题解 | #合并表记录#
合并表记录
http://www.nowcoder.com/practice/de044e89123f4a7482bd2b214a685201
n = int(input()) dic= {} for i in range(n): line = input().split(' ') key = int(line[0]) value = int(line[1]) dic[key] = dic.get(key,0)+value list0 = [] for each in dic: list0.append(each) list0.sort() for i in list0: print(i, dic.get(i))
