結果
問題 | No.1234 典型RMQ |
ユーザー | c-yan |
提出日時 | 2021-02-07 01:53:07 |
言語 | Go (1.22.1) |
結果 |
AC
|
実行時間 | 241 ms / 2,000 ms |
コード長 | 3,574 bytes |
コンパイル時間 | 14,726 ms |
コンパイル使用メモリ | 226,916 KB |
実行使用メモリ | 8,064 KB |
最終ジャッジ日時 | 2024-11-09 02:40:16 |
合計ジャッジ時間 | 19,675 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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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 | 1 ms
5,248 KB |
testcase_03 | AC | 1 ms
5,248 KB |
testcase_04 | AC | 1 ms
5,248 KB |
testcase_05 | AC | 1 ms
5,248 KB |
testcase_06 | AC | 185 ms
7,808 KB |
testcase_07 | AC | 129 ms
5,248 KB |
testcase_08 | AC | 194 ms
8,064 KB |
testcase_09 | AC | 166 ms
5,632 KB |
testcase_10 | AC | 241 ms
8,064 KB |
testcase_11 | AC | 224 ms
7,808 KB |
testcase_12 | AC | 173 ms
5,504 KB |
testcase_13 | AC | 154 ms
5,248 KB |
testcase_14 | AC | 193 ms
5,632 KB |
testcase_15 | AC | 163 ms
5,504 KB |
testcase_16 | AC | 191 ms
7,936 KB |
testcase_17 | AC | 164 ms
5,632 KB |
testcase_18 | AC | 113 ms
5,248 KB |
testcase_19 | AC | 190 ms
8,064 KB |
testcase_20 | AC | 139 ms
7,680 KB |
testcase_21 | AC | 184 ms
7,808 KB |
testcase_22 | AC | 210 ms
8,064 KB |
testcase_23 | AC | 210 ms
7,936 KB |
testcase_24 | AC | 211 ms
7,936 KB |
testcase_25 | AC | 211 ms
7,936 KB |
testcase_26 | AC | 211 ms
8,064 KB |
testcase_27 | AC | 1 ms
5,248 KB |
testcase_28 | AC | 1 ms
5,248 KB |
testcase_29 | AC | 1 ms
5,248 KB |
ソースコード
package main import ( "bufio" "fmt" "math" "os" "strconv" ) func min(x, y int) int { if x < y { return x } return y } const ( defaultValue = math.MaxInt64 defaultLazy = 0 ) type segmentTree struct { offset int values []int lazy []int } func newSegmentTree(n int) segmentTree { var result segmentTree t := 1 for t < n { t *= 2 } result.offset = t - 1 result.values = make([]int, 2*t-1) result.lazy = make([]int, 2*t-1) for i := 0; i < 2*t-1; i++ { result.values[i] = defaultValue result.lazy[i] = defaultLazy } return result } func op(x, y int) int { return min(x, y) } func (st segmentTree) build(a []int) { for i, v := range a { st.values[st.offset+i] = v } for i := st.offset - 1; i > -1; i-- { st.values[i] = op(st.values[i*2+1], st.values[i*2+2]) } } func (st segmentTree) propagateTo(index int, value int) { st.lazy[index] += value st.values[index] += value } func (st segmentTree) propagateAt(index int) { if index != 0 { st.propagateAt(st.getParentIndex(index)) } if st.lazy[index] == defaultLazy { return } st.propagateTo(index*2+1, st.lazy[index]) st.propagateTo(index*2+2, st.lazy[index]) st.lazy[index] = defaultLazy } func (st segmentTree) recalcAt(index int) { st.values[index] = op(st.values[index*2+1], st.values[index*2+2]) if index != 0 { st.recalcAt(st.getParentIndex(index)) } } func (st segmentTree) applyAt(index int, value int) { st.lazy[index] += value st.values[index] += value if index != 0 { st.recalcAt(st.getParentIndex(index)) } } func (st segmentTree) getParentIndex(index int) int { if index < 1 { panic("BUG: doesn't exists parent of 0") } return (index - 1) / 2 } func (st segmentTree) propagate(start, stop int) { l := start + st.offset r := stop + st.offset for l < r { if l&1 == 0 { if l != 0 { st.propagateAt(st.getParentIndex(l)) } } if r&1 == 0 { if r-1 != 0 { st.propagateAt(st.getParentIndex(r - 1)) } } l = l / 2 r = (r - 1) / 2 } } func (st segmentTree) apply(start, stop int, value int) { st.propagate(start, stop) l := start + st.offset r := stop + st.offset for l < r { if l&1 == 0 { st.applyAt(l, value) } if r&1 == 0 { st.applyAt(r-1, value) } l = l / 2 r = (r - 1) / 2 } } func (st segmentTree) query(start, stop int) int { st.propagate(start, stop) result := defaultValue l := start + st.offset r := stop + st.offset for l < r { if l&1 == 0 { result = op(result, st.values[l]) } if r&1 == 0 { result = op(result, st.values[r-1]) } l = l / 2 r = (r - 1) / 2 } return result } func main() { defer flush() N := readInt() a := make([]int, N) for i := 0; i < N; i++ { a[i] = readInt() } Q := readInt() st := newSegmentTree(N) st.build(a) for i := 0; i < Q; i++ { k := readInt() l := readInt() r := readInt() c := readInt() if k == 1 { st.apply(l-1, r, c) } else if k == 2 { println(st.query(l-1, r)) } } } const ( ioBufferSize = 1 * 1024 * 1024 // 1 MB ) var stdinScanner = func() *bufio.Scanner { result := bufio.NewScanner(os.Stdin) result.Buffer(make([]byte, ioBufferSize), ioBufferSize) result.Split(bufio.ScanWords) return result }() func readString() string { stdinScanner.Scan() return stdinScanner.Text() } func readInt() int { result, err := strconv.Atoi(readString()) if err != nil { panic(err) } return result } var stdoutWriter = bufio.NewWriter(os.Stdout) func flush() { stdoutWriter.Flush() } func println(args ...interface{}) (int, error) { return fmt.Fprintln(stdoutWriter, args...) }