这几个空咋填啊啊，来个人救命🆘😱
i < strlen(str)
chars[j]
str[i]
chars[j]
0
count[i] > count[max_occr_idx]
i<strlen(str)
str[i] chars[j]
chars[j]
0
max_ccr_idx<count[i]
find_max_occurrence(str)
i < strlen(str)
chars[j]
str[i]
chars[j]
0
count[i] > count[max_occr_idx]
i<strlen(str)
str[i] chars[j]
chars[j]
0
max_ccr_idx<count[i]
find_max_occurrence(str)