题解 | 单组_二维数组
单组_二维数组
https://www.nowcoder.com/practice/4df606b6c3764d9c969f8759c8a4807b
import java.util.Scanner
fun main(args:Array<String>){
val reader = Scanner(System.`in`)
val (row, col) = reader.nextLine().split(" ").map { it.toInt() }
var sum:Long = 0
for(i in 0 until col){
for(j in 0 until row){
sum += reader.nextInt()
}
}
println(sum)
}
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