Task: | Sudoku |
Sender: | |
Submission time: | 2015-08-16 08:34:51 +0300 |
Language: | C++ |
Status: | READY |
Result: | 100 |
group | verdict | score |
---|---|---|
#1 | ACCEPTED | 100 |
test | verdict | time | |
---|---|---|---|
#1 | ACCEPTED | 0.05 s | details |
#2 | ACCEPTED | 0.05 s | details |
#3 | ACCEPTED | 0.05 s | details |
#4 | ACCEPTED | 0.05 s | details |
#5 | ACCEPTED | 0.07 s | details |
Code
#include <iostream>using namespace std;int a[9][9];bool isValid(int row, int col, int x){// rowfor (int c = 0; c < 9; ++c)if (a[row][c] == x)return false;// colfor (int r = 0; r < 9; ++r)if (a[r][col] == x)return false;// blockint r = (row / 3) * 3;int c = (col / 3) * 3;if(a[r + 0][c + 0] == x) return false;if(a[r + 0][c + 1] == x) return false;if(a[r + 0][c + 2] == x) return false;if(a[r + 1][c + 0] == x) return false;if(a[r + 1][c + 1] == x) return false;if(a[r + 1][c + 2] == x) return false;if(a[r + 2][c + 0] == x) return false;if(a[r + 2][c + 1] == x) return false;if(a[r + 2][c + 2] == x) return false;return true;}int m = 0;bool solve(int l) {if (l > m)m = l;if (l == 81)return true;int r = l / 9;int c = l % 9;for (int x = 1; x <= 9; ++x) {if (isValid(r, c, x)) {a[r][c] = x;if (solve(l + 1))return true;a[r][c] = 0;}}return false;}int main(int argc, char** argv){cin.sync_with_stdio(false);int k;cin >> k;for (int i = 8; i >= 0; --i, k /= 10)a[0][i] = k % 10;solve(9);for (int r = 0; r < 9; ++r) {for (int c = 0; c < 9; ++c)cout << a[r][c];cout << endl;}cout << m << endl;return 0;}
Test details
Test 1
Verdict: ACCEPTED
input |
---|
592836471 |
correct output |
---|
592836471 836471592 471592836 928364715 364715928 ... |
user output |
---|
592836471 134257689 678149235 213465798 456798123 ... |
Test 2
Verdict: ACCEPTED
input |
---|
672935418 |
correct output |
---|
672935418 935418672 418672935 729354186 354186729 ... |
user output |
---|
672935418 134268579 589147236 213456897 456789123 ... |
Test 3
Verdict: ACCEPTED
input |
---|
329174658 |
correct output |
---|
329174658 174658329 658329174 291746583 746583291 ... |
user output |
---|
329174658 145268379 678359124 213485796 456791283 ... |
Test 4
Verdict: ACCEPTED
input |
---|
376958421 |
correct output |
---|
376958421 958421376 421376958 769584213 584213769 ... |
user output |
---|
376958421 124367589 589124367 213475698 457689132 ... |
Test 5
Verdict: ACCEPTED
input |
---|
875694321 |
correct output |
---|
875694321 694321875 321875694 756943218 943218756 ... |
user output |
---|
875694321 123578469 469123578 214356897 356789142 ... |