Compile Error

foo.cc: In function 'int IsLeapYear(int)':
foo.cc:7:15: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
  if (year%4==0&&year%100!=0||year%400==0)
      ~~~~~~~~~^~~~~~~~~~~~~
foo.cc: At global scope:
foo.cc:49:40: error: ISO C++ forbids declaration of 'WeekdayOfTheFirstDay' with no type [-fpermissive]
 WeekdayOfTheFirstDay(int year,int month)
                                        ^
foo.cc: In function 'int main()':
foo.cc:83:10: warning: unused variable 'd' [-Wunused-variable]
  int y,m,d;
          ^
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信息

递交者
类型
递交
题目
P1094 打印月历
语言
C++
递交时间
2021-08-01 17:27:41
评测时间
2021-08-01 17:27:41
评测机
分数
0
总耗时
0ms
峰值内存
0 Bytes