高速標準入力
(utilities/reader.hpp)

• View this file on GitHub
• Last update: 2021-08-01 21:42:17+09:00
• Include: #include "utilities/reader.hpp"

std::cin より高速な標準入力．

int n = rdi();
long long m = rdll();
string s = rdstr();

Verified with

• data_structure/test/radix_heap.dijkstra.test.cpp
• data_structure/test/radix_heap_array.dijkstra.test.cpp
• flow/test/maxflow.pushrelabel.yuki957.test.cpp
• linear_algebra_matrix/test/matrix_product.test.cpp
• string/test/sa_count_keyword.reader.test.cpp

Code

#pragma once
#include <cstdio>
#include <string>

// CUT begin
template <typename T> T rd_integer() {
    T ret = 0;
    bool minus = false;

    char c = getchar_unlocked();
    while (!isdigit(c)) minus |= (c == '-'), c = getchar_unlocked();
    while (isdigit(c)) ret = (ret << 1) + (ret << 3) + (c ^ 48), c = getchar_unlocked();

    return minus ? -ret : ret;
}
int rdi() { return rd_integer<int>(); }
long long rdll() { return rd_integer<long long>(); }
std::string rdstr() {
    std::string ret;
    char c = getchar_unlocked();
    while (!isgraph(c)) c = getchar_unlocked();
    while (isgraph(c)) ret += c, c = getchar_unlocked();
    return ret;
}

#line 2 "utilities/reader.hpp"
#include <cstdio>
#include <string>

// CUT begin
template <typename T> T rd_integer() {
    T ret = 0;
    bool minus = false;

    char c = getchar_unlocked();
    while (!isdigit(c)) minus |= (c == '-'), c = getchar_unlocked();
    while (isdigit(c)) ret = (ret << 1) + (ret << 3) + (c ^ 48), c = getchar_unlocked();

    return minus ? -ret : ret;
}
int rdi() { return rd_integer<int>(); }
long long rdll() { return rd_integer<long long>(); }
std::string rdstr() {
    std::string ret;
    char c = getchar_unlocked();
    while (!isgraph(c)) c = getchar_unlocked();
    while (isgraph(c)) ret += c, c = getchar_unlocked();
    return ret;
}

Back to top page