Yandex1

package com.company;

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {

        Scanner in = new Scanner(System.in);
        int size = in.nextInt();
        int[][] arr = new int[size][size];

        for(int i = 0; i < size; i++) {
            for(int j = 0; j < size; j++) {
                arr[i][j] = in.nextInt();
            }
        }

        boolean[] arrBool = new boolean[size * size];

        for(int i = 0; i < size; i++) {
            for(int j = 0; j < size; j++) {
                if(arr[i][j] != 0) {
                    arrBool[arr[i][j] - 1] = true;
                }
            }
        }

        for(int i = 0; i < size; i++) {
            for(int j = 0; j < size; j++) {
                if(arr[i][j] == 0) {
                    for(int t = 0; t < (size * size); t++) {
                        if(!arrBool[t]) {
                            arrBool[t] = true;
                            arr[i][j] = t + 1;
                            break;
                        }
                    }
                }
            }
        }

        for(int i = 0; i < size; i++) {
            for(int j = 0; j < size; j++) {
                System.out.print(arr[i][j] + " ");
            }
            if (i != size - 1)
                System.out.println();
        }

    }
}