結果

問題 No.2324 Two Countries within UEC
ユーザー kenichikenichi
提出日時 2023-07-14 18:36:20
言語 Rust
(1.77.0)
結果
AC  
実行時間 234 ms / 2,000 ms
コード長 6,645 bytes
コンパイル時間 1,517 ms
コンパイル使用メモリ 145,348 KB
実行使用メモリ 4,376 KB
最終ジャッジ日時 2023-10-14 08:24:58
合計ジャッジ時間 8,823 ms
ジャッジサーバーID
（参考情報） 		judge15 / judge14
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 221 ms
4,352 KB
testcase_01 AC 234 ms
4,372 KB
testcase_02 AC 42 ms
4,376 KB
testcase_03 AC 172 ms
4,372 KB
testcase_04 AC 206 ms
4,376 KB
testcase_05 AC 45 ms
4,376 KB
testcase_06 AC 78 ms
4,372 KB
testcase_07 AC 37 ms
4,376 KB
testcase_08 AC 167 ms
4,376 KB
testcase_09 AC 175 ms
4,372 KB
testcase_10 AC 234 ms
4,376 KB
testcase_11 AC 224 ms
4,372 KB
testcase_12 AC 71 ms
4,376 KB
testcase_13 AC 68 ms
4,372 KB
testcase_14 AC 42 ms
4,372 KB
testcase_15 AC 36 ms
4,372 KB
testcase_16 AC 155 ms
4,372 KB
testcase_17 AC 101 ms
4,372 KB
testcase_18 AC 46 ms
4,376 KB
testcase_19 AC 230 ms
4,372 KB
testcase_20 AC 30 ms
4,376 KB
testcase_21 AC 141 ms
4,376 KB
testcase_22 AC 190 ms
4,372 KB
testcase_23 AC 57 ms
4,372 KB
testcase_24 AC 152 ms
4,376 KB
testcase_25 AC 231 ms
4,372 KB
testcase_26 AC 170 ms
4,372 KB
testcase_27 AC 176 ms
4,372 KB
testcase_28 AC 168 ms
4,372 KB
testcase_29 AC 164 ms
4,376 KB
testcase_30 AC 169 ms
4,376 KB
testcase_31 AC 1 ms
4,372 KB
testcase_32 AC 1 ms
4,372 KB
testcase_33 AC 1 ms
4,372 KB
testcase_34 AC 1 ms
4,376 KB
testcase_35 AC 1 ms
4,376 KB
testcase_36 AC 1 ms
4,376 KB
testcase_37 AC 1 ms
4,376 KB
testcase_38 AC 1 ms
4,372 KB
testcase_39 AC 1 ms
4,376 KB
testcase_40 AC 2 ms
4,372 KB
testcase_41 AC 1 ms
4,372 KB
testcase_42 AC 1 ms
4,376 KB
権限があれば一括ダウンロードができます
コンパイルメッセージ
warning: unused variable: `n`
  --> Main.rs:47:9
   |
47 |     let n: u64 = read();
   |         ^ help: if this is intentional, prefix it with an underscore: `_n`
   |
   = note: `#[warn(unused_variables)]` on by default

warning: 1 warning emitted

ソースコード

diff # 

use std::io::*;
use std::str::FromStr;
/*
//use std::num;
//use std::cmp;
//use std::collections::VecDeque;
//use std::io::{self, BufRead};
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 modpow(mut a: u64, mut n: u64, p: u64) -> u64{
    let mut res: u64 = 1;
    while n > 0{
        if n % 2 > 0{
            res = res * a % p;
        }
        n /= 2;
        a = a * a % p;
    }

    res
}

/*
fn modpow(mut a:u64, mut n:u64, p:u64) -> u64 {
    let mut res: u64 = 1;
	loop{
        if n <= 0{
            break;
        }else{
            n /= 2;
            a = a * a % p;
        }
        if n % 2 > 0{
            res = res * a % p;
        }
    }

    return res;
}
*/
fn main(){
    let n: u64 = read();
    let m: u64 = read();
    let p: u64 = read();
    let mut q: u64 = read();
    let mut y;
    let mut ans;

    loop{
        if q <= 0{
            break;
        }
        let x: u64 = read();
        let f: u64 = read();
        if x % p == 0{
            if f == 0{
                ans = m;
            }else{
                ans = 0;
            }
        }else{
            y = f * modpow(x, p - 2, p) % p;
            ans = m / p;
            if y <= m % p && y != 0{
                ans += 1;
            }
        }
        println!("{}",ans);
        q -= 1;
    }
}

/*
let mut temp = String::new();
    std::io::stdin().read_line(&mut temp).ok();
    let temp = temp
        .trim()
        .chars()
        .map(|c| c as usize - '0' as usize)
        .collect::<Vec<_>>();

    let mut iter = temp.iter(); // イテレータを取得

    let a: isize = *iter.next().unwrap() as isize;
    let b: isize = *iter.next().unwrap() as isize;
    let c: isize = *iter.next().unwrap() as isize;

*/

pub fn quicksort(numbers: &mut Vec<u64>) {
    if numbers.len() <= 1 {
        return;
    }

    let pivot = numbers.pop().unwrap();
    let mut lesser = Vec::new();
    let mut greater = Vec::new();

    for num in numbers.iter() {
        if *num >= pivot {
            lesser.push(*num);
        } else {
            greater.push(*num);
        }
    }

    quicksort(&mut lesser);
    quicksort(&mut greater);

    numbers.clear();
    numbers.extend(lesser);
    numbers.push(pivot);
    numbers.extend(greater);
}

pub fn is_leap_year(year: isize) -> bool {
    if ((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0) {
        return true;
    } else {
        return false;
    }
}

pub fn ctoi(c: char) -> isize {
    let n = c as isize - '0' as isize;

    return n;
}

pub fn stoi(c: String) -> isize {
    let n = c.parse::<isize>().unwrap();

    return n;
}

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;
        }
    }
    return -1;
}

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 {
    let rounded = (x * 1000.0).floor() / 1000.0;

    rounded
}

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 {
    let result;

    if x >= y {
        result = x;
    } else {
        result = y;
    }

    result
}

pub fn max_2(x: isize, y: isize) -> isize {
    let result;

    if x >= y {
        result = x;
    } else {
        result = y;
    }

    result
}

pub fn max_u_2(x: usize, y: usize) -> usize {
    let result;

    if x >= y {
        result = x;
    } else {
        result = y;
    }

    result
}

pub fn min_u_2(x: usize, y: usize) -> usize {
    let result;

    if x <= y {
        result = x;
    } else {
        result = y;
    }

    result
}

pub fn min_2(x: isize, y: isize) -> isize {
    let result;

    if x >= y {
        result = y;
    } else {
        result = x;
    }

    result
}

pub fn min_2_i32(x: i32, y: i32) -> i32 {
    let result;

    if x >= y {
        result = y;
    } else {
        result = x;
    }

    result
}

pub fn max_3(x: isize, y: isize, z: isize) -> isize {
    let result;
    if x >= y && y >= z {
        result = x;
    } else if x >= z && z >= y {
        result = x;
    } else if y >= x && x >= z {
        result = y;
    } else if y >= z && z >= x {
        result = y;
    } else if z >= x && x >= y {
        result = z;
    } else {
        result = z;
    }

    result
}

pub fn max_u_3(x: usize, y: usize, z: usize) -> usize {
    let result;
    if x >= y && y >= z {
        result = x;
    } else if x >= z && z >= y {
        result = x;
    } else if y >= x && x >= z {
        result = y;
    } else if y >= z && z >= x {
        result = y;
    } else if z >= x && x >= y {
        result = z;
    } else {
        result = z;
    }

    result
}

pub fn min_3(x: isize, y: isize, z: isize) -> isize {
    let result;
    if x <= y && y <= z {
        result = x;
    } else if x <= z && z <= y {
        result = x;
    } else if y <= x && x <= z {
        result = y;
    } else if y <= z && z <= x {
        result = y;
    } else if z <= x && x <= y {
        result = z;
    } else {
        result = z;
    }

    result
}

pub fn min_u_3(x: usize, y: usize, z: usize) -> usize {
    let result;
    if x <= y && y <= z {
        result = x;
    } else if x <= z && z <= y {
        result = x;
    } else if y <= x && x <= z {
        result = y;
    } else if y <= z && z <= x {
        result = y;
    } else if z <= x && x <= y {
        result = z;
    } else {
        result = z;
    }

    result
}

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")
}
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