解题思路:
注意事项:
参考代码:
import java.util.Scanner; public class C1560 { private static final String[] arr = { "1111110", "0011000", "0110111", "0111101", "1011001", "1101101", "1101111", "0111000", "1111111", "1111101" }; public static void main(String[] args) { Scanner sc = new Scanner(System.in); while (sc.hasNext()) { int n = sc.nextInt(); String a = sc.next(), b = sc.next(); int count = 0; for(int i = 0; i < n; i++){ if(a.charAt(i) != b.charAt(i)){ String sa = arr[Integer.valueOf(""+a.charAt(i))]; String sb = arr[Integer.valueOf(""+b.charAt(i))]; for(int j = 0; j < 7; j++){ if(sa.charAt(j) != sb.charAt(j)) count++; } } } System.out.println(count); } sc.close(); } }
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