题目1122:吃糖果

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import java.io.IOException;import java.io.FileReader;import java.io.InputStreamReader;import java.io.BufferedReader;import java.util.Scanner;class Main{public static final boolean DEBUG = false;public static void main(String[] args) throws IOException{Scanner cin;int n;if (DEBUG) {cin = new Scanner(new FileReader("d:\\OJ\\uva_in.txt"));} else {cin = new Scanner(new InputStreamReader(System.in));}int[] f = new int[20];f[1] = 1; f[2] = 2;for (int i = 3; i <= 19; i++) {f[i] = f[i - 1] + f[i - 2];}while (cin.hasNext()) {n = cin.nextInt();System.out.println(f[n]);}}}

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