結果
問題 | No.1649 Manhattan Square |
ユーザー | 草苺奶昔 |
提出日時 | 2023-04-08 15:51:56 |
言語 | Go (1.22.1) |
結果 |
WA
|
実行時間 | - |
コード長 | 7,223 bytes |
コンパイル時間 | 12,193 ms |
コンパイル使用メモリ | 219,176 KB |
実行使用メモリ | 76,784 KB |
最終ジャッジ日時 | 2024-10-03 11:30:42 |
合計ジャッジ時間 | 98,061 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 1 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,248 KB |
testcase_02 | AC | 29 ms
5,248 KB |
testcase_03 | AC | 28 ms
5,248 KB |
testcase_04 | AC | 29 ms
5,248 KB |
testcase_05 | AC | 30 ms
5,248 KB |
testcase_06 | AC | 36 ms
5,248 KB |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | WA | - |
testcase_25 | WA | - |
testcase_26 | WA | - |
testcase_27 | WA | - |
testcase_28 | WA | - |
testcase_29 | WA | - |
testcase_30 | WA | - |
testcase_31 | WA | - |
testcase_32 | WA | - |
testcase_33 | WA | - |
testcase_34 | WA | - |
testcase_35 | WA | - |
testcase_36 | WA | - |
testcase_37 | WA | - |
testcase_38 | WA | - |
testcase_39 | WA | - |
testcase_40 | WA | - |
testcase_41 | WA | - |
testcase_42 | AC | 1,153 ms
43,648 KB |
testcase_43 | AC | 1 ms
5,248 KB |
testcase_44 | AC | 1 ms
5,248 KB |
ソースコード
package main import ( "bufio" "fmt" "os" "runtime/debug" "sort" ) func init() { debug.SetGCPercent(-1) } func main() { in := bufio.NewReader(os.Stdin) out := bufio.NewWriter(os.Stdout) defer out.Flush() var n int fmt.Fscan(in, &n) points := make([][2]int, n) for i := 0; i < n; i++ { fmt.Fscan(in, &points[i][0], &points[i][1]) } fmt.Fprintln(out, ManhattanSquare(points)) } const MOD int = 998244353 const INF int = 1e18 var INV2 = Pow(2, MOD-2, MOD) // ManhattanSquare 计算所有点对的曼哈顿距离平方和 func ManhattanSquare(points [][2]int) int { res := 0 for t_ := 0; t_ < 4; t_++ { for i := range points { points[i][0], points[i][1] = -points[i][1], points[i][0] } seg := NewDynamicSegTreeSparse(-INF, INF, false) root := seg.NewRoot() sort.Slice(points, func(i, j int) bool { return points[i][0] < points[j][0] }) for _, p := range points { x, y := p[0], p[1] x2 := ((x+y)*(x+y)%MOD + MOD) % MOD x1 := ((x+y)%MOD + MOD) % MOD x0 := 1 s := seg.Query(root, -INF, y) res += (((x2*s[0]%MOD - 2*x1*s[1]%MOD + x0*s[2]%MOD) % MOD) + MOD) % MOD res %= MOD root = seg.Update(root, y, [3]int{x0, x1, x2}) } } res = (res * INV2) % MOD return res } // PointAddRangeSum type E = [3]int func e() E { return [3]int{0, 0, 0} } func op(a, b E) E { return [3]int{ ((a[0]+b[0])%MOD + MOD) % MOD, ((a[1]+b[1])%MOD + MOD) % MOD, ((a[2]+b[2])%MOD + MOD) % MOD, } } type DynamicSegTreeSparse struct { L, R int persistent bool unit E } type SegNode struct { idx int l, r *SegNode x, prod E } // 指定 [left,right) 区间建立动态开点线段树. func NewDynamicSegTreeSparse(left, right int, persistent bool) *DynamicSegTreeSparse { return &DynamicSegTreeSparse{ L: left, R: right, persistent: persistent, unit: e(), } } func (ds *DynamicSegTreeSparse) NewRoot() *SegNode { return nil } // 查询区间 [left, right). // L<=left<=right<=R func (ds *DynamicSegTreeSparse) Query(root *SegNode, left, right int) E { if left == right { return ds.unit } x := ds.unit ds._queryRec(root, ds.L, ds.R, left, right, &x) return x } func (ds *DynamicSegTreeSparse) QueryAll(root *SegNode) E { return ds.Query(root, ds.L, ds.R) } // L<=index<R func (ds *DynamicSegTreeSparse) Set(root *SegNode, index int, value E) *SegNode { return ds._setRec(root, ds.L, ds.R, index, value) } func (ds *DynamicSegTreeSparse) Get(root *SegNode, index int) E { return ds._getRec(root, index) } // L<=left<R func (ds *DynamicSegTreeSparse) Update(root *SegNode, index int, value E) *SegNode { return ds._updateRec(root, ds.L, ds.R, index, value) } // 二分查询最小的 left 使得切片 [left:right] 内的值满足 check. // L<=right<=R func (ds *DynamicSegTreeSparse) MinLeft(root *SegNode, right int, check func(E) bool) int { x := ds.unit return ds._minLeftRec(root, ds.L, ds.R, right, check, &x) } // 二分查询最大的 right 使得切片 [left:right] 内的值满足 check. // L<=left<=R func (ds *DynamicSegTreeSparse) MaxRight(root *SegNode, left int, check func(E) bool) int { x := ds.unit return ds._maxRightRec(root, ds.L, ds.R, left, check, &x) } func (ds *DynamicSegTreeSparse) GetAll(root *SegNode) []struct { index int value E } { res := make([]struct { index int value E }, 0) ds._getAllRec(root, &res) return res } func (ds *DynamicSegTreeSparse) _pushUp(node *SegNode) { node.prod = node.x if node.l != nil { node.prod = op(node.l.prod, node.prod) } if node.r != nil { node.prod = op(node.prod, node.r.prod) } } func (ds *DynamicSegTreeSparse) _newNode(idx int, x E) *SegNode { return &SegNode{idx: idx, x: x, prod: x} } func (ds *DynamicSegTreeSparse) _copyNode(node *SegNode) *SegNode { if node == nil || !ds.persistent { return node } return &SegNode{idx: node.idx, l: node.l, r: node.r, x: node.x, prod: node.prod} } func (ds *DynamicSegTreeSparse) _setRec(root *SegNode, l, r, i int, x E) *SegNode { if root == nil { root = ds._newNode(i, x) return root } root = ds._copyNode(root) if root.idx == i { root.x = x ds._pushUp(root) return root } m := (l + r) >> 1 if i < m { if root.idx < i { root.idx, i = i, root.idx root.x, x = x, root.x } root.l = ds._setRec(root.l, l, m, i, x) } else { if i < root.idx { root.idx, i = i, root.idx root.x, x = x, root.x } root.r = ds._setRec(root.r, m, r, i, x) } ds._pushUp(root) return root } func (ds *DynamicSegTreeSparse) _updateRec(root *SegNode, l, r, i int, x E) *SegNode { if root == nil { root = ds._newNode(i, x) return root } root = ds._copyNode(root) if root.idx == i { root.x = op(root.x, x) ds._pushUp(root) return root } m := (l + r) >> 1 if i < m { if root.idx < i { root.idx, i = i, root.idx root.x, x = x, root.x } root.l = ds._updateRec(root.l, l, m, i, x) } else { if i < root.idx { root.idx, i = i, root.idx root.x, x = x, root.x } root.r = ds._updateRec(root.r, m, r, i, x) } ds._pushUp(root) return root } func (ds *DynamicSegTreeSparse) _queryRec(root *SegNode, l, r, ql, qr int, x *E) { ql = max(ql, l) qr = min(qr, r) if ql >= qr || root == nil { return } if l == ql && r == qr { *x = op(*x, root.prod) return } m := (l + r) >> 1 ds._queryRec(root.l, l, m, ql, qr, x) if ql <= root.idx && root.idx < qr { *x = op(*x, root.x) } ds._queryRec(root.r, m, r, ql, qr, x) } func (ds *DynamicSegTreeSparse) _minLeftRec(root *SegNode, l, r, qr int, check func(E) bool, x *E) int { if root == nil || qr <= l { return ds.L } if check(op(root.prod, *x)) { *x = op(root.prod, *x) return ds.L } m := (l + r) >> 1 k := ds._minLeftRec(root.r, m, r, qr, check, x) if k != ds.L { return k } if root.idx < qr { *x = op(root.x, *x) if !check(*x) { return root.idx + 1 } } return ds._minLeftRec(root.l, l, m, qr, check, x) } func (ds *DynamicSegTreeSparse) _maxRightRec(root *SegNode, l, r, ql int, check func(E) bool, x *E) int { if root == nil || r <= ql { return ds.R } if check(op(*x, root.prod)) { *x = op(*x, root.prod) return ds.R } m := (l + r) >> 1 k := ds._maxRightRec(root.l, l, m, ql, check, x) if k != ds.R { return k } if ql <= root.idx { *x = op(*x, root.x) if !check(*x) { return root.idx } } return ds._maxRightRec(root.r, m, r, ql, check, x) } func (ds *DynamicSegTreeSparse) _getAllRec(root *SegNode, res *[]struct { index int value E }) { if root == nil { return } ds._getAllRec(root.l, res) *res = append(*res, struct { index int value E }{root.idx, root.x}) ds._getAllRec(root.r, res) } func (ds *DynamicSegTreeSparse) _getRec(root *SegNode, idx int) E { if root == nil { return ds.unit } if idx == root.idx { return root.x } if idx < root.idx { return ds._getRec(root.l, idx) } return ds._getRec(root.r, idx) } func abs(x int) int { if x < 0 { return -x } return x } func min(a, b int) int { if a < b { return a } return b } func max(a, b int) int { if a > b { return a } return b } func Pow(base, exp, mod int) int { base %= mod res := 1 for ; exp > 0; exp >>= 1 { if exp&1 == 1 { res = res * base % mod } base = base * base % mod } return res }