Language: C++

#if 0
????????£????????????35m
01_knap??¨???????????????????¬????????????????????????????????????????????????£????§£????????¨?????£?????????
????????§?????????????????£???????????£???????????????????????????????????????????????????
?????¨?????????????????¨???????????¨???????§£??????????????¨????????§?????????
#endif

#include <iostream>
using namespace std;

int main() {
	int N,W;
	cin>>N>>W;
	int v[N+10];
	int w[N+10];
	int V[N*W+10];
	int max;

	for(int i=1;i<N+1;i++)
		cin>>v[i]>>w[i];
		
	for (int i=0;i<N+1;++i) { //i????????????????????±
		for (int j=0;j<W+1;++j) { //j????????????????????¶?????¨?????£?????????
			V[j]=max(V[j],V[j-w[i]]+v[i]); 
		}
	}
	cout<< V[W] << endl;
}

Compiler output:
a.cc:2:9: error: extended character £ is not valid in an identifier
    2 | ????????£????????????35m
      |         ^
a.cc:3:30: error: extended character ¬ is not valid in an identifier
    3 | 01_knap??¨???????????????????¬????????????????????????????????????????????????£????§£????????¨?????£?????????
      |                              ^
a.cc:3:79: error: extended character £ is not valid in an identifier
    3 | 01_knap??¨???????????????????¬????????????????????????????????????????????????£????§£????????¨?????£?????????
      |                                                                               ^
a.cc:3:84: error: extended character § is not valid in an identifier
    3 | 01_knap??¨???????????????????¬????????????????????????????????????????????????£????§£????????¨?????£?????????
      |                                                                                    ^
a.cc:3:84: error: extended character £ is not valid in an identifier
a.cc:3:100: error: extended character £ is not valid in an identifier
    3 | 01_knap??¨???????????????????¬????????????????????????????????????????????????£????§£????????¨?????£?????????
      |                                                                                                    ^
a.cc:4:9: error: extended character § is not valid in an identifier
    4 | ????????§?????????????????£???????????£???????????????????????????????????????????????????
      |         ^
a.cc:4:27: error: extended character £ is not valid in an identifier
    4 | ????????§?????????????????£???????????£???????????????????????????????????????????????????
      |                           ^
a.cc:4:39: error: extended character £ is not valid in an identifier
    4 | ????????§?????????????????£???????????£???????????????????????????????????????????????????
      |                                       ^
a.cc:5:44: error: extended character § is not valid in an identifier
    5 | ?????¨?????????????????¨???????????¨???????§£??????????????¨????????§?????????
      |                                            ^
a.cc:5:44: error: extended character £ is not valid in an identifier
a.cc:5:69: error: extended character § is not valid in an identifier
    5 | ?????¨?????????????????¨???????????¨???????§£??????????????¨????????§?????????
      |                                                                     ^
a.cc: In function 'int main()':
a.cc:24:33: error: 'max' cannot be used as a function
   24 |                         V[j]=max(V[j],V[j-w[i]]+v[i]);
      |                              ~~~^~~~~~~~~~~~~~~~~~~~~