问题描述
我的第一个解决方案：
/**
* @param {string} s
* @return {boolean}
*/
var isValid = function (s) {
let stack = [];
let compliments = { ")": "(", "]": "[", "}": "{" };
for (let char of s) {
if (char === "(" || char === "[" || char === "{") {
stack.push(char);
} else if (stack.length === 0 || stack.pop() !== compliments[char]) {
return false;
}
}
return stack.length === 0;
};
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