結果

問題 No.1578 A × B × C
ユーザー kenichi
提出日時 2023-09-24 18:07:37
言語 Rust
(1.83.0 + proconio)
結果
AC  
実行時間 1 ms / 2,000 ms
コード長 5,418 bytes
コンパイル時間 12,930 ms
コンパイル使用メモリ 401,668 KB
実行使用メモリ 6,944 KB
最終ジャッジ日時 2024-07-17 18:59:57
合計ジャッジ時間 14,074 ms
ジャッジサーバーID
(参考情報)
judge4 / judge3
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 3
other AC * 22
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

use std::io::*;
use std::str::FromStr;
/*
const LOW_CASE_ALPHABET: [char; 26] = [
'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's',
't', 'u', 'v', 'w', 'x', 'y', 'z',
];
*/
fn main() {
let a: usize = read();
let b: usize = read();
let c: usize = read();
let k: usize = read();
let my_mod = 1000000007;
let tmp = ((a * b) % my_mod) * c % my_mod;
print!("{}",mod_pow(tmp as u64, mod_pow(2,k as u64,my_mod as u64 - 1),my_mod as u64));
}
pub fn mod_pow(mut base: u64, mut exp: u64, modulus: u64) -> u64{
let mut result = 1;
while exp > 0{
if exp % 2 == 1{
result = result * base % modulus;
}
base = base * base % modulus;
exp >>= 1;
}
result
}
/*
pub fn perfect(value_1: usize) -> usize {
let mut perfect_number = Vec::new();
let mut tmp_1 = 0;
for _i in 2..=value_1 {
let mut tmp = 0;
for _j in 1..=((_i as f64).powf(0.5)) as usize {
if _i % _j == 0 {
if _j * _j == _i {
tmp += _j;
} else {
tmp += _j + (_i / _j);
}
}
}
tmp -= _i;
if tmp == _i {
perfect_number.push(_i);
}
}
for _i in &perfect_number{
if tmp_1 == perfect_number.len() - 1{
break;
}
println!("{}", _i);
tmp_1 += 1;
}
perfect_number[perfect_number.len() - 1]
}
*/
/*
pub fn prime_number(value_1: usize, value_2: usize) -> usize {
let mut primary = Vec::new();
primary.push(2);
for _i in 2..=value_1 {
let mut flag = 0;
for _j in &primary {
if _i % _j == 0 {
flag = 1;
break;
}
}
if flag == 0 {
primary.push(_i);
}
if primary.len() == value_2 {
return primary[primary.len() - 1];
}
}
0
}
*/
pub fn ctoi(c: char) -> isize {
c as isize - '0' as isize
}
pub fn stoi(c: String) -> isize {
c.parse::<isize>().unwrap()
}
/*
pub fn find_char(sentence: Vec<char>, target: char, start: isize) -> isize {
for _i in start as usize..sentence.len() {
if sentence[_i] == target {
return _i as isize;
}
}
-1
}
*/
pub fn hex_to_binary_2(hex_string: String, x: u32) -> Option<String> {
match i64::from_str_radix(&hex_string, x) {
Ok(decimal) => Some(format!("{}", decimal)),
Err(_) => None,
}
}
/*
pub fn hex_to_binary(hex_string: &str, x: u32) -> Option<String> {
match i64::from_str_radix(hex_string, x) {
Ok(decimal) => Some(format!("{}", decimal)),
Err(_) => None,
}
}
*/
/*
pub fn my_floor(x: f64) -> f64 {
(x * 1000.0).floor() / 1000.0
}
*/
/*
pub fn upper_lower(x: char) -> char {
let result: char;
if x.is_uppercase() {
result = x.to_ascii_lowercase();
} else if x.is_lowercase() {
result = x.to_ascii_uppercase();
} else {
result = x;
}
result
}
*/
/*
pub fn maxf_2(x: f64, y: f64) -> f64 {
if x >= y {
x
} else {
y
}
}
*/
/*
pub fn max_2(x: isize, y: isize) -> isize {
if x >= y {
x
} else {
y
}
}
*/
pub fn max_u_2(x: usize, y: usize) -> usize {
if x >= y {
x
} else {
y
}
}
/*
pub fn min_2(x: isize, y: isize) -> isize {
if x >= y {
y
} else {
x
}
}
*/
pub fn min_u_2(x: usize, y: usize) -> usize {
if x >= y {
y
} else {
x
}
}
/*
pub fn max_3(x: isize, y: isize, z: isize) -> isize {
if (x >= y && y >= z) || (x >= z && z >= y){
x
} else if (y >= x && x >= z) || (y >= z && z >= x) {
y
} else {
z
}
}
*/
/*
pub fn max_u_3(x: usize, y: usize, z: usize) -> usize {
if (x >= y && y >= z) || (x >= z && z >= y){
x
} else if (y >= x && x >= z) || (y >= z && z >= x) {
y
} else {
z
}
}
*/
/*
pub fn min_3(x: isize, y: isize, z: isize) -> isize {
if (x <= y && y <= z) || (x <= z && z <= y){
x
} else if (y <= x && x <= z) || (y <= z && z <= x) {
y
} else {
z
}
}
*/
/*
pub fn min_u_3(x: usize, y: usize, z: usize) -> usize {
if (x <= y && y <= z) || (x <= z && z <= y){
x
} else if (y <= x && x <= z) || (y <= z && z <= x) {
y
} else {
z
}
}
*/
pub fn read_text() -> String {
let mut word = String::new();
std::io::stdin().read_line(&mut word).ok();
let answer = word.trim().to_string();
answer
}
pub fn read_array() -> Vec<char> {
let array: String = read();
let chars: Vec<char> = array.trim().chars().collect::<Vec<char>>();
chars
}
pub fn read<T: FromStr>() -> T {
let stdin = stdin();
let stdin = stdin.lock();
let token: String = stdin
.bytes()
.map(|c| c.expect("failed to read char") as char)
.skip_while(|c| c.is_whitespace())
.take_while(|c| !c.is_whitespace())
.collect();
token.parse().ok().expect("failed to parse token")
}
pub fn read_line<T: FromStr>() -> String {
let stdin = stdin();
let stdin = stdin.lock();
stdin
.lines()
.next()
.expect("No line in the input")
.expect("Failed to read line")
}
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