题解 | #合并表记录#
合并表记录
https://www.nowcoder.com/practice/de044e89123f4a7482bd2b214a685201
import sys
input_data = sys.stdin.read().split()
n = int(input_data[0])
D = {}
for i in range(1,n*2,2):
index = int(input_data[i])
value = int(input_data[i+1])
if index in D.keys():
D[index] = D[index] + value
else:
D[index] = value
for index in sorted(D.keys()):
print(index,D[index])
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