Submission

Status:

[PPPPPPPPPPPPP]

Subtask/Task Score:

{100/100}

Score: 100

User: 12345678

Problemset: ซื้อขายหุ้นซีเค

Language: cpp

Time: 0.009 second

Submitted On: 2025-11-27 21:16:41

#include <bits/stdc++.h>

using namespace std;

#define ll long long 

const int nx=1e5+5;

ll n, p[nx], sm;

int main()
{
    cin.tie(NULL)->sync_with_stdio(false);
    cin>>n;
    for (int i=1; i<=n; i++) cin>>p[i];
    for (int i=2; i<=n; i++) sm+=max(p[i]-p[i-1], 0ll);
    cout<<sm;    
}