View Compilation Error

0_0_31222434_27117.cpp: In function 'int main()':
0_0_31222434_27117.cpp:14:7: error: 'i' was not declared in this scope
   for(i=0;b<z;b++)
       ^
0_0_31222434_27117.cpp:19:7: error: 'i' was not declared in this scope
   for(i=0;i<n;i++) //Time complexity: O(n^3)
       ^
0_0_31222434_27117.cpp:19:13: error: 'n' was not declared in this scope
   for(i=0;i<n;i++) //Time complexity: O(n^3)
             ^
0_0_31222434_27117.cpp:21:8: error: 'j' was not declared in this scope
    for(j=i;j<n;j++) // pay attention this: j starts from i not i+1
        ^
0_0_31222434_27117.cpp:24:9: error: 'k' was not declared in this scope
     for(k=i;k<=j;k++)
         ^