Increasing Sequence

#include <stdio.h>

int main() {

    int n, n_old=0, counter = 0, max = 0;

    do  {

        scanf(" %d", &n);
        if( n > n_old){
            ++counter;
        } else{
            if (max <= counter){ // If the max is smaller than the new sequence
                max = counter ; // Changes the new max to the counter
                counter = 1; // Updates the counter
                }
        }

        n_old = n; // Updates the old number for the next loop

    }  while( n != 0 );

    printf("%d\n", max);

    return 0;
}