結果
問題 | No.1036 Make One With GCD 2 |
ユーザー |
|
提出日時 | 2020-05-11 12:25:38 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 1,569 ms / 2,000 ms |
コード長 | 3,463 bytes |
コンパイル時間 | 4,343 ms |
コンパイル使用メモリ | 77,996 KB |
実行使用メモリ | 68,116 KB |
最終ジャッジ日時 | 2024-09-16 14:21:24 |
合計ジャッジ時間 | 27,097 ms |
ジャッジサーバーID (参考情報) |
judge6 / judge4 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 4 |
other | AC * 41 |
ソースコード
import java.io.IOException;import java.io.InputStream;import java.util.Arrays;import java.util.NoSuchElementException;public class Main{public static void main(String[] args) {new Main().run();}class SegTree {int n=1;long[] v;public SegTree(int n) {while (this.n<n) this.n*=2;v=new long[2*this.n];}void setVal(int k,long val) {k+=n;v[k]=val;while (k!=1) {k/=2;v[k]=gcd(v[2*k],v[2*k+1]);}}long query(int a,int b) {return query(1,n+1,a+1,b+1,1);}long query(int l,int r,int a,int b,int k) {if (r<=a||b<=l) {return 0;} else if (a<=l&&r<=b) {return v[k];} else {long vl=query(l,(l+r)/2,a,b,2*k);long vr=query((l+r)/2,r,a,b,2*k+1);return gcd(vl,vr);}}}long gcd(long a,long b) {return a==0?b:gcd(b%a,a);}void run() {FastScanner sc=new FastScanner();int N=sc.nextInt();long[] A=new long[N];SegTree seg=new SegTree(N+1);for (int i=0;i<N;++i) {A[i]=sc.nextLong();seg.setVal(i, A[i]);}long ans=0;int t=0;for (int s=0;s<N;++s) {t=Math.max(t, s);long cur=seg.query(s, t);while (cur!=1 && t<N) {cur=gcd(cur,A[t++]);}if (cur==1) {ans+=N-(t-1);}}System.out.println(ans);}void tr(Object...objects) {System.out.println(Arrays.deepToString(objects));}}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());}}