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update datalab

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18218461270@163.com 2025-08-04 19:14:30 +08:00
parent d16c81c57c
commit 2accc057a4
1 changed files with 1 additions and 1 deletions
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labs/datalab/bits.c
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@ -202,7 +202,7 @@ int negate(int x) {
*/
int isAsciiDigit(int x) {
x ^= 0x30;
return (!(x >> 4)) & ((~x >> 3) | ((~x >> 2) & (~x >> 1)));
return !((x | (x + 6)) >> 4);
}
/*
* conditional - same as x ? y : z