#include "myMatrix.h" int checkMatrix(int matrixArr[9][9], int isPrintInfo){ int rowCnt[9][10]={0}; int colCnt[9][10]={0}; int bloCnt[9][10]={0}; for(int i=0;i<9;i++){ for(int j=0;j<9;j++){ if(matrixArr[i][j]!=0){ rowCnt[i][matrixArr[i][j]]++; if(rowCnt[i][matrixArr[i][j]]>1){ if(isPrintInfo){ printf("\nFalse:Invalid initial Sudoku matrix!"); printf("\nThe number %d in the row %d has been used!",matrixArr[i][j],i+1); } return 0; } colCnt[j][matrixArr[i][j]]++; if(colCnt[j][matrixArr[i][j]]>1){ if(isPrintInfo){ printf("\nFalse:Invalid initial Sudoku matrix!"); printf("\nThe number %d in the col %d has been used!",matrixArr[i][j],j+1); } return 0; } bloCnt[i/3*3+j/3][matrixArr[i][j]]++; if(bloCnt[i/3*3+j/3][matrixArr[i][j]]>1){ if(isPrintInfo){ printf("\nFalse:Invalid initial Sudoku matrix!"); printf("\nThe number %d in the block %d has been used!",matrixArr[i][j],i/3*3+j/3+1); } return 0; } } } } if(isPrintInfo){ printf("\nTrue:Valid initial Sudoku matrix!"); } return 1; } // int main(){ // int board0[9][9] = {{5, 3, 0, 0, 7, 0, 0, 0, 0}, // {6, 0, 0, 1, 9, 5, 0, 0, 0}, // {0, 9, 8, 0, 0, 0, 0, 6, 0}, // {8, 0, 0, 0, 6, 0, 0, 0, 3}, // {4, 0, 0, 8, 0, 3, 0, 0, 1}, // {7, 0, 0, 0, 2, 0, 0, 0, 6}, // {0, 6, 0, 0, 0, 0, 2, 8, 0}, // {0, 0, 0, 4, 1, 9, 0, 0, 5}, // {0, 0, 0, 0, 8, 0, 0, 7, 9}}; // int board1[9][9] = {{8, 3, 0, 0, 7, 0, 0, 0, 0}, // {6, 0, 0, 1, 9, 5, 0, 0, 0}, // {0, 9, 8, 0, 0, 0, 0, 6, 0}, // {8, 0, 0, 0, 6, 0, 0, 0, 3}, // {4, 0, 0, 8, 0, 3, 0, 0, 1}, // {7, 0, 0, 0, 2, 0, 0, 0, 6}, // {0, 6, 0, 0, 0, 0, 2, 8, 0}, // {0, 0, 0, 4, 1, 9, 0, 0, 5}, // {0, 0, 0, 0, 8, 0, 0, 7, 9}}; // printf("The original Sudoku matrix: \n"); // matrixOutput(board1); // checkMatrix(board1,1); // return 0; // }