题解 | #合并表记录#
合并表记录
http://www.nowcoder.com/practice/de044e89123f4a7482bd2b214a685201
n = int(input())
temp = {}
for i in range(0, n):
s =input()
key = int(s.split(" ")[0])
value = int(s.split(" ")[1])
if key not in temp.keys():
temp[key] = value
else:
temp[key] = temp[key]+value
for key in sorted(temp):
print(key, temp[key])
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