题解 | 计算日期到天数转换

package main

import (
    "fmt"
)

func main() {
    var year, month, day int
    fmt.Scan(&year, &month, &day)
    days := [12]int{31,28,31,30,31,30,31,31,30,31,30,31}
    if isRunYear(year) {
        days[1] = 29
    }
    sum := day
    for i := 0; i< month-1; i++ {
        sum += days[i]
    }
    fmt.Println(sum)
}

func isRunYear(year int) bool {
    if (year%4 ==0 && year%100 != 0) || year%400 == 0 {
        return true
    }
    return false
}