题解 | 记负均正
def int_negative(n,m): negative = 0 sum = 0 positive = 0 for i in m: if int(i) < 0: negative +=1 elif int(i) > 0: sum += int(i) positive +=1 if sum > 0: pos_avg = round(float(sum/positive),1) else: pos_avg = 0.0 return negative,pos_avg n = int(input()) m = input().split() print(' '.join(map(str,(int_negative(n,m)))))