leetcode

Solution to some Leetcode problems written in C++
git clone git://git.dimitrijedobrota.com/leetcode.git
Log | Files | Refs | README | LICENSE |
commit6dd55f3f9a575cbba21cea088673999e733ed146
parent137f3d4b6631ffc3cb3abc47ae2cf2e6da8791e1
authorDimitrije Dobrota <mail@dimitrijedobrota.com>
dateWed, 16 Oct 2024 15:06:29 +0200

1 Random Problem

Diffstat:
AProblems/0401.cpp|+++++++++++++++++++++++++++
MREADME.md|+

2 files changed, 28 insertions(+), 0 deletions(-)

diff --git a/Problems/0401.cpp b/Problems/0401.cpp

@@ -0,0 +1,27 @@

class Solution {
inline static string convert(int n) {
if (n < 10) return '0' + to_string(n);
return to_string(n);
}
public:
vector<string> readBinaryWatch(int turnedOn) const {
if (turnedOn == 0) return {"0:00"};
vector<string> res;
unsigned i = (1 << turnedOn) - 1, t;
while (i < (1 << 10)) {
const int hours = i >> 6, minutes = i & 0x3F;
if (hours < 12 && minutes < 60) {
res.push_back(to_string(hours) + ':' + convert(minutes));
}
const unsigned t = i | (i - 1);
i = (t + 1) | (((~t & -~t) - 1) >> (__builtin_ctz(i) + 1));
}
return res;
}
};

diff --git a/README.md b/README.md

@@ -313,6 +313,7 @@ for solving problems.

| 0394 | Medium | [Decode String](Problems/0394.cpp) |
| 0398 | Medium | [Random Pick Index](Problems/0398.cpp) |
| 0399 | Medium | [Evaluate Division](Problems/0399.cpp) |
| 0401 | Easy | [Binary Watch](Problems/0401.cpp) |
| 0402 | Medium | [Remove K Digits](Problems/0402.cpp) |
| 0403 | Hard | [Frog Jump](Problems/0403.cpp) |
| 0404 | Easy | [Sum of Left Leaves](Problems/0404.cpp) |