View Compilation Error

0_0_36481865_31065.cpp: In function 'int main()':
0_0_36481865_31065.cpp:22:17: error: 'pre' was not declared in this scope
                 pre = a[i] + cc;
                 ^
0_0_36481865_31065.cpp:22:30: error: 'cc' was not declared in this scope
                 pre = a[i] + cc;
                              ^
0_0_36481865_31065.cpp:30:17: error: 'pre' was not declared in this scope
                 pre = a[i] + cc;
                 ^
0_0_36481865_31065.cpp:30:30: error: 'cc' was not declared in this scope
                 pre = a[i] + cc;
                              ^
0_0_36481865_31065.cpp:35:17: error: 'cc' was not declared in this scope
                 cc = pre - a[i] + 1;
                 ^
0_0_36481865_31065.cpp:35:22: error: 'pre' was not declared in this scope
                 cc = pre - a[i] + 1;
                      ^
0_0_36481865_31065.cpp:42:16: error: 'cc' was not declared in this scope
             if(cc < k) cc++;
                ^