Envío 5023

Código

package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
	"strings"
)

func main() {
	reader := bufio.NewReader(os.Stdin)

	n, _ := reader.ReadString('\n')
	n = strings.ReplaceAll(n, "\n", "")
	nInt, _ := strconv.ParseInt(n, 10, 64)
	var diagonal1 int64 = 0
	var diagonal2 int64 = 0
	var sumValue int64 = 0
	isInit := true
	for i := 0; i < int(nInt); i++ {
		row, _ := reader.ReadString('\n')
		row = strings.ReplaceAll(row, "\n", "")
		rowSplits := strings.Split(row, " ")
		var rowSum int64 = 0
		for index, v := range rowSplits {
			vInt, _ := strconv.ParseInt(v, 10, 64)

			if index == i {
				diagonal1 += vInt
			}
			if int(nInt-1)-i == index {
				diagonal2 += vInt
			}
			rowSum += vInt

		}
		if isInit {
			sumValue = rowSum
			isInit = false
		}

		if sumValue != rowSum {
			fmt.Println("No")
			return
		}

	}

	if sumValue != diagonal1 || sumValue != diagonal2 {

		fmt.Println("No")
		return
	}

	fmt.Println("Yes")

}