解题思路:
注意事项:
注意读题!
参考代码:
import java.util.Scanner; public class C1512 { public static void main(String[] args) { Scanner sc = new Scanner(System.in); while (sc.hasNext()) { StringBuffer sb = new StringBuffer(); int n = sc.nextInt(); int[] a = new int[n+1]; for(int i = 0; i <= n; i++){ a[i] = sc.nextInt(); } for(int i = 0; i < n-1; i++){ if(a[i] != 0){ sb.append(String.format("%sx^%d", Math.abs(a[i]) != 1 ? String.valueOf(a[i]) : String.valueOf(a[i]).replace("1", ""), n-i)); } if(a[i+1] > 0) sb.append("+"); } if(a[n-1] != 0) sb.append(String.format("%sx", Math.abs(a[n-1]) != 1 ? String.valueOf(a[n-1]) : String.valueOf(a[n-1]).replace("1", ""))); if(a[n] > 0) sb.append("+" + a[n]); else if(a[n] < 0) sb.append(a[n]); if(sb.charAt(0) != '+') System.out.println(sb); else System.out.println(sb.substring(1)); } sc.close(); } }
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