answer.code:78:5: error: redefinition of ‘int N’
   78 | int N,M;
      |     ^
answer.code:17:5: note: ‘int N’ previously declared here
   17 | int N,M;
      |     ^
answer.code:78:7: error: redefinition of ‘int M’
   78 | int N,M;
      |       ^
answer.code:17:7: note: ‘int M’ previously declared here
   17 | int N,M;
      |       ^
answer.code:79:5: error: redefinition of ‘int X [10010]’
   79 | int X[10010] = {0};
      |     ^
answer.code:18:5: note: ‘int X [10010]’ previously defined here
   18 | int X[10010] = {0};
      |     ^
answer.code:80:5: error: redefinition of ‘int Y [10010]’
   80 | int Y[10010] = {0};
      |     ^
answer.code:19:5: note: ‘int Y [10010]’ previously defined here
   19 | int Y[10010] = {0};
      |     ^
answer.code:81:5: error: redefinition of ‘int W [10010]’
   81 | int W[10010] = {0};
      |     ^
answer.code:20:5: note: ‘int W [10010]’ previously defined here
   20 | int W[10010] = {0};
      |     ^
answer.code:82:4: error: redefinition of ‘long long int dp [3010][3010]’
   82 | ll dp[3010][3010] = {0};
      |    ^~
answer.code:21:4: note: ‘long long int dp [3010][3010]’ previously defined here
   21 | ll dp[3010][3010] = {0};
      |    ^~
answer.code:83:4: error: redefinition of ‘long long int now [3010]’
   83 | ll now[3010] = {0};
      |    ^~~
answer.code:22:4: note: ‘long long int now [3010]’ previously defined here
   22 | ll now[3010] = {0};
      |    ^~~
answer.code:84:4: error: redefinition of ‘long long int maxim [3010]’
   84 | ll maxim[3010] = {0};
      |    ^~~~~
answer.code:23:4: note: ‘long long int maxim [3010]’ previously defined here
   23 | ll maxim[3010] = {0};
      |    ^~~~~
answer.code:86:9: error: redefinition of ‘int64_t max_weights(int, int, int*, int*, int*)’
   86 | int64_t max_weights(int N, int M, int X[], int Y[], int W[]){
      |         ^~~~~~~~~~~
answer.code:25:9: note: ‘int64_t max_weights(int, int, int*, int*, int*)’ previously defined here
   25 | int64_t max_weights(int N, int M, int X[], int Y[], int W[]){
      |         ^~~~~~~~~~~
answer.code:106:5: error: redefinition of ‘int main()’
  106 | int main(){
      |     ^~~~
answer.code:45:5: note: ‘int main()’ previously defined here
   45 | int main(){
      |     ^~~~