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【单选题】
在下面的程序段中,标记为@的语句的时间复杂度T(n)=f( )。 for( i=1;i<=n;i++) for( j=1;j<=i;j++) for( k=1;k<=j;k++) @k++;A.
n 3 /6
B.
n 3
C.
log 2 n
D.
n 2
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