私は試した:
void read_grid_from_file( int** grid, const size_t row, const size_t column, FILE* inf ) {
size_t x, y;
for( x = 0; x < row; ++x ) {
for( y = 0; y < column; ++y ) {
fscanf( inf, "%d", &grid[x][y] );
printf( "%d ", grid[x][y] );
}
printf( "\n" );
}
}
int main( int argc, char *argv[] ) {
FILE* inf; // input file stream
FILE* outf; // output file stream
char pbm_name[20];
size_t row = 0;
size_t column = 0;
/*
if( argc != 3 ) {
prn_info( argv[0] );
exit( 1 );
}
*/
inf = fopen( "infile.txt" , "r" );
outf = fopen( "outfile.txt", "w" );
fgets( pbm_name, 20, inf );
fscanf( inf, "%d", &row );
fscanf( inf, "%d", &column );
int** grid = allocate_memory_for_grid( row, column );
read_grid_from_file( grid, row, column, inf );
show_grid( grid, row, column ); //for debugging
}
入力ファイルは次のとおりです。
P1
12 14
1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1
1 1 0 0 0 0 0 0 0 0 0 0
1 1 0 0 0 0 0 0 0 0 0 0
1 1 0 0 0 0 0 0 0 0 0 0
1 1 0 0 0 0 0 0 0 0 0 0
1 1 1 1 1 1 1 1 0 0 0 0
1 1 1 1 1 1 1 1 0 0 0 0
1 1 0 0 0 0 0 0 0 0 0 0
1 1 0 0 0 0 0 0 0 0 0 0
1 1 0 0 0 0 0 0 0 0 0 0
1 1 0 0 0 0 0 0 0 0 0 0
1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1
出力は次のとおりです。
1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 0 0
0 0 0 0 0 0 0 0 1 1 0 0 0 0
0 0 0 0 0 0 1 1 0 0 0 0 0 0
0 0 0 0 1 1 0 0 0 0 0 0 0 0
0 0 1 1 1 1 1 1 1 1 0 0 0 0
1 1 1 1 1 1 1 1 0 0 0 0 1 1
0 0 0 0 0 0 0 0 0 0 1 1 0 0
0 0 0 0 0 0 0 0 1 1 0 0 0 0
0 0 0 0 0 0 1 1 0 0 0 0 0 0
0 0 0 0 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1
Press any key to continue . . .
そのマトリックスはどこから来たのですか?