题解 | #合并表记录#
合并表记录
https://www.nowcoder.com/practice/de044e89123f4a7482bd2b214a685201
import sys count = 0 dic = {} for line in sys.stdin: if(count==0): count+=1 else: a = line.split() try: dic[int(a[0])] += int(a[1]) except: dic[int(a[0])] = int(a[1]) for i in sorted(dic): print(str(i)+' '+str(dic[i]))