c语言语句count ++2哪里错了,哪位大佬帮我看下哪里错了，第二个答案一直不对...

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#include

#define YEAR 2

#define MONTHS 12

int main()

{

int days[YEAR][MONTHS] = { {31,28,31,30,31,30,31,31,30,31,30,31},

{31,29,31,30,31,30,31,31,30,31,30,31} };

int year; //输入年份

int month; //输入月份

int day; //输入日期

int t_days=0; //1900年到输入年份天数总和

int i; //控制循环

int years; //刚开始年份

int tt_days=0; //输入当年除输入月份当月天数的总天数

int totaldays=0; //总天数

int k; //判断是否在工作

scanf("%4d-%2d-%2d", &year, &month, &day);

if (year >= 1900 && (month > 0 && month <= 12) && (day > 0 && day <= 31))

{

for (years = 1900; years < year; years++)

{

if (years % 400 == 0 || (years % 4 == 0 && years % 100 != 0))

{

t_days += 366;

}

else

{

t_days += 365;

}

}

if (years % 400 == 0 || (years % 4 == 0 && years % 100 != 0))

{

for (i = 0; i < month; i++)

{

tt_days += days[1][i];

}

}

else

{

for (i = 0; i < month; i++)

{

tt_days += days[1][i];

}

}

totaldays = t_days + tt_days + day;

k = totaldays % 5;

if (k <= 3 && k > 0)

{

printf("He is working");

}

else

{

printf("He is having a rest");

}

}

else

{

printf("Invalid input");

}

return 0;

}