fork download
copy 
  1. #include <stdio.h>
  2.  int main(void)
  3.  {
  4.      int y, m, d, sum = 0, leap;
  5.      printf("请输入年 月 日：");
  6.      scanf("%d%d%d", &y, &m, &d);
  7.      // 1. 闰年判断（选择结构）
  8.      if ((y%4==0 && y%100!=0) || y%400==0)
  9.          leap = 1;
  10.      else
  11.          leap = 0;
  12.      // 2. 选择结构累加天数（简化版，按月份分支）
  13.      if (m == 1) sum = d;
  14.      else if (m == 2) sum = 31 + d;
  15.      else if (m == 3) sum = 59 + leap + d;
  16.      else if (m == 4) sum = 90 + leap + d;
  17.      else if (m == 5) sum = 120 + leap + d;
  18.      else if (m == 6) sum = 151 + leap + d;
  19.      else if (m == 7) sum = 181 + leap + d;
  20.      else if (m == 8) sum = 212 + leap + d;
  21.      else if (m == 9) sum = 243 + leap + d;
  22.      else if (m == 10) sum = 273 + leap + d;
  23.      else if (m == 11) sum = 304 + leap + d;
  24.      else if (m == 12) sum = 334 + leap + d;
  25.      else { printf("月份非法！\n"); return 0; }
  26.      printf("%d年%d月%d日是该年第%d天\n", y, m, d, sum);
  27.      return 0;
  28.  }
Success #stdin #stdout 0s 5320KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
请输入年 月 日：月份非法！
https://ideone.com/36GL5O
language:
C++ 4.3.2 (gcc-4.3.2)
created:
6 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!