题解 | #合并表记录#
合并表记录
https://www.nowcoder.com/practice/de044e89123f4a7482bd2b214a685201
import sys
data_dict = {}
dict_size = int(input())
i = 0
while i < dict_size:
k, v = input().split()
# print(k+" "+v)
if int(k) in data_dict.keys():
data_dict[int(k)] += int(v)
else:
data_dict[int(k)] = int(v)
i += 1
for k,v in sorted(data_dict.items()):
print(str(k)+" "+ str(v))
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