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aoc1607_abba.cpp
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/* ************************************************************************** */
/* */
/* \\ /`/`` */
/* ~\o o_ 0 0\ */
/* / \__) (u ); _ _ */
/* / \/ \/ / \ \/ \/ \ */
/* /( . . ) ( )\ */
/* / \_____/ \_______/ \ */
/* [] [] [[] [[] *. */
/* []] []] [[] [[] */
/* */
/* ****************************************************************** nuo *** */
#include "iostream"
#include "sstream"
#include "vector"
// DRIVE
int subset_abba_checker(std::string s, int L, int R);
int subset_xxxx_checker(std::string s, int L, int R);
int slen(std::string s);
int main()
{
int count_TLS;
int count_SSL;
std::string s;
count_SSL = count_TLS = 0;
while (std::cin >> s)
{
std::vector<std::string> arr_outer;
std::vector<std::string> arr_inner;
int should_have_none;
int should_have_some;
int has_SSL;
int i, j, x;
i = j = 0;
should_have_none = 0;
should_have_some = 0;
while (s[i])
{
j = i + 1;
while (s[j])
{
if (!s[j + 1])
{
if (subset_xxxx_checker(s, i, j)) should_have_none++;
if (subset_abba_checker(s, i, j)) should_have_some++;
x = i;
while (x + 1 < j)
{
if (s[x] == s[x + 2])
{
std::string temp;
temp += s[x];
temp += s[x + 1];
temp += s[x];
arr_outer.push_back(temp);
}
x++;
}
i = j;
break;
}
if (s[j + 1] == '[')
{
if (subset_xxxx_checker(s, i, j)) should_have_none++;
if (subset_abba_checker(s, i, j)) should_have_some++;
x = i;
while (x + 1 < j)
{
if (s[x] == s[x + 2])
{
std::string temp;
temp += s[x];
temp += s[x + 1];
temp += s[x];
arr_outer.push_back(temp);
}
x++;
}
i = j + 2;
}
if (s[j + 1] == ']')
{
if (subset_abba_checker(s, i, j)) should_have_none++;
x = i;
while (x + 1 < j)
{
if (s[x] == s[x + 2])
{
std::string temp;
temp += s[x + 1];
temp += s[x];
temp += s[x + 1];
arr_inner.push_back(temp);
}
x++;
}
i = j + 2;
}
j++;
}
i++;
}
has_SSL = i = 0;
while (i < (int) arr_outer.size() && !has_SSL)
{
j = 0;
while (j < (int) arr_inner.size() && !has_SSL)
{
if (arr_outer[i] == arr_inner[j])
{
has_SSL++;
break;
}
j++;
}
i++;
}
if (!should_have_none && should_have_some) count_TLS++;
if (has_SSL) count_SSL++;
}
std::cout << "Star 1 : " << count_TLS << std::endl;
std::cout << "Star 2 : " << count_SSL << std::endl;
return (0);
}
//
int subset_xxxx_checker(std::string s, int L, int R)
{
if (R - L < 3) return (0);
while (L < R - 2)
{
if (s[L] == s[L + 1] && s[L] == s[L + 2] && s[L] == s[L + 3])
return (1);
L++;
}
return (0);
}
int subset_abba_checker(std::string s, int L, int R)
{
if (R - L < 3) return (0);
while (L < R - 2)
{
if (s[L] == s[L + 3] && s[L + 1] == s[L + 2])
return (1);
L++;
}
return (0);
}
int slen(std::string s)
{
int i = 0;
while (s[i]) i++;
return (i);
}