結果
| 問題 |
No.789 範囲の合計
|
| コンテスト | |
| ユーザー |
 mikit
|
| 提出日時 | 2020-05-31 13:34:11 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 634 ms / 1,000 ms |
| コード長 | 8,549 bytes |
| コンパイル時間 | 2,680 ms |
| コンパイル使用メモリ | 85,516 KB |
| 実行使用メモリ | 107,696 KB |
| 最終ジャッジ日時 | 2024-11-17 09:47:58 |
| 合計ジャッジ時間 | 10,837 ms |
|
ジャッジサーバーID （参考情報） |
judge2 / judge3 |
（要ログイン）
| ファイルパターン | 結果 |
|---|---|
| other | AC * 15 |
ソースコード
import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Arrays;
import java.util.function.LongBinaryOperator;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Stack;
import java.io.BufferedOutputStream;
import java.io.UncheckedIOException;
import java.util.Vector;
import java.nio.charset.Charset;
import java.util.StringTokenizer;
import java.io.Writer;
import java.io.OutputStreamWriter;
import java.io.BufferedReader;
import java.io.InputStream;
/**
* Built using CHelper plug-in
* Actual solution is at the top
*
* @author mikit
*/
public class Main {
public static void main(String[] args) {
InputStream inputStream = System.in;
OutputStream outputStream = System.out;
LightScanner in = new LightScanner(inputStream);
LightWriter out = new LightWriter(outputStream);
No789 solver = new No789();
solver.solve(1, in, out);
out.close();
}
static class No789 {
public void solve(int testNumber, LightScanner in, LightWriter out) {
FastIntDynamicSegmentTree st = new FastIntDynamicSegmentTree(1 << 30, 100000, Long::sum, 0, Long::sum);
int n = in.ints();
long ans = 0;
for (int i = 0; i < n; i++) {
if (in.ints() == 0) st.update(in.ints(), in.ints());
else ans += st.queryRec(in.ints(), in.ints() + 1);
}
//System.out.println(st);
out.ans(ans).ln();
}
}
static class LightWriter implements AutoCloseable {
private final Writer out;
private boolean autoflush = false;
private boolean breaked = true;
public LightWriter(Writer out) {
this.out = out;
}
public LightWriter(OutputStream out) {
this(new OutputStreamWriter(new BufferedOutputStream(out), Charset.defaultCharset()));
}
public LightWriter print(char c) {
try {
out.write(c);
breaked = false;
} catch (IOException ex) {
throw new UncheckedIOException(ex);
}
return this;
}
public LightWriter print(String s) {
try {
out.write(s, 0, s.length());
breaked = false;
} catch (IOException ex) {
throw new UncheckedIOException(ex);
}
return this;
}
public LightWriter ans(String s) {
if (!breaked) {
print(' ');
}
return print(s);
}
public LightWriter ans(long l) {
return ans(Long.toString(l));
}
public LightWriter ln() {
print(System.lineSeparator());
breaked = true;
if (autoflush) {
try {
out.flush();
} catch (IOException ex) {
throw new UncheckedIOException(ex);
}
}
return this;
}
public void close() {
try {
out.close();
} catch (IOException ex) {
throw new UncheckedIOException(ex);
}
}
}
static class FastIntDynamicSegmentTree {
private final long lb;
private final long ub;
private final LongBinaryOperator op;
private final LongBinaryOperator up;
private final long zero;
private final Stack<Integer> reusableStack = new Stack<>();
private int used;
private int allocated;
private int[] l;
private int[] r;
private long[] v;
public FastIntDynamicSegmentTree(long lb, long ub, int cap, LongBinaryOperator op, long zero, LongBinaryOperator up) {
if (lb > ub) throw new IllegalArgumentException();
this.lb = lb;
this.ub = ub;
this.op = op;
this.up = up;
this.zero = zero;
this.used = 1;
int height = 64 - Long.numberOfLeadingZeros(ub - lb - 1);
this.allocated = Math.max(cap * height, 1);
this.l = new int[allocated];
this.r = new int[allocated];
this.v = new long[allocated];
l[0] = r[0] = -1;
v[0] = zero;
}
public FastIntDynamicSegmentTree(long n, int cap, LongBinaryOperator op, long zero, LongBinaryOperator up) {
this(0, n == 1 ? 1 : Long.highestOneBit(n - 1) << 1, cap, op, zero, up);
}
public FastIntDynamicSegmentTree(long n, LongBinaryOperator op, long zero, LongBinaryOperator up) {
this(n, 128, op, zero, up);
}
public FastIntDynamicSegmentTree(LongBinaryOperator op, long zero, LongBinaryOperator up) {
this(Integer.MAX_VALUE, op, zero, up);
}
private int l(int i) {
return i == -1 ? -1 : l[i];
}
private int r(int i) {
return i == -1 ? -1 : r[i];
}
private long v(int i) {
return i == -1 ? zero : v[i];
}
private void propagate(int i) {
this.v[i] = op.applyAsLong(v(l(i)), v(r(i)));
}
private int createNode(long x) {
if (used == allocated) {
allocated <<= 1;
l = Arrays.copyOf(l, allocated);
r = Arrays.copyOf(r, allocated);
v = Arrays.copyOf(v, allocated);
}
this.l[used] = this.r[used] = -1;
this.v[used] = x;
return used++;
}
public void update(long i, long x) {
if (i < lb || ub <= i) throw new IndexOutOfBoundsException();
Stack<Integer> update = reusableStack;
int node = 0;
long lo = lb, hi = ub;
while (hi - lo > 1) {
update.push(node);
long mid = (lo + hi) >> 1;
if (i < mid) {
if (l[node] == -1) l[node] = createNode(zero);
node = l[node];
hi = mid;
} else {
if (r[node] == -1) r[node] = createNode(zero);
node = r[node];
lo = mid;
}
}
v[node] = up.applyAsLong(v[node], x);
while (!update.isEmpty()) propagate(update.pop());
}
private long queryRec(long l, long r, int node, long lo, long hi) {
if (l <= lo && hi <= r) return v(node);
if (r <= lo || hi <= l || node == -1) return zero;
long mid = (lo + hi) >> 1;
return op.applyAsLong(queryRec(l, r, l(node), lo, mid), queryRec(l, r, r(node), mid, hi));
}
public long queryRec(long l, long r) {
if (l < lb || ub < r || l > r) throw new IndexOutOfBoundsException();
return queryRec(l, r, 0, lb, ub);
}
public String toString() {
return "IntDynamicSegmentTree(" +
"range = [" + lb +
", " + ub +
"), zero = " + zero +
", used " + used +
" / " + allocated +
")\nl = " + Arrays.toString(Arrays.copyOf(l, used)) +
"\nr = " + Arrays.toString(Arrays.copyOf(r, used)) +
"\nv = " + Arrays.toString(Arrays.copyOf(v, used)) +
'\n';
}
}
static class LightScanner implements AutoCloseable {
private BufferedReader reader = null;
private StringTokenizer tokenizer = null;
public LightScanner(InputStream in) {
reader = new BufferedReader(new InputStreamReader(in));
}
public String string() {
if (tokenizer == null || !tokenizer.hasMoreTokens()) {
try {
tokenizer = new StringTokenizer(reader.readLine());
} catch (IOException e) {
throw new UncheckedIOException(e);
}
}
return tokenizer.nextToken();
}
public int ints() {
return Integer.parseInt(string());
}
public void close() {
try {
this.reader.close();
} catch (IOException ex) {
throw new UncheckedIOException(ex);
}
}
}
}