题解 | #合并表记录#
合并表记录
https://www.nowcoder.com/practice/de044e89123f4a7482bd2b214a685201
#level - easy with python, 类似词频统计n=int(input()) l={} while True: try: for i in range(n): s=str(input()).split(' ') #要以空格split if int(s[0]) in l.keys(): l[int(s[0])]=l[int(s[0])]+int(s[1]) elif int(s[0]) not in l.keys(): l[int(s[0])]=int(s[1]) #按案例格式输出 for key, value in sorted(l.items()): print(key, value) except: break