贝壳笔试...我怕是有毒
本地IDE测试都跑了...提交0AC,写的测试用例输出为空...用不明白的在线编辑器
public static void main(String args[]){ // Scanner n = new Scanner(System.in); Scanner firstInt = new Scanner(System.in); Scanner in = new Scanner(System.in); int n = firstInt.nextInt(); if (n == 0) { System.out.println(0); } else if (n == 1){ int[] b = new int[n]; for (int i = 0; i < b.length; i++) { b[i] = in.nextInt(); } System.out.println(b[0]); } else { int[] b = new int[n]; for (int i = 0; i < b.length; i++) { b[i] = in.nextInt(); } int first = 0; int scond = 0; int temp = 10000; int a = 0; for (int i = 1; i < b.length; i++) { int firstnum = b[i-1]; int scondnum = b[i]; a = Math.abs(firstnum - scondnum); if(a < temp){ temp = a; first = i-1; scond = i; } // if (a <= temp){ // // } } System.out.println(b[first] +" " + b[scond]); }}
public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); //arr数组表示输入的序列 int[] arr = new int[11111]; //longest数组中存放上升序列的长度,longest[i]表示以arr[i]结尾的子序列的最大长度 int[] longest = new int[11111]; for (int i = 1; i <= n; i++) { int a = sc.nextInt(); arr[i] = a; } int result = -1; for (int i = 1; i <= n; i++) { longest[i] = 1; for (int j = 1; j < i; j++) { if (arr[i] > arr[j] && (longest[j] + 1 > longest[i])) { longest[i] = longest[j] + 1; } } result = Math.max(result, longest[i]); } System.out.println(result); }
public static void main(String args[]){ Scanner firstInt = new Scanner(System.in); Scanner in = new Scanner(System.in); int n = firstInt.nextInt(); int[] array = new int[n]; for (int i = 0; i < array.length; i++) { array[i] = in.nextInt(); } //int[] array = {1,1,1,1,1}; int count = 0; for (int i = 0; i < array.length; i++) { for (int j = i; j < array.length - 1; j++) { if (array[i] > array[j]){ if (array[i] * 0.9 <= array[j]) { count++; } } if (array[i] < array[j]){ if (array[i] >= array[j]* 0.9) { count++; } } if (array[i] == array[j]){ count++; } } } System.out.println(count); }