cp-library
This documentation is automatically generated by online-judge-tools/verification-helper
test/aplusb.test.cpp
- View this file on GitHub
- Last update: 2025-11-07 09:14:02+08:00
- Problem: https://judge.yosupo.jp/problem/aplusb
Depends on
Code
#define PROBLEM "https://judge.yosupo.jp/problem/aplusb"
#include "../weilycoder/fast-io.hpp"
using namespace weilycoder;
static FastIOMMap<true> io;
int main() {
uint64_t a = io.read_u64();
uint64_t b = io.read_u64();
io.write_u64_line(a + b);
return 0;
}#line 1 "test/aplusb.test.cpp"
#define PROBLEM "https://judge.yosupo.jp/problem/aplusb"
#line 1 "weilycoder/fast-io.hpp"
/**
* @file fast-io.hpp
* @brief Fast Input/Output Utilities
*/
#include <cstddef>
#include <cstdint>
#include <cstdio>
#include <limits>
#if defined(__linux__) || defined(__unix__) || defined(__APPLE__)
#include <sys/mman.h>
#include <sys/stat.h>
#include <unistd.h>
#endif
namespace weilycoder {
#if defined(__linux__) || defined(__unix__) || defined(__APPLE__)
/**
* @brief Fast Reader using Memory-Mapped I/O
*/
struct FastReadMMap {
size_t file_size;
char *data, *pos;
FastReadMMap(const FastReadMMap &) = delete;
FastReadMMap &operator=(const FastReadMMap &) = delete;
/**
* @brief Constructs a FastReadMMap object and memory-maps stdin.
* If mapping fails, sets file_size to max size_t.
*/
FastReadMMap() {
struct stat st;
if (fstat(0, &st) != 0) {
file_size = std::numeric_limits<size_t>::max();
return;
}
file_size = st.st_size;
data = reinterpret_cast<char *>(
mmap(nullptr, file_size, PROT_READ, MAP_PRIVATE, 0, 0));
pos = data;
}
/**
* @brief Destructor that unmaps the memory-mapped file.
*/
~FastReadMMap() {
if (file_size != std::numeric_limits<size_t>::max())
munmap(data, file_size);
}
/**
* @brief Gets the next character from the memory-mapped input.
* @return The next character, or EOF if the end of the file is reached.
*/
inline char getchar() {
return static_cast<size_t>(pos - data) < file_size ? *pos++ : EOF;
}
/**
* @brief Alias for getchar().
* @return The next character from input.
*/
inline char operator()() { return getchar(); }
};
#endif
/**
* @brief Fast Reader using fread
* @tparam buffer_size Size of the internal buffer (default: 1 MB)
*/
template <size_t buffer_size = 1 << 20> struct FastReadFRead {
char buf[buffer_size], *pos = buf, *end = buf;
FastReadFRead() = default;
FastReadFRead(const FastReadFRead &) = delete;
FastReadFRead &operator=(const FastReadFRead &) = delete;
/**
* @brief Gets the next character from input using buffered fread.
* @return The next character, or EOF if the end of the file is reached.
*/
inline char getchar() {
return pos == end && (end = (pos = buf) + fread(buf, 1, buffer_size, stdin),
pos == end)
? EOF
: *pos++;
}
/**
* @brief Clears the internal buffer.
*/
inline void clear() { pos = end = buf; }
/**
* @brief Reopens the input stream by clearing the buffer
* and seeking to the beginning.
*/
inline void reopen() { clear(), fseek(stdin, 0, SEEK_SET); }
/**
* @brief Alias for getchar().
* @return The next character from input.
*/
inline char operator()() { return getchar(); }
};
/**
* @brief Fast Writer using fwrite
* @tparam buffer_size Size of the internal buffer (default: 1 MB)
*/
template <size_t buffer_size = 1 << 20> struct FastWriteFWrite {
char buf[buffer_size], *pos = buf;
FastWriteFWrite() = default;
~FastWriteFWrite() { flush(); }
FastWriteFWrite(const FastWriteFWrite &) = delete;
FastWriteFWrite &operator=(const FastWriteFWrite &) = delete;
/**
* @brief Puts a character into the output buffer.
* Flushes the buffer if it is full.
* @param c Character to put into the buffer.
*/
inline void putchar(char c) {
if (pos - buf == buffer_size)
flush();
*pos++ = c;
}
/**
* @brief Flushes the output buffer to stdout.
*/
inline void flush() {
size_t write_size = pos - buf;
if (write_size) {
fwrite(buf, 1, write_size, stdout);
pos = buf;
}
}
/**
* @brief Alias for putchar().
* @param c Character to put into the buffer.
*/
inline void operator()(char c) { putchar(c); }
};
/**
* @brief Fast Input/Output handler combining a Reader and a Writer.
* @tparam Reader Type of the input reader.
* @tparam Writer Type of the output writer.
* @tparam debug If true, uses standard I/O functions for debugging.
*/
template <typename Reader, typename Writer, bool debug = false> struct FastIO {
Reader reader;
Writer writer;
FastIO() = default;
FastIO(const FastIO &) = delete;
FastIO &operator=(const FastIO &) = delete;
/**
* @brief Gets the next character from input.
* @return The next character from input.
*/
inline char getchar() {
if constexpr (debug)
return std::getchar();
else
return reader.getchar();
}
/**
* @brief Puts a character into output.
* @param c Character to put into output.
*/
inline void putchar(char c) {
if constexpr (debug)
std::putchar(c), std::fflush(stdout);
else
writer.putchar(c);
}
/**
* @brief Flushes the output buffer.
*/
inline void flush() { writer.flush(); }
/**
* @brief Computes the absolute value of a 32-bit integer.
* @param x The integer to compute the absolute value for.
* @return The absolute value of x.
*/
static int32_t abs(int32_t x) { return x >= 0 ? x : -x; }
/**
* @brief Reads an unsigned integer of type utype from input.
* @tparam utype Unsigned integer type to read.
* @return The read unsigned integer.
*/
template <typename utype> inline utype _read_u() {
char c;
do
c = getchar();
while (c < '0' || c > '9');
utype x = 0;
do
x = x * 10 + (c - '0'), c = getchar();
while (c >= '0' && c <= '9');
return x;
}
/**
* @brief Reads a signed integer of type itype from input.
* @tparam itype Signed integer type to read.
* @tparam utype Unsigned integer type used for intermediate calculations,
* should be the corresponding unsigned type of itype.
* @return The read signed integer.
*/
template <typename itype, typename utype> inline itype _read_i() {
char c;
bool neg = false;
do
if ((c = getchar()) == '-')
neg = true;
while ((c < '0' || c > '9'));
utype x = 0;
do
x = x * 10 + (c - '0'), c = getchar();
while (c >= '0' && c <= '9');
return static_cast<itype>(neg ? -x : x);
}
/**
* @brief Writes an unsigned integer of type utype to output.
* @tparam utype Unsigned integer type to write.
* @tparam bufsize Size of the internal buffer used for conversion.
* @param x The unsigned integer to write.
*/
template <typename utype, size_t bufsize> inline void _write_u(utype x) {
static char buf[bufsize];
size_t len = 0;
do
buf[len++] = '0' + (x % 10), x /= 10;
while (x);
for (size_t i = len - 1; ~i; --i)
putchar(buf[i]);
}
/**
* @brief Writes a signed integer of type itype to output.
* @tparam itype Signed integer type to write.
* @tparam bufsize Size of the internal buffer used for conversion.
* @param x The signed integer to write.
*/
template <typename itype, size_t bufsize> inline void _write_i(itype x) {
bool neg = x < 0;
static char buf[bufsize];
size_t len = 0;
do
buf[len++] = '0' + this->abs(x % 10), x /= 10;
while (x);
if (neg)
putchar('-');
for (size_t i = len - 1; ~i; --i)
putchar(buf[i]);
}
/**
* @brief Reads a signed 32-bit integer from input.
* @return The read signed 32-bit integer.
*/
inline int32_t read_i32() { return _read_i<int32_t, uint32_t>(); }
/**
* @brief Reads an unsigned 32-bit integer from input.
* @return The read unsigned 32-bit integer.
*/
inline uint32_t read_u32() { return _read_u<uint32_t>(); }
/**
* @brief Writes a signed 32-bit integer to output.
* @param x The signed 32-bit integer to write.
*/
inline void write_i32(int32_t x) { _write_i<int32_t, 10>(x); }
/**
* @brief Writes an unsigned 32-bit integer to output.
* @param x The unsigned 32-bit integer to write.
*/
inline void write_u32(uint32_t x) { _write_u<uint32_t, 10>(x); }
/**
* @brief Reads a signed 64-bit integer from input.
* @return The read signed 64-bit integer.
*/
inline int64_t read_i64() { return _read_i<int64_t, uint64_t>(); }
/**
* @brief Reads an unsigned 64-bit integer from input.
* @return The read unsigned 64-bit integer.
*/
inline uint64_t read_u64() { return _read_u<uint64_t>(); }
/**
* @brief Writes a signed 64-bit integer to output.
* @param x The signed 64-bit integer to write.
*/
inline void write_i64(int64_t x) { _write_i<int64_t, 20>(x); }
/**
* @brief Writes an unsigned 64-bit integer to output.
* @param x The unsigned 64-bit integer to write.
*/
inline void write_u64(uint64_t x) { _write_u<uint64_t, 20>(x); }
/**
* @brief Reads a signed 128-bit integer from input.
* @return The read signed 128-bit integer.
*/
inline __int128 read_i128() { return _read_i<__int128, unsigned __int128>(); }
/**
* @brief Reads an unsigned 128-bit integer from input.
* @return The read unsigned 128-bit integer.
*/
inline unsigned __int128 read_u128() { return _read_u<unsigned __int128>(); }
/**
* @brief Writes a signed 128-bit integer to output.
* @param x The signed 128-bit integer to write.
*/
inline void write_i128(__int128 x) { _write_i<__int128, 40>(x); }
/**
* @brief Writes an unsigned 128-bit integer to output.
* @param x The unsigned 128-bit integer to write.
*/
inline void write_u128(unsigned __int128 x) {
_write_u<unsigned __int128, 40>(x);
}
inline void write_i32_line(int32_t x) { write_i32(x), putchar('\n'); }
inline void write_u32_line(uint32_t x) { write_u32(x), putchar('\n'); }
inline void write_i64_line(int64_t x) { write_i64(x), putchar('\n'); }
inline void write_u64_line(uint64_t x) { write_u64(x), putchar('\n'); }
inline void write_i128_line(__int128 x) { write_i128(x), putchar('\n'); }
inline void write_u128_line(unsigned __int128 x) {
write_u128(x), putchar('\n');
}
};
#if defined(__linux__) || defined(__unix__) || defined(__APPLE__)
template <bool debug = false>
using FastIOMMap = FastIO<FastReadMMap, FastWriteFWrite<>, debug>;
#endif
template <bool debug = false>
using FastIOFile = FastIO<FastReadFRead<>, FastWriteFWrite<>, debug>;
} // namespace weilycoder
#line 4 "test/aplusb.test.cpp"
using namespace weilycoder;
static FastIOMMap<true> io;
int main() {
uint64_t a = io.read_u64();
uint64_t b = io.read_u64();
io.write_u64_line(a + b);
return 0;
}