C++ (Cpp) sum2d Examples

Example #1

File: vararr2d.c Project: jnksu/CPP

int main(void)
{
	int row,col;
	int rs = 3;
	int cs = 10;
	int junk[ROWS][COLS] = {
		{2, 4, 6, 8},
		{3, 5, 7, 9},
		{12, 10, 8, 6}
	};
	
	int more_junk[ROWS - 1][COLS + 2] = {
		{20, 30, 40, 50, 60, 70},
		{5, 6, 7, 8, 9, 10}
	};
	
	int varr[rs][cs]; // 变长数组
	
	for(row = 0; row < rs; row++)
		for(col = 0; col < cs; col++)
			varr[row][col] = row * col + col;
	printf("3x5 array\n");
	printf("Sum of all elements = %d\n",
			sum2d(ROWS, COLS, junk));
	printf("2x6 array\n");
	printf("Sum of all elements = %d\n",
			sum2d(ROWS - 1, COLS + 2, more_junk));
	printf("3x10 VLA\n");
	printf("Sum of all elements = %d\n",
			sum2d(rs,cs,varr));
			
	return 0;
}

Example #2

File: array2d.c Project: wcnnbdk1/hello_world

int main(void)
{
    int junk[ROWS][COLS] = {{2, 4, 6, 8}, {3, 5, 7, 9}, {12, 10, 8, 6}};
    sum_rows(junk, ROWS);
    sum_cols(junk, ROWS);
    printf("Sum of all elements = %d\n", sum2d(junk, ROWS));
    return 0;
}

Example #3

File: 10.18ex.c Project: Graning/Gran-Code

int main (void)
{
  int i, j;
  int rs = 3;
  int cs = 10;
  int junk[ROWS][COLS] = {
    {2, 4, 6, 8},
    {3, 5, 7 ,9},
    {12, 10, 8, 6}
  };

  int morejunk[ROWS-1][COLS+2] = {
    {20, 30, 40, 50, 60, 70},
    {5, 6, 7, 8, 9, 10}
  }
};

int var[rs][cs]; //变长数组
{
for (i = 0; i < rs; i++)
    for (j = 0; j < cs; j++)
        varr[i][j] = i * j + j;
printf("3*5 array\n");
printf("Sum of all elements = %d\n", sum2d(ROWS, COLS, junk));

printf("3*5 array\n");

printf("Sum of all elements = %d\n", sum2d (ROWS - 1, COLS + 2, morejunk));

printf("3*10 VLA\n");
printf("Sum of all elements = %d\n", sum2d (rs, cs, varr));

return 0;
}

//带有一个 VLA 参数的函数
int sum2d (int rows, int cols, int ar[rows][cols])
{
  int r;
  int c;
  int tot = 0;
  for (r = 0; r < rows; r++)
      for (c = 0; c < cols; c++)
          tot += ar[r][c];
  return tot;
}

Example #4

File: vararr2d.c Project: tuling56/CPP

int vararr(void)
{
     int i, j;
     int rs = 3;
     int cs = 10;
     int junk[ROWS][COLS] = {
            {2,4,6,8},
            {3,5,7,9},
            {12,10,8,6}
     };
     
     int morejunk[ROWS-1][COLS+2] = {
            {20,30,40,50,60,70},
            {5,6,7,8,9,10}
     };
     
     int varr[rs][cs];  // VLA
     
     for (i = 0; i < rs; i++)
         for (j = 0; j < cs; j++)
             varr[i][j] = i * j + j;

     printf("3x5 array\n");
     printf("Sum of all elements = %d\n", 
             sum2d(ROWS, COLS, junk));

     printf("2x6 array\n");
     printf("Sum of all elements = %d\n",
             sum2d(ROWS-1, COLS+2, morejunk));

     printf("3x10 VLA\n");
     printf("Sum of all elements = %d\n",
             sum2d(rs, cs, varr));

     return 0;
}