Submission

Score: 100

User: Nay-O

Problemset: ซื้อขายหุ้นซีเค

Language: cpp

Time: 0.009 second

Submitted On: 2026-03-09 21:18:15

#include<bits/stdc++.h>
using namespace std;
using ll = long long;

int main(){
	ios_base::sync_with_stdio(false); cin.tie(NULL);
	
	int n; cin>>n;
	int arr[n+5];
	for(int i = 0; i < n;i++){
		cin>>arr[i];
	}
	
	ll ans = 0;
	
	for(int i = 0; i < n-1; i++){
		if(arr[i+1]>arr[i]){
			ans+=arr[i+1]-arr[i];
		}
	}
	
	cout<<ans;
	
	return 0;
}