Poor lifting Iteration 03/10

Poor lifting Iteration 03/10

The For loop has two classes:

1. Poor lifting:

Go through all the possible situations and use the IF condition to filter out the conditions that satisfy the condition.

The For loop has two classes:

2. Poor lifting:

Go through all the possible situations and use the IF condition to filter out the conditions that satisfy the condition.

For loop for (int i = 1; i<=5;i++)

{

Circulation body;

}

While style int i= 1;

while (expression (i<=5))

{

Circulation body;

State change (i++);

}

Do While style do

{

Circulation body;

State change (i++);

}while (expression (i<=5))

Practice:

1. Unit to send a 150 yuan shopping card, take to the supermarket to buy three kinds of washing supplies. Shampoo 15 yuan, soap 2 yuan, toothbrush 5 yuan. Please just spend 150 yuan, how many kinds of buy law, no kind of buying method are all buy a few samples?

Set Shampoo x 150/15==10

Toothbrush y 150/5==30

Soap Z 150/2==75

int a = 0;

int sum = 0;

for (int x = 0; x <= × x + +)

{

for (int y = 0; y <=; y++)

{

for (int z = 0; z <=; z++)

{

sum++;

if (x + 5 * y + 2 * z = = 150)

{

a++;

Console.WriteLine ("First" + A + "seed buy method, shampoo" + x + "bottle, toothbrush" + y + "put, soap" + z + "block.) ");

}

}

}

}

Console.WriteLine ("A total of" + A + "buy method. ");

Console.WriteLine ("Total calculation" + Sum + "times.") ");

2, Hundred chicken Hundred Money: Rooster 2 text Money A, hen 1 text money One, chicken half text money A, total only 100 text money, how to gather enough 100 chickens in the case just spend 100 money?

Rooster x,50

Hen y,100

Chick z,200

int sum = 0;

int sum1 = 0;

for (int x = 0; x <= 50;x++)

{

for (int y = 0; y <= 100;y++)

{

for (int z = 0; z <= 200;z++)

{

sum1++;

if ((x+y+z==100) && (2*x+1*y+0.5*z==100))

{

sum++;

Console.WriteLine ("+sum+" Method: Rooster "+x+" only, hen "+y+" only, Chick "+z+" only. ");

}

}

}

}

Console.WriteLine ("+sum1+" is calculated in total.) ");

3, the paper can be folded in infinite times, the paper thickness of 0.07 mm. How many times do I have to fold at least 8848?

int a = 7;

int b = 884800000;

for (int i = 1;; i++)

{

A *= 2;

if (a >= b)

{

Console.WriteLine ("This is the first" + i + "fold.) ");

Console.WriteLine ("Height is" + a);

Break

}

}

Poor lifting Iteration 03/10