View Compilation Error

0_0_13803888_19253.cpp:114:4: error: stray '\' in program
    ans[r/(n*n)][r\n%n]=r%n;
    ^
0_0_13803888_19253.cpp: In function 'int dfs(int)':
0_0_13803888_19253.cpp:114:19: error: expected ']' before 'n'
    ans[r/(n*n)][r\n%n]=r%n;
                   ^
0_0_13803888_19253.cpp:114:19: error: expected ';' before 'n'