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

loop(2)

1:
#include <stdio.h>
/// if else basic:

int main()
{
int a;
printf("Please enter a number greter than five:");
scanf("%d",&a);
if(a>=5)
    printf("%d",a*a);
else
    printf("ERROR!!!\n");
return 0;
}

output: depend on your value

2:
#include <stdio.h>
///nested if else:

int main()
{
int a,b,c;
scanf("%d%d%d",&a,&b,&c);
if(a>b)
{
if(a>c)
printf("The result is:%d",a);
else
    printf("The result is:%d",c);
}
else
{
    if(b>c)
        printf("The result is:%d",b);
    else
        printf("The result is:%d",c);
}
return 0;
}

output: depend on your value

3:
#include <stdio.h>
///if else ladder:

int main()
{
int mark;
scanf("%d",&mark);
if(mark>=80) printf("your grade point is:+A");
else if(mark>=70) printf("your grade point is:A");
else if(mark>=60) printf("your grade point is:-A");
else if(mark>=50) printf("your grade point is:B");
else if(mark>=40) printf("your grade point is:C");
else printf("Failed!!!");
return 0;
}


output: depend on your value

loop(1)

1:
#include <stdio.h>
///*** compound statement:
int main()
{
int a;
if(5>10){
    scanf("%d",&a);
    printf("%d",5-a);
}
else
    printf("(The first condition is wrong)\n");
return 0;
}




output: The first condition is wrong

2:
#include <stdio.h>
///The program will print odd number:

int main()
{
int a,b;
for(b=1;b<=5;b++){
    a=(2*b-1);
    printf(" %d ",a);
    if(a>=9)
        break;
}
return 0;
}

output: 1 3 5 7 9

3:
#include <stdio.h>
///The program will print even number:

int main()
{
int a,b;
for(b=1;b<=5;b++){
    a=(2*b-1)+1;
    printf(" %d ",a);
    if(a>=10)
        break;
}
return 0;
}
 
output: 2 4 6 8 10

switch case

1:
#include<stdio.h>
///vowel_consonent
int main(){

     char vowel;
     scanf("%c",&vowel);

     switch(vowel){

        case 'a': printf("It is vowel");
        break;

        case 'e': printf("It is vowel");
        break;

        case 'i': printf("It is vowel");
        break;

        case 'o': printf("It is vowel");
        break;

        case 'u': printf("It is vowel");
        break;

        default:printf("It is consonent");
        break;

     }
return 0;
}

output: depend on your value

2:
#include <stdio.h>
///switch case:

int main()
{
int number;
scanf("%d",&number);
switch(number){
case 1:
    printf("The number is 1\n");
    break;
    case 2:
    printf("The number is 2\n");
    break;
    case 3:
    printf("The number is 3\n");
    break;
}
return 0;
}

output: depend on your value

Basic input & output(2)

1:
#include<stdio.h>
///***formatted output:
int main( )
{
printf("%d",12345);
return 0;
}

output: 12345

2:
#include<stdio.h>
///***formatted output:
int main( )
{
printf("%5d",123);
return 0;

}

output:  123
///***it will show two space before 123





3:
#include<stdio.h>
///***formatted output:
int main( )
{
printf("%-5d %-5d",123,456);
return 0;

}

output:123  456

4:
#include<stdio.h>
///***formatted output:
int main( )
{
printf("%05d%5d",123,456);
return 0;

}

output: 00123  456

5:
#include<stdio.h>
///***formatted output:
int main( )
{
printf("%6.2f",12.0);
return 0;

}


output:  12.00  ///***one space before 12.00


 6:
#include<stdio.h>
///***formatted output:
int main( )
{
printf("%*.2f",6,12.0);
return 0;

}

output:  12.00

7:
#include<stdio.h>
///***formatted output:
int main( )
{
printf("%10.*f",2,12.0);
return 0;

}

output:     12.00 ///***five space before 12.00




 

Basic input & output(1)

1:
#include <stdio.h>
///***input operation:
int main(){
   
      int a;
      scanf("%4d",&a);
      printf("%d",a);
     
      return 0;
}

input: 123456

output:1234

2:
#include<stdio.h>
///***printf rules:
int main(){
   
      int a=5,b=6;
      printf("%d %d %d",b,a,a+b);
      return 0;
}

output: 6 5 11

3:
#include<stdio.h>
///***printf function works from the right side
int main(){
   
      int a,b;
      printf("%d %d %d",a+b,b=5,a=4);
      return 0;
}

output:9 5 4

4:

#include<stdio.h>
///***printf function works from the right side
int main(){
   
      int a,b;
      printf("%d %d %d",b=5,a=4,a+b);
      return 0;
}

output: 5 4 garbage
///***because printf function works from the right side

Math(5)

1:
 #include<stdio.h>
///***subtraction without using(-)
int main(){
  
    int a,b;
    int sum;
    printf("Enter any two integers: ");
    scanf("%d%d",&a,&b);
    sum = a + ~b + 1;
    printf("Difference of two integers: %d",sum);

    return 0;
}

output: depend on your value


///***(a+(-b-1)+1=ans

2:
 #include<stdio.h>
///***addition without using(+)
int main(){

    int a,b;
    int sum;

    printf("Enter any two integers: ");
    scanf("%d%d",&a,&b);
    sum = a - ~b -1;
    printf("Sum of two integers: %d",sum);

    return 0;
}

output: depend on your value

///***(a-(-b+1)+1

3:
#include <stdio.h>
///***find largest number
int main(){
      int a, b, c;
      printf("Enter three numbers: ");
      scanf("%d %d %d", &a, &b, &c);
      if(a>=b && a>=c)
         printf("Largest number = %d", a);
      if(b>=a && b>=c)
         printf("Largest number = %d", b);
      if(c>=a && c>=b)
         printf("Largest number = %d", c);
      return 0;
}



output: depend on your value

Math(4)

1:
#include<stdio.h>
///***NCR
int main(){
  int n,r,ncr;
  printf("Enter any two numbers->");
  scanf("%d %d",&n,&r);
  ncr=fact(n)/fact(r)*fact(n-r);
  printf("The NCR factor of %d and %d is %d",n,r,ncr);
  return 0;
}
 int fact(int n){
  int i=1;
  while(n!=0){
      i=i*n;
      n--;
  }
  return i;
 }



output: depend on your value

2:

#include<stdio.h>
///***NPR
int main(){
  int n,r,ncr;
  printf("Enter any two numbers->");
  scanf("%d %d",&n,&r);
  ncr=fact(n)/fact(n-r);
  printf("The NPR factor of %d and %d is %d",n,r,npr);
  return 0;
}
 int fact(int n){
  int i=1;
  while(n!=0){
      i=i*n;
      n--;
  }
  return i;
 }

output: depend on your value

3:
#include<stdio.h>
///***Leap year
int main(){
    int year;

    printf("Enter any year: ");
    scanf("%d",&year);

    if(((year%4==0)&&(year%100!=0))||(year%400==0))
         printf("%d is a leap year",year);
    else
         printf("%d is not a leap year",year);

    return 0;
}

output: depend on your value

Math(3)

1:
 #include <stdio.h>
///***celsius-farenheit 
 int main()  
 {  
     double celsius, farenheit;  
     printf("Enter the temperature in celsius: ");  
     scanf("%lf", &celsius);  
     farenheit = 1.8 * celsius + 32;  
     printf("Temperature in farenheit is: %.2lf\n", farenheit);  
     return 0;  
 }

output:   depend on your value

2:
#include<stdio.h>
///***L.C.M
int main(){
    int x,y,m,i;
    printf("Insert any two number: ");
    scanf("%d%d",&x,&y);
     if(x>y)
          m=y;
     else
          m=x;
     for(i=m;i>=1;i--){
          if(x%i==0&&y%i==0){
              printf("L.C.M of two number is : %d",x*y/i) ;
              break;
          }
     }
     return 0;
 }


output:   depend on your value

3:
#include<stdio.h>
///***G.C.D
int main(){
    int x,y,m,i;
    printf("Insert any two number: ");
    scanf("%d%d",&x,&y);
     if(x>y)
          m=y;
     else
          m=x;
     for(i=m;i>=1;i--){
          if(x%i==0&&y%i==0){
              printf("GCD of two number is : %d",i) ;
              break;
          }
     }
     return 0;
 }



output:   depend on your value





 

Math(2)

1:
#include<stdio.h>
///***trapezium

int main(){
float b1,b2,h;
float area;
printf("Enter the size of two bases and height of the trapezium : ");
scanf("%f%f%f",&b1,&b2,&h);
area = 0.5 * ( b1 + b2 ) * h ;
printf("Area of trapezium is: %.2f",area);
return 0;
}

output:depend on your value

2:
#include<stdio.h>
#include<math.h>
///***equilateral triangle
int main(){

    float a;
    float area;
    printf("Enter size of side of the equilateral triangle : ");
    scanf("%f",&a);
    area = sqrt(3)/4*(a*a);
    printf("Area of equilateral triangle is: %.2f",area);
    return 0;
}



output:depend on your value

3:
 #include<stdio.h>
///***cube surface and volume
int main(){

    float a,surface,volume;
    printf("Enter size of any side of a cube : ");
    scanf("%f",&a);
    surface= 6 * (a * a);
    volume = a * a * a;
    printf("Surface area of cube is: %.2f",surface);
    printf("Volume of cube is : %.2f",volume);
    return 0;
}




output:depend on your value

3:
#include<stdio.h>
#define PI 3.141
///***perimeter of circle
    int main()
    {
    float r;
    printf("Enter the radius value:");
    scanf("%f",&r);
    printf("Area of circle : %.2f ", PI*r*r);
    printf("Perimeter of the circle : %.2f ", 2*PI*r);
    return 0;
    }
 

Math(1)

1:
#include<stdio.h>
#include<math.h>
///***triangle
int main(){
    float a,b,c;
    float s,area;
    printf("Enter size of each sides of triangle:");
    scanf("%f%f%f",&a,&b,&c);
    s = (a+b+c)/2;
    area = sqrt(s*(s-a)*(s-b)*(s-c));
    printf("Area of triangle is: %.2f",area);
    return 0;
}


output: depend on your value

2:
#include<stdio.h>
///***rectangle
int main(){
    float l,w;
    float area;
    printf("Enter size of each sides of the rectangle : ");
    scanf("%f%f",&l,&w);
    area = l * w;
    printf("Area of rectangle is: %.2f",area);
    return 0;
}


output: depend on your value 

3:
#include <stdio.h>
#define PI 3.141
///***circle
int main(){
float r, area;
printf("Please enter Radius of circle: ");
scanf("%f", &r);
area = PI * r * r;
printf("Area of cirle is:%.2f\n", area);
return 0;
}

output: depend on your value