View Compilation Error

0_0_39240784_28216.cpp: In function 'int lca(int, int)':
0_0_39240784_28216.cpp:37:11: error: expected primary-expression before '=' token
   37 |     ans +== cost[x][0] + cost[y][0];
      |           ^
0_0_39240784_28216.cpp: At global scope:
0_0_39240784_28216.cpp:65:5: error: redefinition of 'int main()'
   65 | int main(){
      |     ^~~~
0_0_39240784_28216.cpp:60:5: note: 'int main()' previously defined here
   60 | int main(){
      |     ^~~~