/
1435.go
65 lines (53 loc) · 896 Bytes
/
1435.go
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package main
import "fmt"
var dimension int
var matrix = [100][100]int{}
func isValid(u int, v int, limit int) bool {
canX := u >= limit && u < (dimension-limit)
canY := v >= limit && v < (dimension-limit)
return canX && canY
}
func fillBorder(i int) {
u, v := i, i
for isValid(u, v, i) {
matrix[u][v] = i + 1
v++
}
v--
for isValid(u, v, i) {
matrix[u][v] = i + 1
u++
}
u--
for isValid(u, v, i) {
matrix[u][v] = i + 1
v--
}
v++
for isValid(u, v, i) {
matrix[u][v] = i + 1
u--
}
}
func main() {
for true {
fmt.Scan(&dimension)
if dimension == 0 {
break
}
for i := 0; i < dimension; i++ {
fillBorder(i)
}
for i := 0; i < dimension; i++ {
for j := 0; j < dimension; j++ {
if j == 0 {
fmt.Printf("%3d", matrix[i][j])
} else {
fmt.Printf("%4d", matrix[i][j])
}
}
fmt.Printf("\n")
}
fmt.Printf("\n")
}
}