题解 | 数位之和
数位之和
https://www.nowcoder.com/practice/5e85cc26475449648e668aa98e92d05b
package main
import (
"fmt"
"math"
)
func main() {
var n int
fmt.Scan(&n)
if n < 0 {
n = -n
}
sum := 0
for i := math.Pow10(9); i >= 1; i /= 10 {
sum += n / int(i)
n = n % int(i)
}
fmt.Print(sum)
}
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