View Compilation Error

0_0_25077392_27177.cpp: In function 'void Floyd(int)':
0_0_25077392_27177.cpp:6:1: error: 'registerint' was not declared in this scope
 registerint i,k,j;
 ^
0_0_25077392_27177.cpp:7:6: error: 'k' was not declared in this scope
 for (k=0;k<n;k++)
      ^
0_0_25077392_27177.cpp:9:8: error: 'i' was not declared in this scope
   for (i=0;i<n;i++)
        ^
0_0_25077392_27177.cpp:12:10: error: 'j' was not declared in this scope
     for (j=0;j<n;j++)
          ^