清除数字游戏：计算机生成一个1-100范围内的5×5的二维数组，游戏开始时，计算机给出一个数字a，由玩家从该二维数组中选择两个数字，如果两者之和为a，则将这两个数字清除（相应数组元素置0），然后计算机再给出一个数字b，由玩家再次从剩下的数组中选择两个数字，看是否能清除，依次进行直到数组中所有数字被清除，最后计算机显示游戏时间。-Removal of a numbers game: a computer-generated 1-100 within the scope of the two-dimensional 5 × 5 array, the game started, the computer is given a number a, by players from the two-dimensional array to choose the two figures, if the total for a, these two figures will be clear (array elements corresponding to 0), and then the computer and then given a number b, players once again by the array from left to choose the two figures to see if can be removed, until the array in order to carry out All figures were removed in the final game time computer display.