View Compilation Error

0_0_36701983_10597.cpp: In function 'int main()':
0_0_36701983_10597.cpp:38:34: error: expected primary-expression before '<' token
    sort(mat[i]+1,mat[i]+1+n,cmp);<span style="white-space:pre"> </span>//
                                  ^
0_0_36701983_10597.cpp:38:35: error: 'span' was not declared in this scope
    sort(mat[i]+1,mat[i]+1+n,cmp);<span style="white-space:pre"> </span>//
                                   ^