View Compilation Error

0_0_36241217_31365.cpp: In function 'int main(int, const char**)':
0_0_36241217_31365.cpp:15:8: error: expected primary-expression before '<' token
        <span style="white-space:pre;"> </span>
        ^
0_0_36241217_31365.cpp:15:9: error: 'span' was not declared in this scope
        <span style="white-space:pre;"> </span>
         ^
0_0_36241217_31365.cpp:24:14: error: 'len' was not declared in this scope
         for( len=0;len<max;len++){
              ^
0_0_36241217_31365.cpp:32:13: error: 'l' was not declared in this scope
         for(l=len;l<max;l++){
             ^
0_0_36241217_31365.cpp:32:15: error: 'len' was not declared in this scope
         for(l=len;l<max;l++){
               ^
0_0_36241217_31365.cpp:47:19: error: 'l' was not declared in this scope
         for(int x=l-1;x>=0;x--)
                   ^