Language: C++

#include<bits/stdc++.h>
using namespace std;
int dp[105][10000000];
unsigned long long int knapsack(unsigned long long int *wt,long long *val,unsigned long long int w, int n)
{
for(int i=0;i<=n;i++)
{
for(int j=0;j<=w;j++)
{
if(i==0 || j==0)
{
dp[i][j]=0;
}
else
{
if(wt[i-1]>j)
{
dp[i][j]=dp[i-1][j];
}
else
{
dp[i][j]=max(val[i-1]+dp[i-1][j-wt[i-1]],dp[i-1][j]);
}
}
}
}
return dp[n][w];

}
int main()
{
  int n;
unsigned long long int w;
cin>>n;
cin>>w;
unsigned long long int wt[n];
int val[n];
for(int i=0;i<n;i++)
{
cin>>wt[i];
cin>>val[i];
}
cout<<knapsack(wt,val,w,n)<<endl;
return 0;
}


Compiler output:
a.cc: In function 'long long unsigned int knapsack(long long unsigned int*, long long int*, long long unsigned int, int)':
a.cc:22:13: error: no matching function for call to 'max(long long int, int&)'
   22 | dp[i][j]=max(val[i-1]+dp[i-1][j-wt[i-1]],dp[i-1][j]);
      |          ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:22:13: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   22 | dp[i][j]=max(val[i-1]+dp[i-1][j-wt[i-1]],dp[i-1][j]);
      |          ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:22:13: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   22 | dp[i][j]=max(val[i-1]+dp[i-1][j-wt[i-1]],dp[i-1][j]);
      |          ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
a.cc: In function 'int main()':
a.cc:43:19: error: cannot convert 'int*' to 'long long int*'
   43 | cout<<knapsack(wt,val,w,n)<<endl;
      |                   ^~~
      |                   |
      |                   int*
a.cc:4:71: note:   initializing argument 2 of 'long long unsigned int knapsack(long long unsigned int*, long long int*, long long unsigned int, int)'
    4 | unsigned long long int knapsack(unsigned long long int *wt,long long *val,unsigned long long int w, int n)
      |                                                            ~~~~~~~~~~~^~~