题解 | 乒乓球

import sys

jilu = input().strip()

def solve(target):
    w_cnt = 0
    l_cnt = 0

    for c in jilu:
        if c == "W":
            w_cnt += 1
        elif c == "L":
            l_cnt += 1


        if (w_cnt >= target or l_cnt >= target) and abs (w_cnt - l_cnt) >= 2:
            print(f"{w_cnt}:{l_cnt}")
            w_cnt = 0
            l_cnt = 0

    print(f"{w_cnt}:{l_cnt}")

solve(11)
print()
solve(21)