結果

問題 No.1441 MErGe
ユーザー KoD
提出日時 2021-03-26 21:35:42
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 733 ms / 1,000 ms
コード長 2,191 bytes
コンパイル時間 4,493 ms
コンパイル使用メモリ 258,148 KB
最終ジャッジ日時 2025-01-19 21:59:30
ジャッジサーバーID
(参考情報)
judge4 / judge5
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 2
other AC * 28
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

#line 1 "main.cpp"
#include <bits/extc++.h>
#line 4 "/Users/kodamankod/Desktop/CppProcon/Library/proconlib/utility/int_alias.cpp"
using i32 = std::int32_t;
using u32 = std::uint32_t;
using i64 = std::int64_t;
using u64 = std::uint64_t;
using i128 = __int128_t;
using u128 = __uint128_t;
using isize = std::ptrdiff_t;
using usize = std::size_t;
#line 4 "/Users/kodamankod/Desktop/CppProcon/Library/proconlib/utility/rep.cpp"
class rep {
struct Iter {
usize itr;
constexpr Iter(const usize pos) noexcept: itr(pos) { }
constexpr void operator ++ () noexcept { ++itr; }
constexpr bool operator != (const Iter& other) const noexcept { return itr != other.itr; }
constexpr usize operator * () const noexcept { return itr; }
};
const Iter first, last;
public:
explicit constexpr rep(const usize first, const usize last) noexcept: first(first), last(std::max(first, last)) { }
constexpr Iter begin() const noexcept { return first; }
constexpr Iter end() const noexcept { return last; }
};
#line 4 "main.cpp"
namespace extlib {
using namespace std;
using namespace __gnu_pbds;
template <class T>
using Tree = tree<T, null_type, std::less<T>, rb_tree_tag, tree_order_statistics_node_update>;
}
template <class T>
using Vec = std::vector<T>;
void E_main() {
usize N, Q;
std::cin >> N >> Q;
Vec<i64> A(N);
for (auto &x: A) {
std::cin >> x;
}
Vec<i64> sum(N + 1);
for (auto i: rep(0, N)) {
sum[i + 1] = sum[i] + A[i];
}
extlib::Tree<usize> idx;
for (auto i: rep(0, N + 1)) {
idx.insert(i);
}
while (Q--) {
usize t, l, r;
std::cin >> t >> l >> r;
l -= 1;
if (t == 1) {
auto itr = std::next(idx.find_by_order(l));
for (auto _: rep(l + 1, r)) {
itr = idx.erase(itr);
}
}
else {
l = *idx.find_by_order(l);
r = *idx.find_by_order(r);
std::cout << sum[r] - sum[l] << '\n';
}
}
return;
}
int main() {
std::ios_base::sync_with_stdio(false);
std::cin.tie(nullptr);
E_main();
return 0;
}
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