diff --git a/atcoder/abc341/b.rs b/atcoder/abc341/b.rs
new file mode 100644
index 00000000..ca14523f
--- /dev/null
+++ b/atcoder/abc341/b.rs
@@ -0,0 +1,45 @@
+// https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8
+macro_rules! input {
+    ($($r:tt)*) => {
+        let stdin = std::io::stdin();
+        let mut bytes = std::io::Read::bytes(std::io::BufReader::new(stdin.lock()));
+        let mut next = move || -> String{
+            bytes.by_ref().map(|r|r.unwrap() as char)
+                .skip_while(|c|c.is_whitespace())
+                .take_while(|c|!c.is_whitespace())
+                .collect()
+        };
+        input_inner!{next, $($r)*}
+    };
+}
+
+macro_rules! input_inner {
+    ($next:expr) => {};
+    ($next:expr,) => {};
+    ($next:expr, $var:ident : $t:tt $($r:tt)*) => {
+        let $var = read_value!($next, $t);
+        input_inner!{$next $($r)*}
+    };
+}
+
+macro_rules! read_value {
+    ($next:expr, ( $($t:tt),* )) => { ($(read_value!($next, $t)),*) };
+    ($next:expr, [ $t:tt ; $len:expr ]) => {
+        (0..$len).map(|_| read_value!($next, $t)).collect::<Vec<_>>()
+    };
+    ($next:expr, $t:ty) => ($next().parse::<$t>().expect("Parse error"));
+}
+
+fn main() {
+    input! {
+        n: usize,
+        a: [i64; n],
+        st: [(i64, i64); n - 1],
+    }
+    let mut x = a[0];
+    for i in 0..n - 1 {
+        let (s, t) = st[i];
+        x = x / s * t + a[i + 1];
+    }
+    println!("{}", x);
+}
diff --git a/atcoder/abc341/c.rs b/atcoder/abc341/c.rs
new file mode 100644
index 00000000..874c7216
--- /dev/null
+++ b/atcoder/abc341/c.rs
@@ -0,0 +1,69 @@
+// https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8
+macro_rules! input {
+    ($($r:tt)*) => {
+        let stdin = std::io::stdin();
+        let mut bytes = std::io::Read::bytes(std::io::BufReader::new(stdin.lock()));
+        let mut next = move || -> String{
+            bytes.by_ref().map(|r|r.unwrap() as char)
+                .skip_while(|c|c.is_whitespace())
+                .take_while(|c|!c.is_whitespace())
+                .collect()
+        };
+        input_inner!{next, $($r)*}
+    };
+}
+
+macro_rules! input_inner {
+    ($next:expr) => {};
+    ($next:expr,) => {};
+    ($next:expr, $var:ident : $t:tt $($r:tt)*) => {
+        let $var = read_value!($next, $t);
+        input_inner!{$next $($r)*}
+    };
+}
+
+macro_rules! read_value {
+    ($next:expr, [ $t:tt ; $len:expr ]) => {
+        (0..$len).map(|_| read_value!($next, $t)).collect::<Vec<_>>()
+    };
+    ($next:expr, chars) => {
+        read_value!($next, String).chars().collect::<Vec<char>>()
+    };
+    ($next:expr, $t:ty) => ($next().parse::<$t>().expect("Parse error"));
+}
+
+fn main() {
+    input! {
+        h: usize, w: usize, _n: usize,
+        t: chars,
+        s: [chars; h],
+    }
+    let mut ans = 0;
+    for i in 0..h {
+        for j in 0..w {
+            if s[i][j] == '#' { continue; }
+            let mut ok = true;
+            let mut x = i;
+            let mut y = j;
+            for &c in &t {
+                let (nx, ny) = match c {
+                    'U' => (x.wrapping_sub(1), y),
+                    'D' => (x + 1, y),
+                    'L' => (x, y.wrapping_sub(1)),
+                    'R' => (x, y + 1),
+                    _ => panic!(),
+                };
+                if s[nx][ny] == '#' {
+                    ok = false;
+                    break;
+                }
+                x = nx;
+                y = ny;
+            }
+            if ok {
+                ans += 1;
+            }
+        }
+    }
+    println!("{ans}");
+}
diff --git a/atcoder/abc341/d.rs b/atcoder/abc341/d.rs
new file mode 100644
index 00000000..0341330d
--- /dev/null
+++ b/atcoder/abc341/d.rs
@@ -0,0 +1,52 @@
+use std::io::Read;
+
+fn get_word() -> String {
+    let stdin = std::io::stdin();
+    let mut stdin=stdin.lock();
+    let mut u8b: [u8; 1] = [0];
+    loop {
+        let mut buf: Vec<u8> = Vec::with_capacity(16);
+        loop {
+            let res = stdin.read(&mut u8b);
+            if res.unwrap_or(0) == 0 || u8b[0] <= b' ' {
+                break;
+            } else {
+                buf.push(u8b[0]);
+            }
+        }
+        if buf.len() >= 1 {
+            let ret = String::from_utf8(buf).unwrap();
+            return ret;
+        }
+    }
+}
+
+fn get<T: std::str::FromStr>() -> T { get_word().parse().ok().unwrap() }
+
+fn gcd(a: i64, b: i64) -> i64 {
+    if b == 0 {
+        a
+    } else {
+        gcd(b, a % b)
+    }
+}
+
+fn main() {
+    let n: i64 = get();
+    let m: i64 = get();
+    let k: i64 = get();
+    let g = gcd(n, m);
+    let l = n / g * m;
+    let mut fail = 0;
+    let mut pass = n * k * 2;
+    while pass - fail > 1 {
+        let mid = (pass + fail) / 2;
+        let cnt = mid / n + mid / m - mid / l * 2;
+        if cnt >= k {
+            pass = mid;
+        } else {
+            fail = mid;
+        }
+    }
+    println!("{}", pass);
+}
diff --git a/atcoder/abc341/e.rs b/atcoder/abc341/e.rs
new file mode 100644
index 00000000..79fe267d
--- /dev/null
+++ b/atcoder/abc341/e.rs
@@ -0,0 +1,122 @@
+use std::io::{Write, BufWriter};
+// https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8
+macro_rules! input {
+    ($($r:tt)*) => {
+        let stdin = std::io::stdin();
+        let mut bytes = std::io::Read::bytes(std::io::BufReader::new(stdin.lock()));
+        let mut next = move || -> String{
+            bytes.by_ref().map(|r|r.unwrap() as char)
+                .skip_while(|c|c.is_whitespace())
+                .take_while(|c|!c.is_whitespace())
+                .collect()
+        };
+        input_inner!{next, $($r)*}
+    };
+}
+
+macro_rules! input_inner {
+    ($next:expr) => {};
+    ($next:expr,) => {};
+    ($next:expr, $var:ident : $t:tt $($r:tt)*) => {
+        let $var = read_value!($next, $t);
+        input_inner!{$next $($r)*}
+    };
+}
+
+macro_rules! read_value {
+    ($next:expr, ( $($t:tt),* )) => { ($(read_value!($next, $t)),*) };
+    ($next:expr, [ $t:tt ; $len:expr ]) => {
+        (0..$len).map(|_| read_value!($next, $t)).collect::<Vec<_>>()
+    };
+    ($next:expr, chars) => {
+        read_value!($next, String).chars().collect::<Vec<char>>()
+    };
+    ($next:expr, $t:ty) => ($next().parse::<$t>().expect("Parse error"));
+}
+
+// Segment Tree. This data structure is useful for fast folding on intervals of an array
+// whose elements are elements of monoid I. Note that constructing this tree requires the identity
+// element of I and the operation of I.
+// Verified by: yukicoder No. 2220 (https://yukicoder.me/submissions/841554)
+struct SegTree<I, BiOp> {
+    n: usize,
+    orign: usize,
+    dat: Vec<I>,
+    op: BiOp,
+    e: I,
+}
+
+impl<I, BiOp> SegTree<I, BiOp>
+    where BiOp: Fn(I, I) -> I,
+          I: Copy {
+    pub fn new(n_: usize, op: BiOp, e: I) -> Self {
+        let mut n = 1;
+        while n < n_ { n *= 2; } // n is a power of 2
+        SegTree {n: n, orign: n_, dat: vec![e; 2 * n - 1], op: op, e: e}
+    }
+    // ary[k] <- v
+    pub fn update(&mut self, idx: usize, v: I) {
+        debug_assert!(idx < self.orign);
+        let mut k = idx + self.n - 1;
+        self.dat[k] = v;
+        while k > 0 {
+            k = (k - 1) / 2;
+            self.dat[k] = (self.op)(self.dat[2 * k + 1], self.dat[2 * k + 2]);
+        }
+    }
+    // [a, b) (half-inclusive)
+    // http://proc-cpuinfo.fixstars.com/2017/07/optimize-segment-tree/
+    #[allow(unused)]
+    pub fn query(&self, rng: std::ops::Range<usize>) -> I {
+        let (mut a, mut b) = (rng.start, rng.end);
+        debug_assert!(a <= b);
+        debug_assert!(b <= self.orign);
+        let mut left = self.e;
+        let mut right = self.e;
+        a += self.n - 1;
+        b += self.n - 1;
+        while a < b {
+            if (a & 1) == 0 {
+                left = (self.op)(left, self.dat[a]);
+            }
+            if (b & 1) == 0 {
+                right = (self.op)(self.dat[b - 1], right);
+            }
+            a = a / 2;
+            b = (b - 1) / 2;
+        }
+        (self.op)(left, right)
+    }
+}
+
+fn main() {
+    let out = std::io::stdout();
+    let mut out = BufWriter::new(out.lock());
+    macro_rules! puts {($($format:tt)*) => (let _ = write!(out,$($format)*););}
+    input! {
+        n: usize, q: usize,
+        s: chars,
+        tlr: [(i32, usize, usize); q],
+    }
+    let mut st = SegTree::new(n, |x, y| x + y, 0);
+    for i in 0..n - 1 {
+        if s[i] == s[i + 1] {
+            st.update(i, 1);
+        }
+    }
+    for (t, l, r) in tlr {
+        if t == 1 {
+            if l >= 2 {
+                let tmp = st.query(l - 2..l - 1);
+                st.update(l - 2, tmp ^ 1);
+            }
+            if r < n {
+                let tmp = st.query(r - 1..r);
+                st.update(r - 1, tmp ^ 1);
+            }
+        } else {
+            let sum = st.query(l - 1..r - 1);
+            puts!("{}\n", if sum == 0 { "Yes" } else { "No" });
+        }
+    }
+}
diff --git a/atcoder/abc341/f.rs b/atcoder/abc341/f.rs
new file mode 100644
index 00000000..815eba84
--- /dev/null
+++ b/atcoder/abc341/f.rs
@@ -0,0 +1,70 @@
+// https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8
+macro_rules! input {
+    ($($r:tt)*) => {
+        let stdin = std::io::stdin();
+        let mut bytes = std::io::Read::bytes(std::io::BufReader::new(stdin.lock()));
+        let mut next = move || -> String{
+            bytes.by_ref().map(|r|r.unwrap() as char)
+                .skip_while(|c|c.is_whitespace())
+                .take_while(|c|!c.is_whitespace())
+                .collect()
+        };
+        input_inner!{next, $($r)*}
+    };
+}
+
+macro_rules! input_inner {
+    ($next:expr) => {};
+    ($next:expr,) => {};
+    ($next:expr, $var:ident : $t:tt $($r:tt)*) => {
+        let $var = read_value!($next, $t);
+        input_inner!{$next $($r)*}
+    };
+}
+
+macro_rules! read_value {
+    ($next:expr, ( $($t:tt),* )) => { ($(read_value!($next, $t)),*) };
+    ($next:expr, [ $t:tt ; $len:expr ]) => {
+        (0..$len).map(|_| read_value!($next, $t)).collect::<Vec<_>>()
+    };
+    ($next:expr, $t:ty) => ($next().parse::<$t>().expect("Parse error"));
+}
+
+fn main() {
+    input! {
+        n: usize, m: usize,
+        uv: [(usize, usize); m],
+        w: [usize; n],
+        a: [i64; n],
+    }
+    let mut g = vec![vec![]; n];
+    for &(u, v) in &uv {
+        if w[u - 1] < w[v - 1] {
+            g[v - 1].push(u - 1);
+        }
+        if w[u - 1] > w[v - 1] {
+            g[u - 1].push(v - 1);
+        }
+    }
+    let mut ord = vec![];
+    for i in 0..n {
+        ord.push((w[i], i));
+    }
+    ord.sort();
+    let mut dp = vec![0i64; n];
+    const W: usize = 5001;
+    for (_, v) in ord {
+        let mut ep = vec![0i64; W];
+        for &u in &g[v] {
+            for i in (w[u]..W).rev() {
+                ep[i] = ep[i].max(ep[i - w[u]] + dp[u]);
+            }
+        }
+        dp[v] = ep[w[v] - 1] + 1;
+    }
+    let mut tot = 0;
+    for i in 0..n {
+        tot += dp[i] * a[i];
+    }
+    println!("{}", tot);
+}
diff --git a/atcoder/abc341/remain.txt b/atcoder/abc341/remain.txt
index 9fbb6235..01058d84 100644
--- a/atcoder/abc341/remain.txt
+++ b/atcoder/abc341/remain.txt
@@ -1,6 +1 @@
-b
-c
-d
-e
-f
 g