Submission #1295918

#	Time	Username	Problem	Language	Result	Execution time	Memory
1295918		nathako9n	Lightning Rod (NOI18_lightningrod)	C++20	Compilation error	0 ms	0 KiB

Main

{
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cin >> n;
    for(int i =1;i<=n;i++){
		int x, y; cin >> x >> y;
		ar[i]= {x+y, x-y};
	}
	sort(ar+1, ar+n+1, greater<pair<int,int>>());
	vector<int> tail;
    for(int i=0;i<n;i++){
        int val = ar[i+1].second;
        auto it = lower_bound(tail.begin(), tail.end(), -val);
        if(it==tail.end()) tail.push_back(-val);
        else *it = 
        -val;
    }
    cout<<tail.size()<<"\n";
    return 0;
}

Compilation message (stderr)

Main.cpp:1:1: error: expected unqualified-id before '{' token
    1 | {
      | ^