题解 | #记负均正#
记负均正
http://www.nowcoder.com/practice/6abde6ffcc354ea1a8333836bd6876b8
var len=parseInt(readline())
var line=readline()
line=line.split(' ')
var numf=0
var numz=0
var sum=0
var avg=0
var arr=[]
for(let i=0;i<len;i++){
arr.push(parseInt(line[i]))
}
for(let i=0;i<len;i++){
if(arr[i]<0){
numf++
}else if(arr[i]>0){
numz++
sum+=arr[i]
}
}
if(numz===0){avg='0.0'}else{
avg=sum/numz
avg=avg.toFixed(1)
}
console.log(numf,avg)
