Sudoku

input/code.cpp: In function 'int main()':
input/code.cpp:17:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%c", &c);
                        ^

#include <iostream>
#include <algorithm>
#include <cmath>
#include <climits>
#include <cstdio>

using namespace std;

typedef signed long long int ll;
typedef unsigned long long int ull;

int board[9][9] = {{0}};

int main() {
    for (int i = 0; i < 9; ++i) {
        char c;
        scanf("%c", &c);
        board[0][i] = c - '0';
    }

    for (int i = 0; i < 9; ++i) {
        board[1][i] = board[0][(i+3)%9];
        board[2][i] = board[0][(i+6)%9];
    }

    for (int i = 0; i < 9; ++i) {
        for (int j = 0; j < 3; ++j) {
            board[j+3][(i+1)%9] = board[j][i];
            board[j+6][(i+2)%9] = board[j][i];
        }
    }

    for (int r = 0; r < 9; ++r) {
        for (int c = 0; c < 9; ++c) {
            cout << (board[r][c]);
        }
        cout << endl;
    }

    return 0;
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED