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damage
2026-07-24 20:41:07 +02:00
parent 8d9c1ae088
commit 6fe3c5c188
1 changed files with 22 additions and 6 deletions
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sudoku.c
+21 -5
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@@ -27,6 +27,7 @@ int sudoku[9][9] = {
*/
// https://www.free-sudoku.com/sudoku.php?dchoix=evil
/*
int sudoku[9][9] = {
{VALUE_UNDEFINED,1,VALUE_UNDEFINED,VALUE_UNDEFINED,VALUE_UNDEFINED,VALUE_UNDEFINED,VALUE_UNDEFINED,VALUE_UNDEFINED,VALUE_UNDEFINED},
{3,VALUE_UNDEFINED,VALUE_UNDEFINED,VALUE_UNDEFINED,8,VALUE_UNDEFINED,VALUE_UNDEFINED,VALUE_UNDEFINED,VALUE_UNDEFINED},
@@ -38,6 +39,19 @@ int sudoku[9][9] = {
{1,VALUE_UNDEFINED,VALUE_UNDEFINED,6,VALUE_UNDEFINED,VALUE_UNDEFINED,VALUE_UNDEFINED,VALUE_UNDEFINED,VALUE_UNDEFINED},
{5,VALUE_UNDEFINED,VALUE_UNDEFINED,VALUE_UNDEFINED,8,VALUE_UNDEFINED,VALUE_UNDEFINED,VALUE_UNDEFINED,VALUE_UNDEFINED}
};
*/
int sudoku[9][9] = {
{5, VALUE_UNDEFINED, VALUE_UNDEFINED, VALUE_UNDEFINED, 1, VALUE_UNDEFINED, VALUE_UNDEFINED, VALUE_UNDEFINED, VALUE_UNDEFINED},
{VALUE_UNDEFINED, VALUE_UNDEFINED, 4, VALUE_UNDEFINED, VALUE_UNDEFINED, VALUE_UNDEFINED, 1, VALUE_UNDEFINED, 2},
{7, VALUE_UNDEFINED, VALUE_UNDEFINED, VALUE_UNDEFINED, 3, VALUE_UNDEFINED, VALUE_UNDEFINED, 5, VALUE_UNDEFINED},
{VALUE_UNDEFINED, VALUE_UNDEFINED, 7, 3, VALUE_UNDEFINED, VALUE_UNDEFINED, VALUE_UNDEFINED, 6, VALUE_UNDEFINED},
{VALUE_UNDEFINED, 2, VALUE_UNDEFINED, VALUE_UNDEFINED, 6, VALUE_UNDEFINED, VALUE_UNDEFINED, 4, VALUE_UNDEFINED},
{VALUE_UNDEFINED, 9, VALUE_UNDEFINED, VALUE_UNDEFINED, VALUE_UNDEFINED, 8, 3, VALUE_UNDEFINED, VALUE_UNDEFINED},
{VALUE_UNDEFINED, 8, VALUE_UNDEFINED, VALUE_UNDEFINED, 4, VALUE_UNDEFINED, VALUE_UNDEFINED, VALUE_UNDEFINED, 2},
{4, VALUE_UNDEFINED, 6, VALUE_UNDEFINED, VALUE_UNDEFINED, VALUE_UNDEFINED, 7, VALUE_UNDEFINED, VALUE_UNDEFINED},
{VALUE_UNDEFINED, VALUE_UNDEFINED, VALUE_UNDEFINED, VALUE_UNDEFINED, 1, VALUE_UNDEFINED, VALUE_UNDEFINED, VALUE_UNDEFINED, 9}
};
void readQ(int num) {
printf("Enter every number of Q%d from left top to right bottom. Use `0` if on no initial value:\n", num + 1);
@@ -225,9 +239,9 @@ bool isInQuadrat(int q, int val) {
return false;
}
void setValue(int q, int f, int val) {
void setValue(int q, int f, int val, char* rule) {
sudoku[q][f] = val;
printf("=> setting %d in Q %d; F %d\n", val, q, f);
printf("=> setting %d in Q %d; F %d (%s)\n", val, q, f, rule);
//printDumpSudoku();
}
@@ -276,12 +290,14 @@ int main() {
};
for (int val = 1; val <= 9; val++) {
// val is already set in quadrat, go ahead
if (isInQuadrat(q, val)) {
continue;
}
int possibleField = FIELD_UNDEFINED;
for (int f = 0; f < 9; f++) {
// calculate row and col of current field in quadrant
int row = calculateRow(q, f);
int col = calculateCol(q, f);
@@ -310,12 +326,12 @@ int main() {
// found possible field? set val
if (possibleField > FIELD_UNDEFINED) {
setValue(q, possibleField, val);
setValue(q, possibleField, val, "standard col/row check");
somethingChanged = true;
}
}
// check if only one field is left undefined -> hast to be the one special value
// check if only one field is left undefined -> has to be the one special value
for (int f = 0; f < 9; f++) {
// keep in mind that sudoku array might have changed since evaluation
// -> ignore already set values
@@ -324,7 +340,7 @@ int main() {
}
if (possbileVal[f] > VALUE_UNDEFINED) {
setValue(q, f, possbileVal[f]);
setValue(q, f, possbileVal[f], "every other value is not possible here");
somethingChanged = true;
} else {
// set to undefined, multiple or any other meta information