View Compilation Error

0_0_27387366_22935.cpp: In function 'void floyd()':
0_0_27387366_22935.cpp:25:26: error: 'j' was not declared in this scope
                     if(G[j][k]==G[j][i]+G[i][k])
                          ^
0_0_27387366_22935.cpp:25:29: error: 'k' was not declared in this scope
                     if(G[j][k]==G[j][i]+G[i][k])
                             ^
0_0_27387366_22935.cpp:25:38: error: 'i' was not declared in this scope
                     if(G[j][k]==G[j][i]+G[i][k])
                                      ^