leetcode

Daily Problem

2 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/ Problems/0678.cpp b/ Problems/0678.cpp

@@ -0,0 +1,17 @@

class Solution {

public:

bool checkValidString(const string &s) const {

int mini = 0, maxi = 0;

for (const char c : s) {

if (c == '(')

mini++, maxi++;

else if (c == ')')

mini--, maxi--;

else if (c == '*')

maxi++, mini--;

if (maxi < 0) return false;

mini = max(mini, 0);

}

return mini == 0;

}

};

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

@@ -440,6 +440,7 @@ for solving problems. | 0673 | Medium | [Number of Longest Increasing Subsequence](Problems/0673.cpp) | | 0676 | Medium | [Implement Magic Dictionary](Problems/0676.cpp) | | 0677 | Medium | [Map Sum Pairs](Problems/0677.cpp) |

| 0678 | Medium | [Valid Parenthesis String](Problems/0678.cpp) |

| 0684 | Medium | [Redundant Connection](Problems/0684.cpp) | | 0688 | Medium | [Knight Probability in Chessboard](Problems/0688.cpp) | | 0690 | Medium | [Employee Importance](Problems/0690.cpp) |