Submission

Score: 100

User: august

Problemset: ซื้อขายหุ้นซีเค

Language: cpp

Time: 0.008 second

Submitted On: 2026-03-18 21:07:41

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

#define int long long

int n;

int32_t main() {
    cin.tie(0)->sync_with_stdio(0);
    cin>> n;

    vector<int> a(n+1);
    for (int i=1; i<=n; i++) cin>> a[i];

    int ans = 0;
    for (int i=1; i<=n; i++) {
        if (i==1 || a[i]-a[i-1] <= 0) continue;
        ans+=a[i]-a[i-1];
    }
    cout<< ans;
}