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35 lines
524 B

package main
func recursion(b board, a []tetrimino, idx int) bool {
if idx == len(a) {
return true
}
for i := range b {
for j := range b[i] {
if !b.check(i, j, a[idx]) {
continue
}
b.put(i, j, idx, a[idx])
if recursion(b, a, idx+1) {
return true
}
b.remove(i, j, a[idx])
}
}
return false
}
func solve(a []tetrimino) board {
square := 2
for square*square < len(a)*4 {
square++
}
for {
b := makeBoard(square)
square++
if !recursion(b, a, 0) {
continue
}
return b
}
}