Submission #931886

#	Time	Username	Problem	Language	Result	Execution time	Memory
931886		hugsfromadicto	Baloni (COCI15_baloni)	C++14	100 / 100	184 ms	8968 KiB

baloni

#pragma GCC optimize("O3")
#include <bits/stdc++.h>
#define int long long
using namespace std;
const int mxN = 1e6 + 1;
int a[mxN], b[mxN];

void _()
{
    int n;
    cin >> n;
    for(int i = 0;i < n; ++i)
        cin >> a[i];
    map<int,int>r;
    int cnt = 0;
    for(int  i = 0; i < n; ++i)
    {
        if(r[a[i] + 1] == 0)
        {
            cnt++;
        }
        else
        {
            r[a[i] + 1]--;
        }
        r[a[i]]++;
    }
    cout << cnt;
}

main()
{
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);

  int tc = 1;
  while(tc--)
  {
      _();
  }

}

Compilation message (stderr)

baloni.cpp:31:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   31 | main()
      | ^~~~

• Subtask 1: 100 / 100