leetcode

Daily Problem

2 files changed, 23 insertions(+), 0 deletions(-)

diff --git a/ Problems/2485.cpp b/ Problems/2485.cpp

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

class Solution {

public:

int pivotInteger(const int n) const {

int i = 1, j = n, l = 0, h = 0;

while (i < j) {

if (l < h)

l += i++;

else

h += j--;

}

return l == h ? i : -1;

}

};

class Solution {

public:

int pivotInteger(const int n) const {

const int sum = n * (n + 1) / 2;

const int pivot = sqrt(sum);

return pivot * pivot == sum ? pivot : -1;

}

};

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

@@ -1083,6 +1083,7 @@ for solving problems. | 2477 | Medium | [Minimum Fuel Cost to Report to the Capital](Problems/2477.cpp) | | 2482 | Medium | [Difference Between Ones and Zeros in Row and Column](Problems/2482.cpp) | | 2483 | Medium | [Minimum Penalty for a Shop](Problems/2483.cpp) |

| 2485 | Easy | [Find the Pivot Integer](Problems/2485.cpp) |

| 2486 | Medium | [Append Characters to String to Make Subsequence](Problems/2486.cpp) | | 2487 | Medium | [Remove Nodes From Linked List](Problems/2487.cpp) | | 2491 | Medium | [Divide Players Into Teams of Equal Skill](Problems/2491.cpp) |