题解 | #数列求和#
数列求和
http://www.nowcoder.com/practice/6893484c04c24bfca1f606b1823a468d
public class Main {
public static void main(String[] args) {
//write your code here........
long temp=10;
long result=0;
for(int i=0;i<10;i++){
result+=(temp-1);
temp=temp*10;
}
System.out.println(result);
}
}
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