Submission #498010

#	Time	Username	Problem	Language	Result	Execution time	Memory
498010		Aktan	Money (IZhO17_money)	C++17	0 / 100	0 ms	204 KiB

money

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
#define ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
#define int long long
#define ft first
#define sc second
using namespace std;
const int mod=1e9+7,INF=1e17;
set<int> m;
main(){
   int n,ans=1;
   cin >> n;
   vector<int> a(n);
   m.insert(0);
   m.insert(INF);
   for(int i=0;i<n;i++){
   	cin >> a[i];
   	m.insert(a[i]);
   	if(i==0){
   		continue;
	   }
   	auto it=m.upper_bound(a[i-1]);
   	if(*it!=a[i]){
   		ans++;
	   }
   }
   cout << ans;
   
}

Compilation message (stderr)

money.cpp:12:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   12 | main(){
      | ^~~~

• Subtask 1: 0 / 9
• Subtask 2: 0 / 16
• Subtask 3: 0 / 20
• Subtask 4: 0 / 55