Answer 1

// read comments

#include <iostream>
using namespace std;

int main() {
int n;
cin >> n; //size of the array
//your code goes here
int *nums=new int[n]; // array pointer of type integer having size n;

for (int x=0;x<n;x++){
cin>>nums[x]; // taking input of n elements into nums array..
}

int max = nums[0]; // first element value in max ;
// Then is loop compares each value of array with max value. If element is greater than max then change max value to current element in loop..

for(int i=0; i<n; i++) {
if(nums[i]>max)
max = nums[i];
}

// finally print max value..
cout << max;

}

Ex:
3
2
5
4
Here n = 3
Then
Max = 2
In loop :
2 > 3 false
5 > 3 true so max = 5
4 > 5 false

Max = 5 prints.
Hope it helps...