package no404; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.ArrayList; import java.util.Arrays; import java.util.HashMap; import java.util.InputMismatchException; import java.util.NoSuchElementException; public class Main { public static void main(String[] args) { IO io = new IO(); int n = io.nextInt(); int[] a = io.nextIntArray(n); Pair[] p = new Pair[n]; for(int i=0;i Integer.compare(x.v, y.v)); HashMap zip = new HashMap<>(); int[] unzip = new int[n]; int ind = 0; for(int i=0;i= n || r < 0) { ans = 0; }else{ ans = count2.sum(l, r + 1); } io.println(ans); } io.flush(); } static void count(int n,Pair[] p,RangeAdd count) { RangeSum bit = new RangeSum(n); int used = 0; for(int i=0;i used) { used = p[i].v; for(int j=i;j used) { break; } bit.accumlate(p[j].i, 1); } } int j = p[i].i; long left = j - bit.sum(0, j); long right = n - 1 - j - bit.sum(j + 1, n); int x = p[i].i; count.accumulate(x, x + 1, left * right); } } static void count2(int n,Pair[] p,RangeAdd count) { for(int i=0;i al = new ArrayList<>(); int f = i; for(;i0) { s+=bit[i]; i-=i&-i; } return s; } public long get(int index) { return sum(index,index+1); } public void set(int index,long num) { accumlate(index,num-(sum(index)-sum(index-1))); } public String toString() { long[] value = new long[n]; for(int i=0;i0) { s+=bit[i]; i-=i&-i; } return s; } public long get(int index) { return sum(index+1); } public void set(int index,long num) { accumulate(index,index+1,num-get(index)); } public String toString() { long[] value = new long[n]; for(int i=0;i= key) { return fromIndex; } int l = fromIndex; int r = toIndex - 1; while(l + 1 < r) { int c = (l + r) >>> 1; if (a[c] >= key) { r = c; }else{ l = c; } } return r; } static int lowerBound(int[] a,int key) { return lowerBound(a, 0, a.length, key); } static int upperBound(int[] a,int fromIndex,int toIndex,int key) { if (a[toIndex-1] <= key) { return toIndex - 1; }else if(a[fromIndex] > key) { return fromIndex - 1; } int l = fromIndex; int r = toIndex - 1; while(l + 1 < r) { int c = (l + r) >>> 1; if (a[c] > key) { r = c; }else{ l = c; } } return l; } static int upperBound(int[] a,int key) { return upperBound(a, 0, a.length, key); } } class IO extends PrintWriter { private final InputStream in; private final byte[] buffer = new byte[1024]; private int ptr = 0; private int buflen = 0; public IO() { this(System.in);} public IO(InputStream source) { super(System.out); this.in = source;} 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;} private static boolean isNewLine(int c) { return c == '\n' || c == '\r';} public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte();} public boolean hasNextLine() { while(hasNextByte() && isNewLine(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 char[] nextCharArray(int len) { if (!hasNext()) { throw new NoSuchElementException(); } char[] s = new char[len]; int i = 0; int b = readByte(); while(isPrintableChar(b)) { if (i == len) { throw new InputMismatchException(); } s[i++] = (char) b; b = readByte(); } return s; } public String nextLine() { if (!hasNextLine()) { throw new NoSuchElementException(); } StringBuilder sb = new StringBuilder(); int b = readByte(); while(!isNewLine(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 char nextChar() { if (!hasNext()) { throw new NoSuchElementException(); } return (char) readByte(); } public double nextDouble() { return Double.parseDouble(next());} public int[] nextIntArray(int n) { int[] a = new int[n]; for(int i=0;i