题解 | #删除字符串中出现次数最少的字符#
删除字符串中出现次数最少的字符
https://www.nowcoder.com/practice/05182d328eb848dda7fdd5e029a56da9
let str = readline().split('')
let m = new Map()
str.forEach(e=>{
if(m.has(e)){
m.set(e,m.get(e)+1)
}else{
m.set(e,1)
}
})
let smallest = Math.min(...m.values())
let del = []
m.forEach((value,key)=>{
if(value==smallest){
del.push(key)
}
})
str = str.join('')
del.forEach(n=>{
let re = new RegExp(n,'g')
str = str.replace(re,'')
})
print(str)
