View Compilation Error

0_0_31191074_17053.cpp: In function 'void calc_ca()':
0_0_31191074_17053.cpp:49:34: error: expected '}' at end of input
  for (int k = 1; k <= n; k *= 2) { //利用对长度为k排序的结果
                                  ^
0_0_31191074_17053.cpp:49:34: error: expected '}' at end of input