从出生到18岁生日总天数(C++)

代码

#include 

using namespace std;

//是否是闰年
int isLeap(int year) {
    if ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0) {
        return 1;
    } else {
        return 0;
    }
}

//闰年和平年各月天数
int Month[2][12] = {{31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31},
                    {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31},};

//到18岁总天数
int totalDays(int y, int m, int d) {
    int days = 0;
    int birthYear;
    int leap;
    for (birthYear = y + 1; birthYear < y + 18; ++birthYear) {
        leap = isLeap(birthYear);
        for (int i = 0; i < 12; ++i) {
            days += Month[leap][i];
        }
    }

    int i;
    birthYear = y;
    leap = isLeap(birthYear);
    days += Month[leap][m - 1] - d;
    for (i = m; i < 12; ++i) {
        days += Month[leap][i];
    }
    days += Month[leap][i];


    birthYear = y + 18;
    leap = isLeap(birthYear);
    for (i = 0; i < m - 1; ++i) {
        days += Month[leap][i];
    }
    days += d;
    return days;
}

int main() {

    cout << totalDays(1988, 3, 7);
    return 0;
}

测试