View Compilation Error

0_0_29799404_9103.cpp: In function 'int main()':
0_0_29799404_9103.cpp:18:9: error: 'j' was not declared in this scope
   while(j<len&&ce){
         ^
0_0_29799404_9103.cpp:18:11: error: 'len' was not declared in this scope
   while(j<len&&ce){
           ^
0_0_29799404_9103.cpp: At global scope:
0_0_29799404_9103.cpp:33:3: error: expected declaration before '}' token
   }
   ^