Answer 1

Here you go:
#include <iostream>
#include <climits>
using namespace std;
int main(void) {
int i;
int max = INT_MIN;
int arr[] = {8, 4, 6, 3};
int len = sizeof(arr)/sizeof(int);
for (i = 0; i < len; i++) {
if (arr[i] > max) {
max = arr[i];
}
}
cout << max;
return 0;
}