Best_Time_to_Buy_and_Sell_Stock_II.c

#include<stdio.h>
int main()
{
    int n,i,j,k=0;
    scanf("%d",&n);
    int a[n];
    for(i=0;i<n;i++)
    {
        scanf("%d",&a[i]);
    }
    for(i=0;i<n-1;i++)
    {
        if(a[i]<a[i+1])
        {
            k=k+(a[i+1]-a[i]);
        }
    }
    printf("%d",k);
}