View Compilation Error

0_0_15073246_20169.cpp: In function 'int main()':
0_0_15073246_20169.cpp:24:12: error: cannot convert 'int*' to 'const char*' for argument '1' to 'size_t strlen(const char*)'
  e=strlen(b);
            ^
0_0_15073246_20169.cpp:41:15: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
    if(ma==a-y+1)
               ^
0_0_15073246_20169.cpp:55:15: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
    if(ma==a-y+1)
               ^