View Compilation Error

0_0_14171881_23254.cpp: In function 'int main()':
0_0_14171881_23254.cpp:108:29: error: 'da' was not declared in this scope
             scanf("%d%d%d",&da[i],&db[i],&dc[i]);
                             ^
0_0_14171881_23254.cpp:108:36: error: 'db' was not declared in this scope
             scanf("%d%d%d",&da[i],&db[i],&dc[i]);
                                    ^
0_0_14171881_23254.cpp:108:43: error: 'dc' was not declared in this scope
             scanf("%d%d%d",&da[i],&db[i],&dc[i]);
                                           ^
0_0_14171881_23254.cpp:111:23: error: 'A' was not declared in this scope
         scanf("%d%d",&A,&B);
                       ^
0_0_14171881_23254.cpp:111:26: error: 'B' was not declared in this scope
         scanf("%d%d",&A,&B);
                          ^
0_0_14171881_23254.cpp:113:17: error: 'spfa' was not declared in this scope
         spfa(A,B);
                 ^