diff --git a/atcoder/abc375/a.rs b/atcoder/abc375/a.rs
new file mode 100644
index 00000000..77be7976
--- /dev/null
+++ b/atcoder/abc375/a.rs
@@ -0,0 +1,17 @@
+fn getline() -> String {
+    let mut ret = String::new();
+    std::io::stdin().read_line(&mut ret).ok().unwrap();
+    ret
+}
+
+fn main() {
+    getline();
+    let s = getline().trim().bytes().collect::<Vec<_>>();
+    let mut ans = 0;
+    for i in 2..s.len() {
+        if &s[i - 2..i + 1] == b"#.#" {
+            ans += 1;
+        }
+    }
+    println!("{ans}");
+}
diff --git a/atcoder/abc375/b.rs b/atcoder/abc375/b.rs
new file mode 100644
index 00000000..166a6958
--- /dev/null
+++ b/atcoder/abc375/b.rs
@@ -0,0 +1,51 @@
+// 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::<$t>().expect("Parse error"));
+}
+
+fn main() {
+    input! {
+        n: usize,
+        xy: [(f64, f64); n],
+    }
+    let mut xy = xy;
+    xy.push((0.0, 0.0));
+    let mut ans = 0.0;
+    for i in 0..n + 1 {
+        let j = (i + 1) % (n + 1);
+        let (x1, y1) = xy[i];
+        let (x2, y2) = xy[j];
+        let dx = x2 - x1;
+        let dy = y2 - y1;
+        let dist = (dx * dx + dy * dy).sqrt();
+        ans += dist;
+    }
+    println!("{ans}");
+}
diff --git a/atcoder/abc375/d.rs b/atcoder/abc375/d.rs
new file mode 100644
index 00000000..20d053ef
--- /dev/null
+++ b/atcoder/abc375/d.rs
@@ -0,0 +1,20 @@
+fn getline() -> String {
+    let mut ret = String::new();
+    std::io::stdin().read_line(&mut ret).ok().unwrap();
+    ret
+}
+
+fn main() {
+    let mut occ = vec![vec![]; 26];
+    for (i, c) in getline().trim().bytes().enumerate() {
+        occ[(c - b'A') as usize].push(i as i64);
+    }
+    let mut ans = 0;
+    for occ in occ {
+        let m = occ.len();
+        for i in 0..m {
+            ans += occ[i] * (2 * i as i64 - m as i64 + 1) - i as i64;
+        }
+    }
+    println!("{ans}");
+}
diff --git a/atcoder/abc375/e.rs b/atcoder/abc375/e.rs
new file mode 100644
index 00000000..7e167fd3
--- /dev/null
+++ b/atcoder/abc375/e.rs
@@ -0,0 +1,65 @@
+// https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8
+macro_rules! input {
+    ($($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"));
+}
+
+const INF: i32 = 1 << 28;
+
+fn main() {
+    input! {
+        n: usize,
+        ab: [(i32, usize); n],
+    }
+    const W: usize = 501;
+    let bsum = ab.iter().map(|&(_, b)| b).sum::<usize>();
+    if bsum % 3 != 0 {
+        println!("-1");
+        return;
+    }
+    let mut dp = vec![vec![INF; W]; W];
+    dp[0][0] = 0;
+    for (a, b) in ab {
+        let mut ep = vec![vec![INF; W]; W];
+        for i in 0..W {
+            for j in 0..W {
+                ep[i][j] = ep[i][j].min(dp[i][j] + (a != 3) as i32);
+                if i + b < W {
+                    ep[i + b][j] = ep[i + b][j].min(dp[i][j] + (a != 1) as i32);
+                }
+                if j + b < W {
+                    ep[i][j + b] = ep[i][j + b].min(dp[i][j] + (a != 2) as i32);
+                }
+            }
+        }
+        dp = ep;
+    }
+    let ans = dp[bsum / 3][bsum / 3];
+    println!("{}", if ans == INF { -1 } else { ans });
+}
diff --git a/atcoder/abc375/remain.txt b/atcoder/abc375/remain.txt
new file mode 100644
index 00000000..8c6a0e56
--- /dev/null
+++ b/atcoder/abc375/remain.txt
@@ -0,0 +1,3 @@
+c
+f
+g