leetcode

Daily Problem and 1 Random Problem

3 files changed, 35 insertions(+), 0 deletions(-)

diff --git a/ Problems/1267.cpp b/ Problems/1267.cpp

@@ -0,0 +1,22 @@

class Solution {

public:

int countServers(const vector<vector<int>> &grid) {

const int n = grid.size(), m = grid[0].size();

int row[256] = {0}, col[256] = {0};

for (int i = 0; i < n; i++) {

for (int j = 0; j < m; j++) {

if (grid[i][j]) row[i]++, col[j]++;

}

}

int res = 0;

for (int i = 0; i < n; i++) {

for (int j = 0; j < m; j++) {

if (grid[i][j]) res += row[i] > 1 || col[j] > 1;

}

}

return res;

}

};

diff --git a/ Problems/1356.cpp b/ Problems/1356.cpp

@@ -0,0 +1,11 @@

class Solution {

public:

vector<int> sortByBits(vector<int> &arr) const {

sort(begin(arr), end(arr), [](int a, int b) {

const int x = __builtin_popcount(a);

const int y = __builtin_popcount(b);

return x != y ? x < y : a < b;

});

return arr;

}

};

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

@@ -558,6 +558,7 @@ for solving problems. | 1249 | Medium | [Minimum Remove to Make Valid Parentheses](Problems/1249.cpp) | | 1254 | Medium | [Number of Closed Islands](Problems/1254.cpp) | | 1261 | Medium | [Find Elements in a Contaminated Binary Tree](Problems/1261.cpp) |

| 1267 | Medium | [Count Servers that Communicate](Problems/1267.cpp) |

| 1268 | Medium | [Search Suggestions System](Problems/1268.cpp) | | 1269 | Hard | [Number of Ways to Stay in the Same Place After Some Steps](Problems/1269.cpp) | | 1277 | Medium | [Count Square Submatrices with All Ones](Problems/1277.cpp) |

@@ -592,6 +593,7 @@ for solving problems. | 1346 | Easy | [Check if N and Its Double Exist](Problems/1346.cpp) | | 1347 | Medium | [Minimum Number of Steps to Make Two Strings Anagram](Problems/1347.cpp) | | 1351 | Easy | [Count Negative Numbers in a Sorted Matrix](Problems/1351.cpp) |

| 1356 | Easy | [Sort Integers by The Number of 1 Bits](Problems/1356.cpp) |

| 1357 | Medium | [Apply Discount Every n Orders](Problems/1357.cpp) | | 1358 | Medium | [Number of Substrings Containing All Three Characters](Problems/1358.cpp) | | 1359 | Hard | [Count All Valid Pickup and Delivery Options](Problems/1359.cpp) |