pattern-4

1:
#include<stdio.h>
int main()
{
    int row,space,star,n;
    printf("please enter the number of lines:");
    scanf("%d",&n);
    for(row=1;row<=n;row++)
    {
        for(space=n-row;space>=0;space--)
    {
            printf(" ");
    }
    for(star=1;star<=2*row-1;star++)
    {
        printf("*");
    }
    printf("\n");
    }
    for(row=n;row>=1;row--)
    {
        for(space=n-row;space>=0;space--)
    {
            printf(" ");
    }
    for(star=1;star<=2*row-1;star++)
    {
        printf("*");
    }
    printf("\n");
    }
return 0;
}

input: 7
output:             
                                                        *
                                                      ***
                                                    *****
                                                  *******
                                                *********
                                              ***********
                                            *************
                                            *************
                                              ***********
                                                *********
                                                  *******
                                                    *****
                                                      ***
                                                        *
                                         

pattern-3

1:
#include<stdio.h>
int main()
{
    int row,space,star,n;
    printf("please enter the number of lines:");
    scanf("%d",&n);
    for(row=n;row>=1;row--)
    {
        for(space=0;space<row;space++)
    {
            printf(" ");
    }
    for(star=n;star>=row;star--)
    {
        printf("*");
    }
    printf("\n");
    }
return 0;
}

input: 7
output:             
                                        *
                                      **
                                    ***
                                  ****
                                *****
                              ******
                            *******




  
2:  
#include<stdio.h>
int main()
{
    int row,space,star,n;
    printf("please enter the number of lines:");
    scanf("%d",&n);
    for(row=n;row>=1;row--)
    {
        for(space=n;space>row;space--)
    {
            printf(" ");
    }
    for(star=1;star<=row;star++)
    {
        printf("*");
    }
    printf("\n");
    }
return 0;
}
 
input: 7
output:             
                                           *******
                                             ******
                                               *****
                                                 ****
                                                   ***
                                                     **
                                                       *

                             
           
                    

pattern-2

1:
#include<stdio.h>
int main()
{
    int row,space,star,n;
    printf("please enter the number of lines:");
    scanf("%d",&n);
    for(row=1;row<=n;row++)
    {
        for(space=n-row;space>=0;space--)
    {
            printf(" ");
    }
    for(star=1;star<=2*row-1;star++)
    {
        printf("*");
    }
    printf("\n");
    }
return 0;
}

input: 7
output:
                                *
                              ***
                            *****
                          *******
                        *********
                      ***********
                    *************

2:
#include<stdio.h>
int main()
{
    int row,space,star,n;
    printf("please enter the number of lines:");
    scanf("%d",&n);
    for(row=n;row>=1;row--)
    {
        for(space=n-row;space>=0;space--)
    {
            printf(" ");
    }
    for(star=1;star<=2*row-1;star++)
    {
        printf("*");
    }
    printf("\n");
    }
return 0;
}


input: 7
output:
  
                    *************
                      ***********
                        *********
                         *******
                           *****
                            ***
                              *

pattern-1

1:
#include <stdio.h>

int main()
{
int row,star,n;
printf("please enter the number of lines:",n);
scanf("%d",&n);
for(row=1;row<=n;row++)
    {
    for(star=1;star<=row;star++)
    {
        printf("*");
    }
printf("\n");
    }
return 0;
}

input:7
output:
*
**
***
****
*****
******
*******

2:
#include <stdio.h>

int main()
{
int row,star,n;
printf("please enter the number of lines:",n);
scanf("%d",&n);
for(row=1;row<=n;row++)
    {
    for(star=n;star>=row;star--)
    {
        printf("*");
    }
printf("\n");
    }
return 0;
}

input:7
output:
*******
******
*****
****
***
**
*

loop(8)

1:
#include <stdio.h>
///***summation of even numbers:
///***2+4+6+8+.....+n
int main()
{
 int a,b,sum=0;
 printf("please enter a number:");
 scanf("%d",&b);
 for(a=2;a<=b;a=a+2){
    sum=sum+a;
}
    printf("The sum of even number is:%d",sum);
return 0;
}

input: 6
output:12        ///***2+4+6=12

2:
#include <stdio.h>
///summation of odd numbers:
///1+3+5+7+9+11.........+n

int main()
{
 int a,b,sum=0;
 printf("please enter a number:");
 scanf("%d",&b);
 for(a=1;a<=b;a=a+2){
    sum=sum+a;
}
    printf("The sum of odd number is:%d",sum);
return 0;
}
 
input: 6
output:9       ///***1+3+5=9

3:
#include <stdio.h>
///1^2+2^2+3^2+.......+n^2
int main()
{
int a,b,sum=0;
printf("please enter a number:");
while(scanf("%d",&b) !=EOF){ ///***here EOF is END OF FUNCTION
for(a=1;a<=b;a++){
   sum=sum+a*a;
   }
printf("The sum is=%d ",sum);
}
return 0;
}
 
input: 7
output: 140   ///***1^2++2^2+3^2+4^2+5^2+6^2+7^2=140

loop(7)

1:
 #include <stdio.h>
///***counting 
 int main()   
 {  
     int n = 13;  
     int i;  
     for(i = 1; i <= 10; i++) {  
         printf("%d X %d = %d\n", n, i, n*i);  
     }  
     return 0;  
 }

output:
13 X 1 = 13
13 X 2 = 26
13 X 3 = 39
13 X 4 = 52
13 X 5 = 65
13 X 6 = 78
13 X 7 = 91
13 X 8 = 104
13 X 9 = 117
13 X 10 = 130

2:(other way)
 #include <stdio.h>
///***counting
 int main()
 {
     int n = 13;
     int i = 1;
     while (i <= 10) {
         printf("%d X %d = %d\n", n, i, n*i);
         i = i + 1;
     }
     return 0;
 }



output:
13 X 1 = 13
13 X 2 = 26
13 X 3 = 39
13 X 4 = 52
13 X 5 = 65
13 X 6 = 78
13 X 7 = 91
13 X 8 = 104
13 X 9 = 117
13 X 10 = 130

3:
#include <stdio.h>
///***calculating program:

int main()
{
int a,b,x;
printf("please enter three number:",a,b,x);
scanf("%d%d%d",&a,&b,&x);

   if(x==1){
    printf("The addition is:%d",a+b);
   }
  else if(x==2){
    printf("The substraction is:%d",a-b);
   }
   else if(x==3){
    printf("The division is:%d",a/b);
   }
    else if(x==4){
    printf("The multiplication is:%d",a*b);
   }
   else if(x==5){
    printf("The modulus number is:%d",a%b);
   }
   return 0;
}

output: depend on your value

loop(6)

1:
#include <stdio.h>
///***loop continue:
int main()
{
int i;
for(i=0;i<=5;i++){
    printf(" %d",i);
        if(i==2)
        continue;
    printf("%d",i);
}
return 0;
}
output:  00 11 2 33 44 55

2:
#include <stdio.h>
///***print all integer in accending order:

int main()
{
int i,start,end;
scanf("%d %d",&start,&end);
for(i=start;i<=end;i++){
    printf("% d ",i);
}
return 0;
}

input:3 9
output:3 4 5 6 7 8 9

3:
#include <stdio.h>
///print all integer in accending order:

int main()
{
int temp,i,start,end;
scanf("%d %d",&start,&end);
if(start>end){
    temp=start;
    start=end;
    end=temp;
}
for(i=start;i<=end;i++){
    printf("% d ",i);
}
return 0;
}

input:3 9
output:3 4 5 6 7 8 9

loop(5)

1:
#include <stdio.h>
///***while loop using increment operator:
int main()
{
int a,b;
    scanf("%d %d",&a,&b);
    while(a<=b){

        printf("%d ",a);
        a++;
}
return 0;
}

input:1 5
output:1 2 3 4 5

2:
#include <stdio.h>
///***loop break:
int main()
{
int i;
for(i=0;i<=5;i++){
    printf("% d ",i);
    if(i==3)
        break;
}
return 0;
}

output: 0 1 2 3

3:
#include <stdio.h>
///***loop break:
int main()
{
int i;
for(i=0;i<=5;i++){
        if(i==3)
        break;
    printf("% d ",i);
}
return 0;
}


output: 0 1 2

loop(4)

1:
#include <stdio.h>
#include <stdlib.h>
///***terminating program:
int main()
{
int a;
while(scanf("%d",&a)&& a!=0){
    printf("%d\n",a);
}
return 0;
}

output:the program will terminate when you will input zero:

2:
#include <stdio.h>
///***summation:

int main()
{
 int a,sum,range;
 printf("please enter a number:",range);
 scanf("%d",&range);
 sum=0;
for(a=1;a<=range;a++)
      sum+=a;
 printf("\nthe sum of 1 to %d is %d\n",range,sum);
 return 0;
}



input: 6
output: 21

3:
#include <stdio.h>
///***print multiply number:

int main()
{
int a,b,sum;
a=5;
for(b=1;b<=5;b++){
sum=a*b;
printf(" %d ",sum);
}
return 0;
}




 output: 5 10 15 20 25

loop-Basic(3)

1:
#include <stdio.h>
///***Basic for loop:

int main()
{
int a;
for(a=1;a<=5;a++)
    printf(" %d ",a);
return 0;
}

output: 1 2 3 4 5

2:
#include <stdio.h>
///while loop:

int main()
{
int a=1;
while(a<=5){
    printf(" %d ",a);
    a++;
}
return 0;
}

output: 1 2 3 4 5 

3:
#include <stdio.h>
///loop statement:

int main()
{
int a=1;
loop:
    printf(" %d ",a);
    a++;
    if(a<=5)
        goto loop;
    return 0;
}



output: 1 2 3 4 5 

4:
#include <stdio.h>
///do loop:

int main()
{
int a=1;
do{
    printf(" %d ",a);
    a++;
}
while(a<=5);
return 0;
}

output: 1 2 3 4 5