View Compilation Error

0_0_20489129_14109.cpp: In function 'void floyd()':
0_0_20489129_14109.cpp:9:9: error: 'i' was not declared in this scope
     for(i = 1; i <= n; i++)
         ^
0_0_20489129_14109.cpp:10:17: error: 'j' was not declared in this scope
             for(j = 1; j <= n; j++) 
                 ^