[java] lh
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- import java.io.*;
- import java.math.*;
- import java.util.*;
- public class Main {
- public static void main(String[] args){
- Scanner cin = new Scanner(System.in);
- int n = cin.nextInt();
- int []ar = new int[n + 1];
- int []suf = new int[n + 2];
- for(int i = 1; i <= n; ++i) {
- ar[i] = cin.nextInt();
- }
- suf[n+1] = Integer.MAX_VALUE;
- for(int i = n; i >= 1; --i) {
- suf[i] = Math.min(suf[i + 1], ar[i]);
- }
- int cnt = 0;
- for(int i = 1; i <= n; ++i) {
- if(ar[i] < suf[i + 1]) ++ cnt;
- }
- System.out.println(cnt);
- }
- }
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