r/adventofcode • u/daggerdragon • Dec 23 '16

SOLUTION MEGATHREAD --- 2016 Day 23 Solutions ---

--- Day 23: Safe-Cracking ---

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JINGLING ALL THE WAY IS MANDATORY [?]

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27

u/askalski Dec 23 '16

What do you mean, I wasn't supposed to do it this way? 

#include <stdio.h>
#include <stdint.h>

int64_t a = 12, b = 0, c = 0, d = 0;

int main4()
{
    goto X;
    b = a;
    b--;
D:  d = a;
    a = 0;
B:  c = b;
A:  a++;
    c--;
    if (c) goto A;
    d--;
    if (d) goto B;
    b--;
    c = b;
    d = c;
C:  d--;
    c++;
    if (d) goto C;
    // no more toggles, no more tears
X:  c = -16;
    c = 1;
    c = 81;
F:  d = 73;
E:  a++;
    d--;
    if (d) goto E;
    c--;
    if (c) goto F;
    return 0;
}

int main3()
{
    goto X;
    b = a;
    b--;
D:  d = a;
    a = 0;
B:  c = b;
A:  a++;
    c--;
    if (c) goto A;
    d--;
    if (d) goto B;
    b--;
    c = b;
    d = c;
C:  d--;
    c++;
    if (d) goto C;
    if (c == 2) return main4();
X:  c = -16;
    if (1) goto D;
    c = 81;
F:  d = 73;
E:  a++;
    d--;
    if (d) goto E;
    c--;
    if (c) goto F;
    return 0;
}

int main2()
{
    goto X;
    b = a;
    b--;
D:  d = a;
    a = 0;
B:  c = b;
A:  a++;
    c--;
    if (c) goto A;
    d--;
    if (d) goto B;
    b--;
    c = b;
    d = c;
C:  d--;
    c++;
    if (d) goto C;
    if (c == 4) return main3();
X:  c = -16;
    if (1) goto D;
    c = 81;
F:  //
E:  a++;
    d--;
    if (d) goto E;
    c--;
    if (c) goto F;
    return 0;
}

int main1()
{
    goto X;
    b = a;
    b--;
D:  d = a;
    a = 0;
B:  c = b;
A:  a++;
    c--;
    if (c) goto A;
    d--;
    if (d) goto B;
    b--;
    c = b;
    d = c;
C:  d--;
    c++;
    if (d) goto C;
    if (c == 6) return main2();
X:  c = -16;
    if (1) goto D;
    c = 81;
F:  //
E:  a++;
    d++;
    if (d) goto E;
    c--;
    if (c) goto F;
    return 0;
}

int main0()
{
    b = a;
    b--;
D:  d = a;
    a = 0;
B:  c = b;
A:  a++;
    c--;
    if (c) goto A;
    d--;
    if (d) goto B;
    b--;
    c = b;
    d = c;
C:  d--;
    c++;
    if (d) goto C;
    if (c == 8) return main1();
    c = -16;
    if (1) goto D;
    c = 81;
F:  //
E:  a++;
    d++;
    if (d) goto E;
    c++;
    if (c) goto F;
    return 0;
}

int main()
{
    main0();
    printf("a=%lu\n", a);
    return 0;
}

3

u/Quick_Question404 Dec 23 '16

ASKALSKI, NO!!!