Submission

Score: 100

User: Seng

Problemset: ซื้อขายหุ้นซีเค

Language: cpp

Time: 0.009 second

Submitted On: 2026-03-07 10:59:53

#include <bits/stdc++.h>
using namespace std;
long long int p[100005];

int main(){

    ios::sync_with_stdio(0);cin.tie(0);

    int n;cin >> n;
    long long int ans = 0;

    for(int i = 1; i <= n; i++){
        cin >> p[i];
        if(i == 1) continue;
        if(p[i] > p[i-1]) ans += p[i]-p[i-1];
    }

    cout << ans;

    return 0;
}