Python 实现【二元组个数】
from collections import counterdef count_pairs: m = int(input) a = list(map(int, input.split)) n = int(input) b = list(map(int, in
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China-US joint statement an important step toward resolving differences: commerce ministry
BEIJING, May 12 (Xinhua) -- The joint statement on China-U.S. Economic and Trade Meeting in Geneva is an important step toward res