Sudoku

#include <iostream>

using namespace std;

int t[9][9], h[3][3][10], a[9][10], b[9][10];
int main(){
    string s;
    cin >> s;
    for(int i=0; i<9; ++i){
        t[0][i]=s[i]-'0';
        h[0][i/3][t[0][i]]=1;
        a[i][t[0][i]]=1;
    }
    for(int j=1; j<9; ++j){
        for(int i=0; i<9; ++i){
            for(int x=1; x<=9; ++x){
                if(h[j/3][i/3][x]+a[i][x]+b[j][x]==0){
                    t[j][i]=x;
                    h[j/3][i/3][x]=1;
                    a[i][x]=1;
                    b[j][x]=1;
                    break;
                }
            }
        }
    }
    for(int i=0; i<9; ++i) {
        for(int j=0; j<9; ++j) cout << t[i][j];
        cout << "\n";
    }
}

Test 1

Verdict: WRONG ANSWER

Test 2

Verdict: WRONG ANSWER

Test 3

Verdict: WRONG ANSWER

Test 4

Verdict: WRONG ANSWER

Test 5

Verdict: WRONG ANSWER