Language: C++

#include <bits/stdc++.h>
using namespace std;

int main(){
  int a;
  cin>>a;
  vector<int> base(a);
  for(&x:base){
    cin>>x;
  }
  int b;
  vector<vector<int>> pow(b,vector<int>(2));
  for(int i=0;i<b;i++){
    cin>>pow[i][0]>>pow[i][1];
  }
  int sum=0;
  for(int i=0;i<a;i++){
    sum+=base[i];
  }
  for(int i=0;i<b;i++){
    int log=sum;
    log+=pow[i][1]-base[pow[i][0]];
    cout<<log<<endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:9: error: found ':' in nested-name-specifier, expected '::'
    8 |   for(&x:base){
      |         ^
      |         ::
a.cc:8:8: error: 'x' has not been declared
    8 |   for(&x:base){
      |        ^
a.cc:11:8: error: expected initializer before ';' token
   11 |   int b;
      |        ^
a.cc:12:23: error: expected primary-expression before 'pow'
   12 |   vector<vector<int>> pow(b,vector<int>(2));
      |                       ^~~
a.cc:12:22: error: expected ')' before 'pow'
   12 |   vector<vector<int>> pow(b,vector<int>(2));
      |                      ^~~~
      |                      )
a.cc:8:6: note: to match this '('
    8 |   for(&x:base){
      |      ^
a.cc:12:26: error: no matching function for call to 'pow(int&, std::vector<int>)'
   12 |   vector<vector<int>> pow(b,vector<int>(2));
      |                       ~~~^~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/valarray:605,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:166,
                 from a.cc:1:
/usr/include/c++/14/bits/valarray_after.h:549:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::_Pow, std::_Constant, std::_ValArray, _Tp, _Tp>, _Tp> std::pow(const typename valarray<_Tp>::value_type&, const valarray<_Tp>&)'
  549 | _DEFINE_EXPR_BINARY_FUNCTION(pow, struct std::_Pow)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:549:1: note:   template argument deduction/substitution failed:
a.cc:12:26: note:   'std::vector<int>' is not derived from 'const std::valarray<_Tp>'
   12 |   vector<vector<int>> pow(b,vector<int>(2));
      |                       ~~~^~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:549:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::_Pow, std::_ValArray, std::_Constant, _Tp, _Tp>, _Tp> std::pow(const valarray<_Tp>&, const typename valarray<_Tp>::value_type&)'
  549 | _DEFINE_EXPR_BINARY_FUNCTION(pow, struct std::_Pow)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:549:1: note:   template argument deduction/substitution failed:
a.cc:12:26: note:   mismatched types 'const std::valarray<_Tp>' and 'int'
   12 |   vector<vector<int>> pow(b,vector<int>(2));
      |                       ~~~^~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:549:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::_Pow, std::_ValArray, std::_ValArray, _Tp, _Tp>, _Tp> std::pow(const valarray<_Tp>&, const valarray<_Tp>&)'
  549 | _DEFINE_EXPR_BINARY_FUNCTION(pow, struct std::_Pow)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:549:1: note:   template argument deduction/substitution failed:
a.cc:12:26: note:   mismatched types 'const std::valarray<_Tp>' and 'int'
   12 |   vector<vector<int>> pow(b,vector<int>(2));
      |                       ~~~^~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:549:1: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::_Pow, std::_Constant, std::_Expr, typename _Dom::value_type, _Dom>, typename _Dom::value_type> std::pow(const typename _Dom::value_type&, const _Expr<_Dom1, typename _Dom1::value_type>&)'
  549 | _DEFINE_EXPR_BINARY_FUNCTION(pow, struct std::_Pow)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:549:1: note:   template argument deduction/substitution failed:
a.cc:12:26: note:   'std::vector<int>' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
   12 |   vector<vector<int>> pow(b,vector<int>(2));
      |                       ~~~^~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:549:1: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::_Pow, std::_Expr, std::_Constant, _Dom, typename _Dom::value_type>, typename _Dom::value_type> std::pow(const _Expr<_Dom1, typename _Dom1::value_type>&, const typename _Dom::value_type&)'
  549 | _DEFINE_EXPR_BINARY_FUNCTION(pow, struct std::_Pow)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:549:1: note:   template argument deduction/substitution failed:
a.cc:12:26: note:   mismatched types 'const std::_Expr<_Dom1, typename _Dom1::value_type>' and 'int'
   12 |   vector<vector<int>> pow(b,vector<int>(2));
      |                       ~~~^~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:549:1: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::_Pow, std::_ValArray, std::_Expr, typename _Dom::value_type, _Dom>, typename _Dom::value_type> std::pow(const valarray<typename _Dom::valarray>&, const _Expr<_Dom1, typename _Dom1::value_type>&)'
  549 | _DEFINE_EXPR_BINARY_FUNCTION(pow, struct std::_Pow)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:549:1: note:   template argument deduction/substitution failed:
a.cc:12:26: note:   'std::vector<int>' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
   12 |   vector<vector<int>> pow(b,vector<int>(2));
      |                       ~~~^~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:549:1: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::_Pow, std::_Expr, std::_ValArray, _Dom, typename _Dom::value_type>, typename _Dom::value_type> std::pow(const _Expr<_Dom1, typename _Dom1::value_type>&, const valarray<typename _Dom::value_type>&)'
  549 | _DEFINE_EXPR_BINARY_FUNCTION(pow, struct std::_Pow)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:549:1: note:   template argument deduction/substitution failed:
a.cc:12:26: note:   mismatched types 'const std::_Expr<_Dom1, typename _Dom1::value_type>' and 'int'
   12 |   vector<vector<int>> pow(b,vector<int>(2));
      |                       ~~~^~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:549:1: note: candidate: 'template<class _Dom1, class _Dom2> std::_Expr<std::__detail::_BinClos<std::_Pow, std::_Expr, std::_Expr, _Dom1, _Dom2>, typename _Dom1::value_type> std::pow(const _Expr<_Dom1, typename _Dom1::value_type>&, const _Expr<_Dom2, typename _Dom2::value_type>&)'
  549 | _DEFINE_EXPR_BINARY_FUNCTION(pow, struct std::_Pow)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:549:1: note:   template argument deduction/substitution failed:
a.cc:12:26: note:   mismatched types 'const std::_Expr<_Dom1, typename _Dom1::value_type>' and 'int'
   12 |   vector<vector<int>> pow(b,vector<int>(2));
      |                       ~~~^~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127:
/usr/include/c++/14/complex:2482:5: note: candidate: 'template<class _Tp, class _Up> std::complex<typename __gnu_cxx::__promote<decltype (((typename __gnu_cxx::__promote<_Tp, std::__is_integer<_Tp>::__value>::__type)(0) + (typename __gnu_cxx::__promote<_Up, std::__is_integer<_Up>::__value>::__type)(0)))>::__type> std::pow(const complex<_Tp>&, const complex<_Up>&)'
 2482 |     pow(const std::complex<_Tp>& __x, const std::complex<_Up>& __y)
      |     ^~~
/usr/include/c++/14/complex:2482:5: note:   template argument deduction/substitution failed:
a.cc:12:26: note:   mismatched types 'const std::complex<_Tp>' and 'int'
   12 |   vector<vector<int>> pow(b,vector<int>(2));
      |                       ~~~^~~~~~~~~~~~~~~~~~
/usr/include/c++/14/complex:2474:5: note: candidate: 'template<class _Tp, class _Up> std::complex<typename __gnu_cxx::__promote<decltype (((typename __gnu_cxx::__promote<_Tp, std::__is_integer<_Tp>::__value>::__type)(0) + (typename __gnu_cxx::__promote<_Up, std::__is_integer<_Up>::__value>::__type)(0)))>::__type> std::pow(const _Tp&, const complex<_Up>&)'
 2474 |     pow(const _Tp& __x, const std::complex<_Up>& __y)
      |     ^~~
/usr/include/c++/14/complex:2474:5: note:   template argument deduction/substitution failed:
a.cc:12:26: note:   'std::vector<int>' is not derived from 'const std::complex<_Up>'
   12 |   vector<vector<int>> pow(b,vector<int>(2));
      |                       ~~~^~~~~~~~~~~~~~~~~~
/usr/include/c++/14/complex:2466:5: note: candidate: 'template<class _Tp, class _Up> std::complex<typename __gnu_cxx::__promote<decltype (((typename __gnu_cxx::__promote<_Tp, std::__is_integer<_Tp>::__value>::__type)(0) + (typename __gnu_cxx::__promote<_Up, std::__is_integer<_Up>::__value>::__type)(0)))>::__type> std::pow(const complex<_Tp>&, const _Up&)'
 2466 |     pow(const std::complex<_Tp>& __x, const _Up& __y)
      |     ^~~
/usr/include/c++/14/complex:2466:5: note:   template argument deduction/substitution failed:
a.cc:12:26: note:   mismatched types 'const std::complex<_Tp>' and 'int'
   12 |   vector<vector<int>> pow(b,vector<int>(2));
      |                       ~~~^~~~~~~~~~~~~~~~~~
/usr/include/c++/14/complex:1339:5: note: candidate: 'template<class _Tp> std::complex<_Tp> std::pow(const _Tp&, const complex<_Tp>&)'
 1339 |     pow(const _Tp& __x, const complex<_Tp>& __y)
      |     ^~~
/usr/include/c++/14/complex:1339:5: note:   template argument deduction/substitution failed:
a.cc:12:26: note:   'std::vector<int>' is not derived from 'const std::complex<_Tp>'
   12 |   vector<vector<int>> pow(b,vector<int>(2));
      |                       ~~~^~~~~~~~~~~~~~~~~~
/usr/include/c++/14/complex:1328:5: note: candidate: 'template<class _Tp> std::complex<_Tp> std::pow(const complex<_Tp>&, const complex<_Tp>&)'
 1328 |     pow(const complex<_Tp>& __x, const complex<_Tp>& __y)
      |     ^~~
/usr/include/c++/14/complex:1328:5: note:   template argument deduction/substitution failed:
a.cc:12:26: note:   mismatched types 'const std::complex<_Tp>' and 'int'
   12 |   vector<vector<int>> pow(b,vector<int>(2));
      |                       ~~~^~~~~~~~~~~~~~~~~~
/usr/include/c++/14/complex:1294:5: note: candidate: 'template<class _Tp> std::complex<_Tp> std::pow(const complex<_Tp>&, const _Tp&)'
 1294 |     pow(const complex<_Tp>& __x, const _Tp& __y)
      |     ^~~
/usr/include/c++/14/complex:1294:5: note:   template argument deduction/substitution failed:
a.cc:12:26: note