Language: C++


#include <iostream>
#include <iomanip> //! for setprecision(10)
#include <math.h>
#include <algorithm>
#include <functional> 
#include <string>
#include <vector>

#include <cstring>
#include <set>
#include <map>
#include <queue>
#include <utility>
#include <limits.h>

using namespace std;

typedef long long LL;

#define rep(i,n) for (int i = 0; i < (n); ++i)
#define dump(c) { for (auto it = c.begin(); it != c.end(); ++it) if (it == c.begin()) cout << *it; else cout << ' ' << *it; cout << endl; } 
#define dumpMap(m) { for (auto it: m) cout << it.first << "=>" << it.second << ' '; }

const int MOD = 1000000007;

int main()
{
    string s;
    cin >> s;

    LL ans = 0;
    int len = s.length();
    int i = 0;
    LL g = 0;
    LL l = 0;

    //! find ">>>>" on top, if any    
    while (i < len && s[i] == '>') {
        ++g;
        ++i;
    }
    ans += (g * (g+1)) / 2;

    //! find "<<<<<>>>>>" in the middle, or "<<<<" on tail, if any
    while (i < len) {
        g = 0;
        l = 0;
        while (i < len && s[i] == '<') {
            ++l;
            ++i;
        }
        while (i < len && s[i] == '>') {
            ++g;
            ++i;
        }
        if (g < l) {
            g = max(0, g-1);
        } else {
            l = max(0, l-1);
        }
        ans += (g * (g+1)) / 2;
        ans += (l * (l+1)) / 2;
    }

    cout << ans << endl;

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:58:20: error: no matching function for call to 'max(int, LL)'
   58 |             g = max(0, g-1);
      |                 ~~~^~~~~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:2:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:58:20: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'LL' {aka 'long long int'})
   58 |             g = max(0, g-1);
      |                 ~~~^~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61,
                 from a.cc:5:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:58:20: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   58 |             g = max(0, g-1);
      |                 ~~~^~~~~~~~
a.cc:60:20: error: no matching function for call to 'max(int, LL)'
   60 |             l = max(0, l-1);
      |                 ~~~^~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:60:20: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'LL' {aka 'long long int'})
   60 |             l = max(0, l-1);
      |                 ~~~^~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:60:20: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   60 |             l = max(0, l-1);
      |                 ~~~^~~~~~~~