1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131
|
#include<stdio.h>
int chiffre_possible_ligne_colonne(int sudoku[9][9], int i, int j, int c);
int verif_bloc(int sudoku[9][9], int x, int y);
void cherche_libre(int sudoku[9][9], int *pi, int *pj);
int est_completement_rempli(int sudoku[9][9]);
void cherche_solutions(int sudoku[9][9]);
int main(void)
{
int sudoku[9][9]={ {0,0,0,0,6,0,8,0,0},
{3,0,0,8,0,7,1,9,5},
{8,0,0,0,0,5,0,7,0},
{4,0,3,0,8,6,7,0,0},
{0,8,0,0,2,0,0,6,0},
{0,0,2,1,7,0,3,0,8},
{0,7,0,4,0,0,0,0,1},
{5,3,9,7,0,8,0,0,4},
{0,0,1,0,3,0,0,0,0}
};
cherche_solutions(sudoku);
return 0;
}
int chiffre_possible_ligne_colonne(int sudoku[9][9], int i, int j, int c)
{
int k;
for (k=0; k<9; k++)
{
if (sudoku[i][k] == c || sudoku[k][j] == c)
{
return 0;
}
}
return 1;
}
int verif_bloc(int sudoku[9][9], int x, int y)
{
int I=x/3,J=y/3,i,j,c;
int a[9]={0,0,0,0,0,0,0,0,0};
for (i = 0; i < 3; i++)
{
for (j = 0; j < 3; j++)
{
c=sudoku[I*3+i][J*3+j];
if (c!=0)
{
if (a[c-1]==0)
{
a[c-1]=1;
}
else
{
return 0;
}
}
}
}
return 1;
}
void cherche_libre(int sudoku[9][9], int *pi, int *pj)
{
int i, j;
for (i=0; i<9; i++)
{
for (j=0; j<9; j++)
{
if (!sudoku[i][j])
{
*pi=i;
*pj=j;
return;
}
}
}
*pi=(-1);
*pj=(-1);
return;
}
int est_completement_rempli(int sudoku[9][9])
{
int i, j;
cherche_libre(sudoku,&i,&j);
if (i == (-1))
{
return 1;
}
return 0;
}
void cherche_solutions(int sudoku[9][9])
{
int i,j,c,h,k;
if (est_completement_rempli(sudoku))
{
printf("Solution:\n");
for (k=0;k<9;k++)
{
for (h=0;h<9;h++)
{
printf(" %d | ", sudoku[k][h]);
}
}
return;
}
else
{
cherche_libre(sudoku,&i,&j);
for (c=1; c<10; c++)
{
if (chiffre_possible_ligne_colonne(sudoku,i,j,c))
{
sudoku[i][j]=c;
if (verif_bloc(sudoku,i,j))
{
cherche_solutions(sudoku);
}
sudoku[i][j]=0;
}
}
}
} |
Partager