Overview
| Comment: | comment on conditional |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
9c47eb77fcfc71a1a5ce47c90700fb7d |
| User & Date: | nnz on 2024-12-03 21:04:25 |
| Other Links: | manifest | tags |
Context
|
2024-12-04
| ||
| 08:56 | reworked warning options and C standard check-in: 7965556304 user: nnz tags: trunk | |
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2024-12-03
| ||
| 21:04 | comment on conditional check-in: 9c47eb77fc user: nnz tags: trunk | |
| 17:06 | added README check-in: 8edf0a7408 user: nnz tags: trunk | |
Changes
Modified aoc2024.c from [1fed90368b] to [c69db65f02].
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char *doleft = data;
char *dorite = strstr(data + 1, "do()");
char *dontleft = data;
char *dontrite = strstr(dontleft + 1, "don't()");
for (;;) {
char *mul = strstr(rest, "mul(");
if (mul) {
while (dorite && (mul > dorite)) {
doleft = dorite;
dorite = strstr(dorite + 1, "do()");
}
while (dontrite && (mul > dontrite)) {
dontleft = dontrite;
dontrite = strstr(dontrite + 1, "don't()");
}
rest = mul + 4;
if (isdigit((unsigned char)rest[0])) {
char *err;
term[0] = (int)strtol(rest, &err, 10);
if (*err == ',') {
if (isdigit((unsigned char)err[1])) {
rest = err + 1;
term[1] = (int)strtol(rest, &err, 10);
if (*err == ')') {
sumproducts += term[0] * term[1];
sumproducts2 += (doleft >= dontleft) * (term[0] * term[1]);
rest = err + 1;
}
}
}
}
} else {
| > > > | 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 |
char *doleft = data;
char *dorite = strstr(data + 1, "do()");
char *dontleft = data;
char *dontrite = strstr(dontleft + 1, "don't()");
for (;;) {
char *mul = strstr(rest, "mul(");
if (mul) {
// make sure `doleft` and `dorite` are to the left and right of `mul`
while (dorite && (mul > dorite)) {
doleft = dorite;
dorite = strstr(dorite + 1, "do()");
}
// also for `dontleft` and `dontrite`
while (dontrite && (mul > dontrite)) {
dontleft = dontrite;
dontrite = strstr(dontrite + 1, "don't()");
}
rest = mul + 4;
if (isdigit((unsigned char)rest[0])) {
char *err;
term[0] = (int)strtol(rest, &err, 10);
if (*err == ',') {
if (isdigit((unsigned char)err[1])) {
rest = err + 1;
term[1] = (int)strtol(rest, &err, 10);
if (*err == ')') {
sumproducts += term[0] * term[1];
// multiply by 0 if closest conditional to the left is "don't()"
sumproducts2 += (doleft >= dontleft) * (term[0] * term[1]);
rest = err + 1;
}
}
}
}
} else {
|
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