题解 | 大整数哈希
大整数哈希
https://www.nowcoder.com/practice/29f0cff8a69b4ab6a2f63fb7386defa3
n = int(input()) ans, dic = 0, dict() for i in range(1,n+1): x, y = map(int,input().split()) ans += i*dic.setdefault(x,0) dic[x] = y print(ans%2**64)
大整数哈希
https://www.nowcoder.com/practice/29f0cff8a69b4ab6a2f63fb7386defa3
n = int(input()) ans, dic = 0, dict() for i in range(1,n+1): x, y = map(int,input().split()) ans += i*dic.setdefault(x,0) dic[x] = y print(ans%2**64)
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