp make_pair
#define pi pair
#define rc(s) return cout<<s,0
#define endl '\n'
#define mod 1000007
#define PI 3.14159265359
#define MAXN 100005
#define INF 1000000005
#define LINF 1000000000000000005ll
#define CODE_START  ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
using namespace std;
ll n,a[1000005],ans=0;
map<ll,ll>viz;
int32_t main(){
CODE_START;
cin>>n;
for(ll i=1;i<=n;i++)
{
    cin>>a[i];
}
reverse(a+1,a+n+1);
for(ll i=1;i<=n;i++)
{
    if(viz[a[i]-1]>=1){
        viz[a[i]]++;
        viz[a[i]-1]--;
        continue;
    }
    ans++;
    viz[a[i]]++;
}
cout<<ans;
}

Subtask #1
100.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 2 ms 492 KB Output is correct
4 Correct 2 ms 492 KB Output is correct
5 Correct 258 ms 6764 KB Output is correct
6 Correct 249 ms 7404 KB Output is correct
7 Correct 192 ms 6124 KB Output is correct
8 Correct 192 ms 6124 KB Output is correct
9 Correct 231 ms 6508 KB Output is correct
10 Correct 235 ms 6636 KB Output is correct