View Compilation Error

0_0_36695328_15055.cpp: In function 'int main()':
0_0_36695328_15055.cpp:53:6: error: 'i' was not declared in this scope
 for (i = 0; i < len; i++)
      ^
0_0_36695328_15055.cpp:92:7: error: 'i' was not declared in this scope
 for ( i = 0; i < m; i++)
       ^