题解 | #合并表记录#
合并表记录
https://www.nowcoder.com/practice/de044e89123f4a7482bd2b214a685201
n = input()
strList = []
strMap = {}
for i in range(int(n)):
strList.append(input())
for str in strList:
key, value = str.split(" ")[0], str.split(" ")[1]
if int(key) not in strMap:
strMap[int(key)] = int(value)
else:
strMap[int(key)] += int(value)
for kv in sorted(strMap):
print(f"{kv} {strMap[kv]}")
#一步步慢慢来#