leetcode

Solution to some Leetcode problems written in C++
git clone git://git.dimitrijedobrota.com/leetcode.git
Log | Files | Refs | README | LICENSE |
commitcb13a928c30437e4c11bab9084b3fb3deaa838d2
parentf6f1bbdc52b33ced7eb454ab498b777426855135
authorDimitrije Dobrota <mail@dimitrijedobrota.com>
dateSun, 21 Jul 2024 19:13:08 +0200

Daily Problem

Diffstat:
AProblems/2392.cpp|++++++++++++++++++++++++++++++++++++++++++++++++++++
MREADME.md|+

2 files changed, 53 insertions(+), 0 deletions(-)

diff --git a/Problems/2392.cpp b/Problems/2392.cpp

@@ -0,0 +1,52 @@

class Solution {
static vector<int> create(int k, const vector<vector<int>> &conditions) {
vector<vector<int>> adj(k + 1);
static int count[402];
memset(count, 0x00, sizeof(count));
for (const auto &row : conditions) {
adj[row[0]].push_back(row[1]);
count[row[1]]++;
}
queue<int> q;
for (int i = 1; i <= k; i++) {
if (count[i] != 0) continue;
q.push(i);
}
if (q.empty()) return {};
int cnt = 0;
vector<int> res(k + 1, -1);
while (!q.empty()) {
const auto crnt = q.front();
q.pop();
for (const int below : adj[crnt]) {
if (--count[below] != 0) continue;
q.push(below);
}
res[crnt] = cnt++;
}
return cnt == k ? res : vector<int>();
}
public:
vector<vector<int>> buildMatrix(int k, const vector<vector<int>> &rowConditions,
const vector<vector<int>> &colConditions) const {
const auto row = create(k, rowConditions);
if (row.empty()) return {};
const auto col = create(k, colConditions);
if (col.empty()) return {};
vector<vector<int>> res(k, vector(k, 0));
for (int i = 1; i <= k; i++)
res[row[i]][col[i]] = i;
return res;
}
};

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

@@ -1152,6 +1152,7 @@ for solving problems.

| 2385 | Medium | [Amount of Time for Binary Tree to Be Infected](Problems/2385.cpp) |
| 2390 | Medium | [Removing Stars From a String](Problems/2390.cpp) |
| 2391 | Medium | [Minimum Amount of Time to Collect Garbage](Problems/2391.cpp) |
| 2392 | Hard | [Build a Matrix With Conditions](Problems/2392.cpp) |
| 2396 | Medium | [Strictly Palindromic Number](Problems/2396.cpp) |
| 2397 | Medium | [Maximum Rows Covered by Columns](Problems/2397.cpp) |
| 2401 | Medium | [Longest Nice Subarray](Problems/2401.cpp) |