How many arrangements are there for two-color balls?

The arrangement of Fucai two-color ball 1-33 is: 1 107568 groups.

The specific algorithm is: 33× 32× 3/kloc-0 /× 30× 29× 28 ÷ 6 ÷ 5 ÷ 4 ÷ 3 ÷ 2 ÷1=100.

Two-color ball is a game of China Welfare Lottery. China welfare lottery "two-color ball" is a kind of "lottery-type" welfare lottery which is uniformly organized and distributed by China Welfare Lottery Distribution Management Center and sold nationwide. Since February 16, 2003, it has been sold on the national network. The computer network system is used for distribution and sales, and TV lottery is held regularly.

The provincial welfare lottery distribution center participating in the sales of "two-color ball" is responsible for the specific organization and management of the sales activities of "two-color ball" in this area under the direct leadership of Zhongfucai Center.

Development course:

In 2003, after 1 years of market preparation, the two-color ball was officially put on sale on February 6, 2003. "More big prizes, more small prizes", double-zone number selection, the characteristics of a blue ball attracted people's attention. After the prize pool exceeded 100 million yuan, the introduction of the "inverted Sanqi" lottery added more charm to the two-color ball and promoted its development.

In the sales of 10 month in that year, the two-color ball completed 89 lottery draws, and the cumulative sales reached 2.829 billion yuan.

On June 23rd, 2003 10, the fund of the 70th prize pool of two-color ball broke through1000000 yuan for the first time. On the same day, the lottery center revised the relevant provisions of the rules of the two-color ball game and launched the "Inverted Sanqi" lottery; Results In June of that year, 65438+February 2 1, the single prize of the second prize of two-color ball reached 3594732 yuan.

In 2004, the two-color ball was launched in an all-round way, and the number of joint sales provinces increased to 3 1 unit, and the lottery frequency was increased, and the column of "Fucai Aid List" was launched.

In 2005, on the basis of perfection, the two-color ball began to pay attention to the construction of integrity. With the development of "approaching the two-color ball" activity, the lottery credit construction has been pushed to a climax, and the lottery credit system has also become the focus of social attention.

On April 12 of that year, the first public delegation of "Approaching the Two-color Ball" composed of Shanxi public representatives walked into the scene of the two-color ball, and the "Approaching the Two-color Ball" activity was officially launched.