# Answer to Question #4302 in AJAX | JavaScript | HTML | PHP for Johann

Question #4302

Print out all numbers between 0 & 1000 which are evenly divisible by three OR seven. Print them on different lines.Print out all numbers between 0 & 1000 which are evenly divisible by three OR seven. Print them on different lines.

7) Write a loop which prints out every third number between 11 & 21 inclusive.

8) Write a loop which calculates 5 factorial.

9) Write a loop which calculates the average of all of the numbers which are evenly divisible by 3 and lie between 70 & 101 inclusive. The average should be a double.

10) Write a loop which sums up 1/20 + 1/19 + 1/18 +...1/2.

7) Write a loop which prints out every third number between 11 & 21 inclusive.

8) Write a loop which calculates 5 factorial.

9) Write a loop which calculates the average of all of the numbers which are evenly divisible by 3 and lie between 70 & 101 inclusive. The average should be a double.

10) Write a loop which sums up 1/20 + 1/19 + 1/18 +...1/2.

Expert's answer

#include <stdio.h>

//~ Print out all numbers between 0 and 1000

which are evenly divisible by three OR seven.

//~ Print them on different

lines.

void PrintDiv3_7()

{

int i=0;

int cnt3=0; // counter of

period 3

int cnt7=0; // counter of period 7

while (i<1001)

{

if ((cnt3==0) || (cnt7==0))

printf("%d \n", i);

cnt3=(cnt3<2)?

cnt3+1 : 0;

cnt7=(cnt7<6)? cnt7+1 :

0;

i++;

};

printf("\n\n");

};

//~ 7) Write a loop which

prints out every third number between 11 and 21 inclusive.

void

PrintEveryThird()

{

int i;

for (i=11+2; i<22;

i+=3)

{

printf("%d ", i);

};

printf("\n\n");

};

//~ 8)

Write a loop which calculates 5 factorial.

void Calc5Fact()

{

int

i;

int f=1;

for(i=2; i<6; i++)

f*=i;

printf("5! =

%d\n\n",f);

};

//~ Print out all numbers between 0 and 1000

which are evenly divisible by three OR seven.

//~ Print them on different

lines.

void PrintDiv3_7()

{

int i=0;

int cnt3=0; // counter of

period 3

int cnt7=0; // counter of period 7

while (i<1001)

{

if ((cnt3==0) || (cnt7==0))

printf("%d \n", i);

cnt3=(cnt3<2)?

cnt3+1 : 0;

cnt7=(cnt7<6)? cnt7+1 :

0;

i++;

};

printf("\n\n");

};

//~ 7) Write a loop which

prints out every third number between 11 and 21 inclusive.

void

PrintEveryThird()

{

int i;

for (i=11+2; i<22;

i+=3)

{

printf("%d ", i);

};

printf("\n\n");

};

//~ 8)

Write a loop which calculates 5 factorial.

void Calc5Fact()

{

int

i;

int f=1;

for(i=2; i<6; i++)

f*=i;

printf("5! =

%d\n\n",f);

};

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