GFG NEXT GREATER ELEMENT

#include<iostream>

using namespace std;

void printNGE(int arr[], int n) {
    int next, i, j;
    for (i = 0; i < n; i++) {
        next = -1;
        for (j = i + 1; j < n; j++) {
            if (arr[i] < arr[j]) {
                next = arr[j];
                break;
            }
        }
        cout << arr[i] << " -- " << next << endl;
    }
}
 
int main() {
    int arr[] = {11, 13, 21, 3};
    int n = sizeof(arr)/sizeof(arr[0]);
    printNGE(arr, n);
    return 0;
}