//Thanks for the lesson from Kirito, '\n' over std::endl, except some edge cases(interactive question)

ios_base::sync_with_stdio(false);
cin.tie(nullptr);

//MACRO flag to detect if on DMOJ, credit to Wesley

#ifdef ONLINE_JUDGE
//do something


#endif

//Fast IO alternative than DMOJ's scan, requires C++20+

//not portable
#if defined _WIN32 || defined _WIN64
inline char getchar_unlocked() { return static_cast<char>(_getchar_nolock()); }
#endif

template <std::signed_integral T>
T Read()
{
    T x; bool neg = false; char c{};
    do { c = getchar_unlocked(); if (c == '-') neg = true; } while (c < '0');
    for (x = c - '0'; '0' <= (c = getchar_unlocked()); x = (x << 3) + (x << 1) + c - '0') {}
    return neg ? -x : x;
}

template <std::unsigned_integral T>
T Read()
{
    T x; char c{};
    do { c = getchar_unlocked(); } while (c < '0');
    for (x = c - '0'; '0' <= (c = getchar_unlocked()); x = (x << 3) + (x << 1) + c - '0');
    return x;
}

//some temporary variable names

srce     (source)
dest     (destination)
first, last   (denote range [a, b) )
begin,  end     (denote range [a, b)  )
i, j, k         (index for nested loops)
temp   (swapping variable)
prev, curr, next(nxt) (holding objects/variables)
arr  (acronym of array)
vec  (vector)
lst, ls   (list)
mp   (map, hashmap)
addr   (address)
ptr  (pointer)
fn  (function)

Points:

Dec. 4, 2020, First 10 points question.

Jan. 8, 2021, Took over Tyler with 0.? points.

Jan. 12, 2021, First 12 points question.

Jan. 15, 2021, First 15 points question. (thx Balint for the free 15 points)

Mar. 17, 2021, DMOJ avalanche (dropped from 300 points to 270)

Feb. 26, 2022, Back to 300 Points

Rating:

March 14, 2019, 4:00 p.m. Green Rating

January 25, 2021, 4:59 a.m. Blue Rating

Todo List:

Quine https://dmoj.ca/problem/quine

Difference Sorting https://dmoj.ca/problem/wac6p3

Bowling for Numbers https://dmoj.ca/problem/ccc07s5

Wireless https://dmoj.ca/problem/ccc09s5 Prefix to Postfix https://dmoj.ca/problem/ccc08j4