#include <ctype.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "aocdailies.h"
#include "aocutils.h"

void aoc202405(char *data, size_t len) {
    (void)len; // unused argument
    // assume (by visual inspection) all page numbers `pn` are between 10 and 99
    unsigned pagepair[1200][2], npp = 0;
    unsigned pagepair[1200][2], npp = 0; // 1200 works for me
    char *line = strtok(data, "\n");
    while (strchr(line, '|')) {
        char *err;
        pagepair[npp][0] = strtoul(line, &err, 10);
        err += 1; // skip '|'
        pagepair[npp][1] = strtoul(line, &err, 10);
        npp++;
        line = strtok(NULL, "\n");
    }
    printf("%u\n", pagepair[0][0]);
    unsigned update[512], nupdates, maxupdates = 0;
    unsigned update[32], nupdates, maxupdates = 0; // 32 works dor me
    while ((line = strtok(NULL, "\n")) != NULL) {
        nupdates = 0;
        char *err = line;
        for (;;) {
            update[nupdates++] = strtoul(err, &err, 10);
            if (*err == ',') err++;
            else break;
        }
        if (nupdates > maxupdates) maxupdates = nupdates;
    }
        for (size_t k = 0; k < nupdates; k++) {
            //...
        }
    printf("%u nax updates\n", maxupdates);
}
    }
}

static size_t rcmap(unsigned size, unsigned row, unsigned col) {
    return row * (size + 1) + col;
}

static bool masat(char *data, unsigned size, unsigned row, unsigned col, int drow, int dcol) {
    int maxrow = (int)row + 3*drow;
    int maxcol = (int)col + 3*dcol;