View Compilation Error

0_0_30278226_26307.c: In function 'prim_add_node':
0_0_30278226_26307.c:74:13: error: expected expression before '/' token
             // t = p->node_set[r];
             ^
0_0_30278226_26307.c:75:13: error: expected expression before '/' token
             // p->node_set[r] = p->node_set[i];
             ^
0_0_30278226_26307.c:76:13: error: expected expression before '/' token
             // p->node_set[i] = t;
             ^
0_0_30278226_26307.c: In function 'main':
0_0_30278226_26307.c:172:13: error: expected expression before '/' token
             //printf("%0.2f\n", d);
             ^