Submission #132785

#TimeUsernameProblemLanguageResultExecution timeMemory
132785VardanyanBaloni (COCI15_baloni)C++14
0 / 100
118 ms131076 KiB
#include <bits/stdc++.h>
using namespace std;
const int N = 1000*1000+5;
int a[N];
bool col[N];
queue<int> mark[N];
int main(){
    ios_base::sync_with_stdio(false);
    int n;
   // cout<<0<<endl;
    cin>>n;
    for(int i = 1;i<=n;i++) cin>>a[i];
    int ans = 0;

    for(int i = 1;i<=n;i++){
        int x = a[i];
        if(mark[x+1].size() == 0){
            mark[x].push(i);
            ans++;
            continue;
        }
        mark[x+1].pop();
        mark[x].push(i);
    }
    cout<<ans<<endl;
    return 0;
}
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