View Compilation Error

0_0_20506043_3068.cpp: In function 'int main()':
0_0_20506043_3068.cpp:69:12: error: 'i' was not declared in this scope
         mp[i][j]='X';
            ^
0_0_20506043_3068.cpp:69:15: error: 'j' was not declared in this scope
         mp[i][j]='X';
               ^