p4.c

#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>

int main(int argc, char **argv) {
    char digits[7];
    size_t pt1 = 0, pt2 = 0, k;
    for (uint32_t i = 165432; i <= 707912; i++) {
        sprintf(digits, "%u", i);
        bool pt1_ok = false, pt2_ok = false;

        for (size_t j = 0; j < 5; j++) {
            for (k = 1; k + j < 6 && digits[k+j] == digits[j]; k++);
            pt1_ok = pt1_ok || (k >= 2);
            pt2_ok = pt2_ok || (k == 2);
            if (k > 2) j += k-2;
        }

        for (size_t j = 0; j < 5; j++) if (digits[j] > digits[j+1]) { pt1_ok = false; pt2_ok = false; }

        if (pt1_ok) pt1++;
        if (pt2_ok) pt2++;
    }

    printf("%zu, %zu\n", pt1, pt2);
    exit(0);
}