View Compilation Error

0_0_20936584_22972.cpp: In function 'int main()':
0_0_20936584_22972.cpp:24:16: error: expected primary-expression before '<' token
                <span style="white-space:pre">   </span>int ans = 0;
                ^
0_0_20936584_22972.cpp:24:17: error: 'span' was not declared in this scope
                <span style="white-space:pre">   </span>int ans = 0;
                 ^
0_0_20936584_22972.cpp:29:37: error: 'ans' was not declared in this scope
                         {l = mid +1;ans = max(ans,mid);}//ans即为思路中的j，j必然为s数组中小于t的最大的数
                                     ^
0_0_20936584_22972.cpp:32:7: error: 'ans' was not declared in this scope
     s[ans+1] = t;/******************/
       ^