JavaScript题解 const n = Number(read_line()) const arr = gets(100000).trim().split(' ') const m = Number(read_line()) const target = gets(100000).trim().split(' ').join('') let res = 0 //丢掉队尾积木,直到和目标有相同后缀 while (!target.endsWith(arr.join(''))) { arr.pop() res ++ } //补充缺少的队头积木 res += m - arr...