View Compilation Error

0_0_17664187_4816.cpp: In function 'int main()':
0_0_17664187_4816.cpp:47:15: error: 'i' was not declared in this scope
    int k=1;js=i;
               ^
0_0_17664187_4816.cpp:48:10: error: 'k' was not declared in this scope
    while(k<=len3&&js<=len2){
          ^
0_0_17664187_4816.cpp:53:7: error: 'k' was not declared in this scope
    if(k==len3+1&&s2[js]==s3[len3]){
       ^
0_0_17664187_4816.cpp:75:27: error: 'cas' was not declared in this scope
   printf("Case #%d: %d\n",cas,ans);
                           ^
0_0_17664187_4816.cpp: At global scope:
0_0_17664187_4816.cpp:77:2: error: expected unqualified-id before 'return'
  return 0;
  ^
0_0_17664187_4816.cpp:78:1: error: expected declaration before '}' token
 }
 ^