SESSIONS 4(OPERATORS).md

1). Simple Function

  #include <stdio.h>
  #include <ctype.h>
  #include <string.h>
  int main() 
 {
  char str[30];
  char str2[]="zach";
  scanf("%s", str);
  int result;
  str[0]=tolower(str[0]);
  result=strcmp(str,str2);
  if (result==0) 
  {
      printf("%d", 18);
  }
  else
  {
      printf("%d", 0);
  }
  return 0;
}

2). SWAP

  #include <stdio.h>
  int main()
  {
  int arr[3],i;
  for (i = 0; i < 3; i++) 
  {
    scanf("%d", &arr[i]);
  }
  printf("%d\n", arr[2]);
  printf("%d\n", arr[0]);
  printf("%d\n", arr[1]);
  return 0;
  }

3). Operators

    #include <stdio.h>
    int main()
    {
    int n,a,b,i=0;
    scanf("%d",&n);
    for(i=0;i<n;i++)
    {
        scanf("%d%d",&a,&b);
        if(a<b)
            printf("<\n");
        else if (a>b)
            printf(">\n");
        else
            printf("=\n");
    }
    return 0;
    }

4). Remainder

        #include <stdio.h>
        int main() 
        {
        int a,b, quotient, remainder;
        scanf("%d",&a);
        scanf("%d",&b);
        quotient=(int) (a/b);
        remainder=a%b;
        printf("%d\n", quotient);
        printf("%d\n", remainder);
        return 0;
        }

5). Display

        #include<stdio.h>
        #include<math.h>
        int main()
        {
               int n,i;
              scanf("%d",&n);
              for (i=(int)sqrt(n);i>=1;-1)
               if(n%i==0)
               {
                     printf("%d %d", i,n/i);
                     break;
               }
         return 0;
         }

6). SERIES

        #include<stdio.h>
        #include<math.h>
        int main()
        {
              int i,N;
              float sum;
              int count;
              scanf("%d",&N);
              sum=0.0f;
              count=1;
              for(i=1;i<=N; i++)
              {
            sum= sum + ( (float) (pow (count, 2))       /(float(pow(count,3)));
                    
       count+=2;
              }
              printf("Sum of the series is: %f", sum);
              return 0;
        }

7).IPL

      #include<stdio.h>
      int main()
     {int arr[3],i;
      for (i=0;i<3;i++)
      {scanf("%d",&arr[i]);}
     printf("%d %o %x",arr[0],arr[1],arr[2]);
    return 0;
     }

8).INTEGER

   #include <stdio.h>

  unsigned int count1Bits(unsigned int n)
   {
       unsigned int count = 0;
     while (n) {
 count += n & 1;
n>>= 1;
    }
   return count;
  }
  int main() 
  {
unsigned int n;
 scanf("%d", &n);
	printf("%d", count1Bits(n));
return 0;
  }  

9).TOURNAMENT

 #include <stdio.h>
int main()
{
int num,count = 0;
scanf("%d",&num);
 while (num > 1) {
num =(int) (num / 2 + num % 2);
count += 1;
 }
printf("%d", count);
return 0;
 }

10). Nth FIBO

#include<stdio.h>
int Fibonacci_Series(int);
int main()
{
	int Number, Fibonacci;
	scanf("%d", &Number);
	Fibonacci = Fibonacci_Series(Number);
	printf("%d", Fibonacci);
	 return 0;
}
int Fibonacci_Series(int Number)
{
	if ( Number == 0 )
			return 0;
	else if ( Number == 1 )
			return 1;
	else
			return ( Fibonacci_Series(Number - 1) + Fibonacci_Series(Number - 2) );
}

19). Greddy Puppy

#include <stdio.h>
int main() 
{
int t,n,k;
scanf("%d", &t);
int i=0,j=0, max=0;
for (i=0;i<t;i++)
{
	scanf("%d%d", &n,&k);
		for(j=1;j<=k;j++)
	{
		if((n%j)>max)
	{
			max=n%j;
	}
	}
	printf("%d\n",max);
	max=0;
}
return 0;
}

20). Finding Bitwase EXOR of Two Numbers

#include <stdio.h>
int main()
{
int a,b;
scanf("%d", &a);
scanf("%d",&b);
printf("Bitwise EX-OR of ");
printf("%d", a);
printf(" and ");
printf("%d",b);
printf(" is= ");
printf("%d" ,a^b);
return 0;
}

21). Case of Zeros and Ones

#include<stdio.h>
#include<stdlib.h>
int main()
{
	int n,i,c1=0,c0=0;
	char c[200001];
	scanf("%d", &n);
	scanf("%s",c);
	for(i=0;i<n;i++)
	if(c[i]=='1')
			c1++;
	else
			c0++;
		printf("%d",abs(c1-c0));
	return 0;
}

22). Shape Up

#include<stdio.h>
int main()
{
	int a;
	scanf("%d", &a);
	switch(a)
	{
		case 7:
 			printf("Heptagon");
 			break;
		case 8:
			printf("Octagon");
 			break;
		case 9:
 			printf("Nanogon");
 			break;
		case 10:
 			printf("Decagon");
 			break;
	default:
			printf("Not identified");
	}
	return 0;
}

TO BE CONTINUED..........