TA的每日心情 | 开心 2021-3-12 23:18 |
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签到天数: 2 天 [LV.1]初来乍到
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C语言趣味程序百例精解之java实现(55)谁值班
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分析:
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程序:
- public class Test55{
- public static void main(String args[]){
- new Test55().whoOnDuty55();
- }
- /**
- * 55。谁值班
- */
- public void whoOnDuty55() {
- for (int a = 1; a <= 7; a++)
- for (int b = 1; b <= 7; b++)
- for (int c = 1; c <= 7; c++)
- for (int d = 1; d <= 7; d++)
- for (int e = 1; e <= 7; e++)
- for (int f = 1; f <= 7; f++)
- for (int g = 1; g <= 7; g++) {
- if ((a - c == 1)
- && (d - e == 2)
- && (g - b == 3)
- && (f == 4)
- && ((b > 4 && c < 4) || (b < 4 && c > 5))
- && (a + b + c + d + e + f + g == (1 + 7) / 2 * 7)
- && notEquls(new int[] { a, b, c, d,
- e, f, g }) == true) {
- System.out.println("a=" + a);
- System.out.println("b=" + b);
- System.out.println("c=" + c);
- System.out.println("d=" + d);
- System.out.println("e=" + e);
- System.out.println("f=" + f);
- System.out.println("g=" + g + "
- ");
- }
- }
- }
- /**
- * 判断是否两两不相等
- */
- public boolean notEquls(int[] a) {
- if (a == null || a.length == 0 || a.length == 1)
- return true;
- for (int i = 0; i < a.length; i++) {
- for (int j = 0; j < a.length; j++) {
- if (a[i] == a[j] && i != j) {
- // System.out.println("a[" + i + "]" + a[i] + " a[" + j +
- // "]"
- // + a[j] + "---");
- return false;
- }
- }
- }
- return true;
- }
- }
- 运行:
- C:at>java Test55
- a=7
- b=2
- c=6
- d=3
- e=1
- f=4
- g=5
- E大夫是星期一,B大夫是星期二,D大夫是星期三,F大夫是星期四,G大夫是星期五,C大夫是
- 星期六,A大夫是星期日。
复制代码
源码下载:http://file.javaxxz.com/2014/11/20/000450828.zip |
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