i have a problem here.

#include<stdio.h>
int main (){
int counter;
int x;
int y;
int product;

counter=1;
x=1;
y=1;
product=1;

while (counter<=5){
printf("%d>%d\n",x,y);
x=x+1;
y=y+2;
counter=counter+1;
product=product*y;
}

printf("Product>%d",product);
return 0;
}

well,the product should be 945.but what have printf out is 10395?what is the provlem inside the code?help pls.

What are you trying to do? The x is incremented. But you are not using it anywhere. It would help if you explain what you are trying to do.

The question is write a program that calculates and print the product of the odd integer from 1 to 10.The output of the program is shown below:
1>1
2>3
3>5
4>7
5>9
product>945

Why it has to be 945? What formula do u use to get this result?

* ALWAYS * use code tags on code forums. Forum software turns your code into html junk, otherwise - very hard to study.

``````#include<stdio.h>
int main (){
int counter;
int x;
int product;

counter=0;
x=1;
product=1;

while (counter<5){
counter++; //this is C!
product*=x;
printf("x:%d *= product is: %d\n",x, product);
x+=2;

}

printf("Product>%d",product);
(void) getchar();
return 0;
}``````

See what that adds up to - I haven't run this.

sry,i will do use it next time.back to the question,the product should be 1*3*5*7*9=945.but what the problem is my product become 10395.juz like 1*3*5*7*9*11.but the answer should be 945.dont know why it will become 10395.

erm,the product is right,but the things upper the product is wrong,it should be like this.
1>1
2>3
3>5
4>7
5>9
product>945

So make it describe what it's doing, the way you want it. It's 4 a.m. here, and I wanted something more descriptive. ;)

Write a program that calculates and print the product of the odd integer from 1 to 10.The output of the program is shown below:
1>1
2>3
3>5
4>7
5>9
product>945
*the product =945 because(1*3*5*7*9)
i get everything but juz a problem.(1*3*5*7*9)should be 945,right?but mine one become 10395.

I'm not sure if you checked the code that Adak posted, but that works.

ya,Adak posted is correct but not the right answer.i mean,he get the correct answer but not the right way.he not using the way like the question ask to.

Ah okay, that's an easy fix, to get the output that you want:

``````#include<stdio.h>

int main (){

int counter;

int x;

int product;

counter=0;

x=1;

product=1;

while (counter<5){

counter++; //this is C!

product*=x;

printf("%d>%d\n",counter, x);

x+=2;

}

printf("Product>%d",product);

(void) getchar();

return 0;

}``````

try that, it should give what you want. Let me know

The reason that you get 10395 instead of 945 is because you are doing 11*9*7*5*3*1
In your code you go one step too fast.
Look:

STEP 1.: 1
STEP 2.: 1 * 3
STEP 3.: 1 * 3 * 5
STEP 4.: 1 * 3 * 5 * 7
STEP 5.: 1 * 3 * 5 * 7 * 9 = 945
You are doing this in the code:
STEP 1.: 1 * 3
STEP 5.: 1 * 3 * 5 * 7 * 9 * 11 = 10395

To fix this, you can do different things. but simplest is to do this:
(This is your own code, I only changed position of 1 thing)

``````#include<stdio.h>
int main (){
int counter;
int x;
int y;
int product;

counter=1;
x=1;
y=1;
product=1;

while (counter<=5){
printf("%d>%d\n",x,y);
x=x+1;
//y = y + 2 moved UNDER product = product * y.
counter=counter+1;
product=product*y;
y=y+2;
}

printf("Product>%d",product);
return 0;
}``````

You can also remove x and replace

``printf("%d>%d\n",x,y);``

x here with counter, since you're not really using it for anything else anyway.

1st,let us see what is the different between the wrong 1 and the right 1.
Below this is wrong 1.

``````#include<stdio.h>
int main (){
int counter;
int x;
int y;
int product;

counter=1;
x=1;
y=1;
product=1;

while (counter<=5){
printf("%d>%d\n",x,y);
x=x+1;
y=y+2;
counter=counter+1;
product=product*y;
}

printf("Product>%d",product);
return 0;
}``````

The right 1.

``````#include<stdio.h>
int main (){
int counter;
int x;
int y;
int product;

counter=1;
x=1;
y=1;
product=1;

while (counter<=5){
printf("%d>%d\n",x,y);
product=product*y;
x=x+1;
y=y+2;
counter=counter++;
}

printf("Product>%d",product);
return 0;
}``````

I can't get the right product from the 1st code about juz because my put the thing at wrong location.tat's all.sweat.

By the way,[Alpha]-0mega-,why must move y = y + 2 UNDER product = product * y?i still don't understand.the number for variable y only loop until 9 then it will stop.then,where did that 11 come from?