Hm3

Exercise/Homework3/Q2.rs

@@ -0,0 +1,34 @@
+use std::io;
+
+fn main(){
+    let core = "edgnb";
+    let mut s = String::new();
+    io::stdin().read_line(&mut s).unwrap();
+    let mut n: i32 = s.trim().parse().unwrap();
+    
+    for i in 0..n{
+        let mut js = 0;
+        let mut cnt = 0;
+        let mut str = String::new();
+        io::stdin().read_line(&mut str).unwrap();
+        let mut num = String::new();
+        io::stdin().read_line(&mut num).unwrap();
+        let mut m: i32 = num.trim().parse().unwrap();
+
+        let mut j = 0;
+        while j <= str.len() - 5{
+            if &str[j..j+5] == core {
+                js += 1;
+                j += 5;
+                if js >= m {
+                    cnt += 1;
+                }
+            } else{
+                js = 0;
+                j += 1;
+            }
+        }
+
+        println!("{}", cnt);
+    }
+}