Ruudukko

#include <iostream>
#include <fstream>
#include <stdlib.h>
#include <string>
#include <algorithm>
#include <iterator>


using namespace std;

int main(){
  int num;
  cin >> num;

  int arr[101][101];

  for (int c = 0; c < num; c++){
    for (int r = 0; r < num; r++){
      int smallest = 0;
      bool found = false;
      int arrR[101];
      int arrC[101];
      //cout << r << "," << c << ": " << "rArr: ";
      for(int i = 0; i < num; i++){
        arrR[i] = arr[r][i];
        //cout<<arrR[i]<<" ";
      }
      //cout << "\n";
      //cout << r << "," << c << ": " << "cArr: ";
      for(int i = 0; i < num; i++){
        arrC[i] = arr[i][c];
        //cout<<arrC[i]<<" ";
      }
      while(!found){
        smallest++;
        int *rPointer = std::find(std::begin(arrR), std::end(arrR), smallest);
        int *cPointer = std::find(std::begin(arrC), std::end(arrC), smallest);
        if(rPointer == std::end(arrR) && cPointer == std::end(arrC)){
          found = true;
        }
      }
      //cout << "\n" << r << "," << c << ": " << "smallest: " << smallest << "\n";
      arr[r][c] = smallest;
      //cout << "END\n";

    }
  }
  for(int r2 = 0; r2 < num; r2++)
  {
    if(r2 != 0){
      cout<<"\n";
    }
    for(int c2 = 0; c2 < num; c2++)
    {
          if(c2 == 0){
            cout << arr[r2][c2];
          }else{
            cout<<" "<<arr[r2][c2];
          }
    }
  }

  return 0;
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: WRONG ANSWER

Test 6

Verdict: WRONG ANSWER