Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(i, n) for(int i = 0; i < (n); i++)
#define rep1(i, n) for(int i = 1; i <= (n); i++)
#define co(x) cout << (x) << "\n"
#define cosp(x) cout << (x) << " "
#define ce(x) cerr << (x) << "\n"
#define cesp(x) cerr << (x) << " "
#define Would
#define you
#define please

int main() {
	cin.tie(0);
	ios::sync_with_stdio(false);



	int N;
	cin >> N;
	int T[200] = {}, v[200] = {};

	rep1(i, N) {
		cin >> T[i];
		T[i] *= 2;
		T[i] += T[i - 1];
	}
	rep1(i, N) cin >> v[i];


	double V[50000];
	rep(i, 50000) V[i] = 100;

	rep(i, N) {
		for (int ii = T[i]; ii <= T[i + 1]; ii++) V[ii] = min(V[ii], v[i + 1]);
	}

	rep(i, N + 1) {
		for (int ii = T[i]; ii <= T[N]; ii++) {
			V[ii] = min(V[ii], 0.5 * (ii - T[i]) + v[i]);
		}
		for (int ii = T[i]; ii >= 0; ii--) {
			V[ii] = min(V[ii], 0.5 * (T[i] - ii) + v[i + 1]);
		}
	}

	double kotae = 0;
	rep(i, T[N]) kotae += V[i] / 2;

	//ええ・・・もしやcoutって実数だと上6桁くらいであきらめるの・・・？
	cout << fixed << kotae << endl;
	//これで小数点以下6桁？

	Would you please return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:36:70: error: no matching function for call to 'min(double&, int&)'
   36 |                 for (int ii = T[i]; ii <= T[i + 1]; ii++) V[ii] = min(V[ii], v[i + 1]);
      |                                                                   ~~~^~~~~~~~~~~~~~~~~
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:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
a.cc:36:70: note:   deduced conflicting types for parameter 'const _Tp' ('double' and 'int')
   36 |                 for (int ii = T[i]; ii <= T[i + 1]; ii++) V[ii] = min(V[ii], v[i + 1]);
      |                                                                   ~~~^~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: 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:5686:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note:   template argument deduction/substitution failed:
a.cc:36:70: note:   mismatched types 'std::initializer_list<_Tp>' and 'double'
   36 |                 for (int ii = T[i]; ii <= T[i + 1]; ii++) V[ii] = min(V[ii], v[i + 1]);
      |                                                                   ~~~^~~~~~~~~~~~~~~~~