Submission #144977

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
144977	2019-08-18T10:11:47 Z	emilem	Zagrade (COI17_zagrade)	C++14	Compilation error	0 ms	0 KB

zagrade

#include <algorithm>
#include <iostream>
#include <string>
#include <vector>
using namespace std;

long long ans;
int n;
int op, clos;
string path;
vector< vector<int> > nei;
string a;

void Chain(const string& a)
{
	vector<int> pref(a.length());
	for (int i = 0; i < pref.size(); ++i)
	{
		if (a[i] == '(') ++pref[i];
		else --pref[i];
		if (i) pref[i] += pref[i - 1];
	}
	vector<int> r(n, -1);
	for (int i = 0; i < n; ++i)
	{
		int minElem = pref[i];
		for (int j = i; j < n; ++j)
		{
			minElem = min(minElem, pref[j]);
			if (minElem - (i ? pref[i - 1] : 0) < 0)
				break;
			else
				r[i] = j;
		}
	}
	for (int i = 0; i <n; ++i)
		if (r[i] != -1)
			for (int j = i; j <= r; ++j)
				if (pref[j] == (i ? pref[i - 1] : 0))
					++ans;
}
void Dfs(int v, int par)
{
	if (op == clos && a[v] == ')')
		return;
	if (a[v] == ')') ++clos;
	else ++op;
	path += a[v];
	if (clos == op)
		++ans;
	for (int i = 0; i < nei[v].size(); ++i)
	{
		int to = nei[v][i];
		if (to == par) continue;
		Dfs(to, v);
	}
	path.pop_back();
	if (a[v] == ')') --clos;
	else --op;
}
int main()
{
	cin >> n;
	nei.resize(n);
	cin >> a;
	for (int i = 1; i < n; ++i)
	{
		int u, v;
		cin >> u >> v; --u; --v;
		nei[u].push_back(v);
		nei[v].push_back(u);
	}
	if (false/*n <= 1000*/)
	{
		for (int v = 0; v < n; ++v)
		{
			op = clos = 0;
			path = "";
			Dfs(v, -1);
		}
		cout << ans << endl;
		return 0;
	}
	else // Is a chain.
	{
		Chain(a);
		reverse(a.begin(), a.end());
		Chain(a);
		cout << ans << endl;

		char I;
		cin >> I;
	}

	char I;
	cin >> I;
}

Compilation message

zagrade.cpp: In function 'void Chain(const string&)':
zagrade.cpp:17:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < pref.size(); ++i)
                  ~~^~~~~~~~~~~~~
zagrade.cpp:38:22: error: no match for 'operator<=' (operand types are 'int' and 'std::vector<int>')
    for (int j = i; j <= r; ++j)
                    ~~^~~~
In file included from /usr/include/c++/7/utility:70:0,
                 from /usr/include/c++/7/algorithm:60,
                 from zagrade.cpp:1:
/usr/include/c++/7/bits/stl_pair.h:468:5: note: candidate: template<class _T1, class _T2> constexpr bool std::operator<=(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)
     operator<=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
     ^~~~~~~~
/usr/include/c++/7/bits/stl_pair.h:468:5: note:   template argument deduction/substitution failed:
zagrade.cpp:38:25: note:   mismatched types 'const std::pair<_T1, _T2>' and 'int'
    for (int j = i; j <= r; ++j)
                         ^
In file included from /usr/include/c++/7/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/7/algorithm:61,
                 from zagrade.cpp:1:
/usr/include/c++/7/bits/stl_iterator.h:323:5: note: candidate: template<class _Iterator> bool std::operator<=(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)
     operator<=(const reverse_iterator<_Iterator>& __x,
     ^~~~~~~~
/usr/include/c++/7/bits/stl_iterator.h:323:5: note:   template argument deduction/substitution failed:
zagrade.cpp:38:25: note:   mismatched types 'const std::reverse_iterator<_Iterator>' and 'int'
    for (int j = i; j <= r; ++j)
                         ^
In file included from /usr/include/c++/7/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/7/algorithm:61,
                 from zagrade.cpp:1:
/usr/include/c++/7/bits/stl_iterator.h:361:5: note: candidate: template<class _IteratorL, class _IteratorR> bool std::operator<=(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)
     operator<=(const reverse_iterator<_IteratorL>& __x,
     ^~~~~~~~
/usr/include/c++/7/bits/stl_iterator.h:361:5: note:   template argument deduction/substitution failed:
zagrade.cpp:38:25: note:   mismatched types 'const std::reverse_iterator<_Iterator>' and 'int'
    for (int j = i; j <= r; ++j)
                         ^
In file included from /usr/include/c++/7/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/7/algorithm:61,
                 from zagrade.cpp:1:
/usr/include/c++/7/bits/stl_iterator.h:1154:5: note: candidate: template<class _IteratorL, class _IteratorR> bool std::operator<=(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&)
     operator<=(const move_iterator<_IteratorL>& __x,
     ^~~~~~~~
/usr/include/c++/7/bits/stl_iterator.h:1154:5: note:   template argument deduction/substitution failed:
zagrade.cpp:38:25: note:   mismatched types 'const std::move_iterator<_IteratorL>' and 'int'
    for (int j = i; j <= r; ++j)
                         ^
In file included from /usr/include/c++/7/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/7/algorithm:61,
                 from zagrade.cpp:1:
/usr/include/c++/7/bits/stl_iterator.h:1160:5: note: candidate: template<class _Iterator> bool std::operator<=(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorL>&)
     operator<=(const move_iterator<_Iterator>& __x,
     ^~~~~~~~
/usr/include/c++/7/bits/stl_iterator.h:1160:5: note:   template argument deduction/substitution failed:
zagrade.cpp:38:25: note:   mismatched types 'const std::move_iterator<_IteratorL>' and 'int'
    for (int j = i; j <= r; ++j)
                         ^
In file included from /usr/include/c++/7/string:52:0,
                 from /usr/include/c++/7/bits/locale_classes.h:40,
                 from /usr/include/c++/7/bits/ios_base.h:41,
                 from /usr/include/c++/7/ios:42,
                 from /usr/include/c++/7/ostream:38,
                 from /usr/include/c++/7/iostream:39,
                 from zagrade.cpp:2:
/usr/include/c++/7/bits/basic_string.h:6158:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> bool std::operator<=(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
     operator<=(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
     ^~~~~~~~
/usr/include/c++/7/bits/basic_string.h:6158:5: note:   template argument deduction/substitution failed:
zagrade.cpp:38:25: note:   mismatched types 'const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>' and 'int'
    for (int j = i; j <= r; ++j)
                         ^
In file included from /usr/include/c++/7/string:52:0,
                 from /usr/include/c++/7/bits/locale_classes.h:40,
                 from /usr/include/c++/7/bits/ios_base.h:41,
                 from /usr/include/c++/7/ios:42,
                 from /usr/include/c++/7/ostream:38,
                 from /usr/include/c++/7/iostream:39,
                 from zagrade.cpp:2:
/usr/include/c++/7/bits/basic_string.h:6171:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> bool std::operator<=(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, const _CharT*)
     operator<=(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
     ^~~~~~~~
/usr/include/c++/7/bits/basic_string.h:6171:5: note:   template argument deduction/substitution failed:
zagrade.cpp:38:25: note:   mismatched types 'const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>' and 'int'
    for (int j = i; j <= r; ++j)
                         ^
In file included from /usr/include/c++/7/string:52:0,
                 from /usr/include/c++/7/bits/locale_classes.h:40,
                 from /usr/include/c++/7/bits/ios_base.h:41,
                 from /usr/include/c++/7/ios:42,
                 from /usr/include/c++/7/ostream:38,
                 from /usr/include/c++/7/iostream:39,
                 from zagrade.cpp:2:
/usr/include/c++/7/bits/basic_string.h:6183:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> bool std::operator<=(const _CharT*, const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
     operator<=(const _CharT* __lhs,
     ^~~~~~~~
/usr/include/c++/7/bits/basic_string.h:6183:5: note:   template argument deduction/substitution failed:
zagrade.cpp:38:25: note:   mismatched types 'const _CharT*' and 'int'
    for (int j = i; j <= r; ++j)
                         ^
In file included from /usr/include/c++/7/vector:64:0,
                 from zagrade.cpp:4:
/usr/include/c++/7/bits/stl_vector.h:1632:5: note: candidate: template<class _Tp, class _Alloc> bool std::operator<=(const std::vector<_Tp, _Alloc>&, const std::vector<_Tp, _Alloc>&)
     operator<=(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
     ^~~~~~~~
/usr/include/c++/7/bits/stl_vector.h:1632:5: note:   template argument deduction/substitution failed:
zagrade.cpp:38:25: note:   mismatched types 'const std::vector<_Tp, _Alloc>' and 'int'
    for (int j = i; j <= r; ++j)
                         ^
In file included from /usr/include/c++/7/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/7/algorithm:61,
                 from zagrade.cpp:1:
/usr/include/c++/7/bits/stl_iterator.h:923:5: note: candidate: template<class _Iterator, class _Container> bool __gnu_cxx::operator<=(const __gnu_cxx::__normal_iterator<_Iterator, _Container>&, const __gnu_cxx::__normal_iterator<_Iterator, _Container>&)
     operator<=(const __normal_iterator<_Iterator, _Container>& __lhs,
     ^~~~~~~~
/usr/include/c++/7/bits/stl_iterator.h:923:5: note:   template argument deduction/substitution failed:
zagrade.cpp:38:25: note:   mismatched types 'const __gnu_cxx::__normal_iterator<_Iterator, _Container>' and 'int'
    for (int j = i; j <= r; ++j)
                         ^
In file included from /usr/include/c++/7/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/7/algorithm:61,
                 from zagrade.cpp:1:
/usr/include/c++/7/bits/stl_iterator.h:916:5: note: candidate: template<class _IteratorL, class _IteratorR, class _Container> bool __gnu_cxx::operator<=(const __gnu_cxx::__normal_iterator<_IteratorL, _Container>&, const __gnu_cxx::__normal_iterator<_IteratorR, _Container>&)
     operator<=(const __normal_iterator<_IteratorL, _Container>& __lhs,
     ^~~~~~~~
/usr/include/c++/7/bits/stl_iterator.h:916:5: note:   template argument deduction/substitution failed:
zagrade.cpp:38:25: note:   mismatched types 'const __gnu_cxx::__normal_iterator<_IteratorL, _Container>' and 'int'
    for (int j = i; j <= r; ++j)
                         ^
zagrade.cpp: In function 'void Dfs(int, int)':
zagrade.cpp:51:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < nei[v].size(); ++i)
                  ~~^~~~~~~~~~~~~~~