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如何判断左右小括号是否全部匹配。如 (( ))()((((()))))?
var isValid = function(s) { var stack = [] var map = { '(' : ')', '[': ']', '{': '}' } for (var char of s) { if(char in map) { stack.push(char) } else { if( !stack.length || char != map[stack.pop()]) { return false } } } // 如果最后stack 里没有元素了, 就一定是匹配的 return !stack.length };
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如何判断左右小括号是否全部匹配。如 (( ))()((((()))))?
The text was updated successfully, but these errors were encountered: