题解 | #在字符串中找出连续最长的数字串#

遍历

import sys
for s in sys.stdin:
    cnt, cur, last, n = 0, 0, 0, len(s)
    while cur < n:
        while cur < n and s[cur].isdigit(): cur += 1
        if cur != last:
            if cur-last > cnt:
                cnt = cur-last
                res = s[last:cur]                
            elif cur-last == cnt:
                res += s[last:cur]
            last = cur
        while cur < n and not s[cur].isdigit():
            cur += 1
            last += 1
    print(f"{res},{cnt}")