Submission

Score: 0

User: asamarum70

Problemset: ซื้อขายหุ้นซีเค

Language: cpp

Time: 0.003 second

Submitted On: 2025-12-12 02:11:31

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define fr(i,a,b,c) for(int i = a;i<b;i+=c)
#define fre(i,a,b,c) for(int i = a;i>=b;i-=c)
#define fs first
#define sc second
#define all(a) a.begin(),a.end()
#define IINF 2000000005
#define LINF 1000000000000000005
#define MOD 1000000007
#define str string
#define endl '\n'
using pii = pair<int,int>;
using pll = pair<ll,ll>;
using tiii = tuple<int,int,int>;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int uid(int a, int b) { return uniform_int_distribution<int>(a,b)(rng); }
ll uld(ll a, ll b) { return uniform_int_distribution<ll>(a,b)(rng); }

int main(){
    ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
    int n;cin >> n;
    ll pf = 0;
    ll mx = 0;
    ll mn = IINF;
    fr(i,0,n,1){
        int x;cin >> x;
        if(mn > x){
            pf += mx;
            mn = x;
            mx = 0;
        }else{
            mx = max(mx,x - mn);
        }
    }
    cout << pf + mx << endl;
}