秋招备战day8

1. 模版

package main
import "fmt"func main(){var n, m intvar s1, s2 stringfmt.Scan(&n, &m)fmt.Scan(&s1)fmt.Scan(&s2)n1, n2:= len(s1), len(s2)ans := 0for i := 0; i < n1 && i < n2; i++ {if s1[i] != s2[i] {ans ++}}if n1 > n2 {ans += n1 - n2} else if n2 > n1 {ans += n2 - n1}fmt.Println(ans)  }

2. I题是个签到题

package main
import "fmt"func main(){var n, m intvar a[1005]intfmt.Scan(&n, &m)for i := 0; i < n; i ++{fmt.Scan(&a[i])}x := 0for i := 0; i < n; i ++{if(a[i] > a[8]){x ++}}if float64(a[8]) >= 0.8 * float64(m) || x <= 2{fmt.Println("Yes")}else{fmt.Println("No")}
}

3. 牛牛战队的秀场

package mainimport ("fmt""math"
)func roundTo(x float64, k int) float64 {p := math.Pow(10, float64(k))return math.Round(x*p) / p
}func main() {var r float64var n, i, j intfmt.Scan(&n, &r)fmt.Scan(&i, &j)diff := int(math.Abs(float64(i - j)))mine := diffif n - diff < diff{mine = n - diff}r10 := roundTo(r, 10)sin10 := roundTo(math.Sin(math.Pi/float64(n)), 10)s := 2 * r10 * sin10 * float64(mine)fmt.Printf("%.6f\n", s)
}

4. enjoy the game

package mainimport "fmt"func main() {var n uint64fmt.Scan(&n)if n != 0 && (n&(n-1)) == 0 {fmt.Println("Alice")} else {fmt.Println("Bob")}
}