結果
| 問題 |
No.879 Range Mod 2 Query
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2020-08-10 17:10:47 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 2,669 ms / 3,000 ms |
| コード長 | 4,682 bytes |
| コンパイル時間 | 2,392 ms |
| コンパイル使用メモリ | 78,764 KB |
| 実行使用メモリ | 131,948 KB |
| 最終ジャッジ日時 | 2024-10-08 00:22:06 |
| 合計ジャッジ時間 | 27,500 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 1 |
| other | AC * 21 |
ソースコード
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.ArrayDeque;
import java.util.NoSuchElementException;
class FastScanner {
private final InputStream in = System.in;
private final byte[] buffer = new byte[1024];
private int ptr = 0;
private int buflen = 0;
private boolean hasNextByte() {
if (ptr < buflen) {
return true;
}else{
ptr = 0;
try {
buflen = in.read(buffer);
} catch (IOException e) {
e.printStackTrace();
}
if (buflen <= 0) {
return false;
}
}
return true;
}
private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}
private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte();}
public String next() {
if (!hasNext()) throw new NoSuchElementException();
StringBuilder sb = new StringBuilder();
int b = readByte();
while(isPrintableChar(b)) {
sb.appendCodePoint(b);
b = readByte();
}
return sb.toString();
}
public long nextLong() {
if (!hasNext()) throw new NoSuchElementException();
long n = 0;
boolean minus = false;
int b = readByte();
if (b == '-') {
minus = true;
b = readByte();
}
if (b < '0' || '9' < b) {
throw new NumberFormatException();
}
while(true){
if ('0' <= b && b <= '9') {
n *= 10;
n += b - '0';
}else if(b == -1 || !isPrintableChar(b)){
return minus ? -n : n;
}else{
throw new NumberFormatException();
}
b = readByte();
}
}
public int nextInt() {
long nl = nextLong();
if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();
return (int) nl;
}
public double nextDouble() { return Double.parseDouble(next());}
}
class Main {
public static void main(String[] args) {
new Main().run();
}
class Tree {
int n=1;
int n_;
long[] sum;
int[] sum_parity;
ArrayDeque<Long>[] lazy;
long erase=-1;
public Tree(int n_) {
while (n<n_) n*=2;
this.n_=n_;
sum=new long[2*n-1];
sum_parity=new int[2*n-1];
lazy=new ArrayDeque[2*n-1];
for (int i=0;i<lazy.length;++i) lazy[i]=new ArrayDeque<Long>();
}
void push(int k,int l,int r) {
while (!lazy[k].isEmpty()) {
long key=lazy[k].pollFirst();
if (key==erase) {
sum[k]=sum_parity[k];
} else {
sum[k]+=key*(r-l);
if (key%2==1) {
sum_parity[k]=r-l-sum_parity[k];
}
}
if (2*k+1<sum.length) {
if (key==erase) {
for (int i=1;i<=2;++i){
long add=0;
while (!lazy[2*k+i].isEmpty()) {
if (lazy[2*k+i].peekLast()==erase)
lazy[2*k+i].pollLast();
else {
add+=lazy[2*k+i].pollLast();
}
}
lazy[2*k+i].addLast(add);
lazy[2*k+i].addLast(erase);
}
} else {
for (int i=1;i<=2;++i) {
if (!lazy[2*k+i].isEmpty() && lazy[2*k+i].peekLast()!=erase) {
lazy[2*k+i].add(lazy[2*k+i].pollLast()+key);
} else {
lazy[2*k+i].add(key);
}
}
}
}
}
}
void erase(int a,int b) {
query(0,n,a,b,0,erase);
}
void add(int a,int b,long val) {
query(0,n,a,b,0,val);
}
long query(int a,int b) {
return query(0,n,a,b,0,0);
}
long query(int l,int r,int a,int b,int k,long add) {
push(k,l,r);
if (r<=a||b<=l) return 0;
else if (a<=l&&r<=b) {
lazy[k].addLast(add);
push(k,l,r);
return sum[k];
} else {
long vl=query(l,(l+r)/2,a,b,2*k+1,add);
long vr=query((l+r)/2,r,a,b,2*k+2,add);
sum[k]=sum[2*k+1]+sum[2*k+2];
sum_parity[k]=sum_parity[2*k+1]+sum_parity[2*k+2];
return vl+vr;
}
}
}
void run() {
FastScanner sc = new FastScanner();
int N=sc.nextInt();
int Q=sc.nextInt();
Tree tree=new Tree(N);
for (int i=0;i<N;++i) {
long A=Integer.parseInt(sc.next());
tree.add(i, i+1, A);
}
PrintWriter pw=new PrintWriter(System.out);
for (int i=0;i<Q;++i) {
int t=sc.nextInt();
int l=sc.nextInt()-1;
int r=sc.nextInt();
if (t==1) {
tree.erase(l,r);
} else if (t==2) {
long x=sc.nextLong();
tree.add(l, r, x);
} else {
pw.println(tree.query(l, r));
}
}
pw.flush();
}
}