arr[idx++] = i;
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What is the difference between Blockchain and a Database?Generally a database is a collection of data which can be stored and organized using a database management system. The people who have access to the database can view or edit the information stored there. The client-server network architecture is used to implement databases. whereas a blockchain is a growing list of records, called blocks, stored in a distributed system. Each block contains a cryptographic hash of the previous block, timestamp and transaction information. Modification of data is not allowed due to the design of the blockchain. The technology allows decentralized control and eliminates risks of data modification by other parties.。旺商聊官方下载对此有专业解读
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往后四十余年的时间证明，这是一个有点奢侈的愿望。即使亲生母亲就在十五公里外的隔壁镇。阿爸的生母在他的童年里几乎空白，直到2015年前后她去世。阿爸对她的印象，也只是卖甜粿的，村里人都叫她“阿英”。