foo.cc: In function 'int main()':
foo.cc:22:12: error: 'w' was not declared in this scope
   22 |    if(j >= w[i])
      |            ^
foo.cc:23:48: warning: pointer to a function used in arithmetic [-Wpointer-arith]
   23 |                 dp[i][j] = max(dp[i-1][j-time[i]]+subject[i], dp[i-1][j]);
      |                                                ^
foo.cc:23:41: error: invalid operands of types 'int' and 'time_t(time_t*) throw ()' {aka 'long int(long int*)'} to binary 'operator-'
   23 |                 dp[i][j] = max(dp[i-1][j-time[i]]+subject[i], dp[i-1][j]);
      |                                        ~^~~~~~~~
      |                                        |       |
      |                                        int     time_t(time_t*) throw () {aka long int(long int*)}

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