C语言程序设计教程（第三版）课后习题11.1 （Java代码）

解题思路:

先算够整月，再加上不够整月的天数



注意事项:

润年



参考代码:

import java.util.*;

public class A1049 {

public static void main(String args[]) {

Scanner sc = new Scanner(System.in);

int a = sc.nextInt();

int b = sc.nextInt();

int c = sc.nextInt();

int sum = 0;

for (int x = 1; x < b; x++) {

if (x == 1 || x == 3 || x == 5 || x == 7 || x == 8 || x == 10

|| x == 12)

sum = sum + 31;

if (x == 4 || x == 6 || x == 9 || x == 11)

sum = sum + 30;

if (x == 2) {

if (a % 4 == 0 && a % 100 != 0 || a % 400 == 0)//润年判断

sum = sum + 29;

else

sum = sum + 28;

}

}

sum = sum + c;

System.out.println(sum);

}

}