题解 | #公共子串计算#

let str1 = readline(), str2 = readline()
setStr1LessStr2()
findMaxLenSubStr()

function setStr1LessStr2() {
    if (str1.length > str2.length) {
        let temp = str1
        str1 = str2
        str2 = temp
    }
}

function findMaxLenSubStr() {
    for (let maxLen = str1.length; maxLen > 0; maxLen--) {
        for (let start = 0; start + maxLen <= str1.length; start++) {   
            let subStr = str1.substr(start, maxLen)
            if (str2.indexOf(subStr) > -1) {
                print(subStr.length)
                return
            }
        }
    }
    print(0)
}
// werasdfaswer
// rrr

// werasdfaswer
// z