//practice program 8
#include<stdio.h>
int main()
{ int a=4,b=12,c=-3,res;
res=a>b&&a<c;
printf("%d\n",res);
res=a==c||a<b;
printf("%d\n",res);
res=b>10||b&&c<0||a>0;
printf("%d\n",res);
res=(a/2.0==0.0&&b/2.0!=0.0)||c<0.0;
printf("%d\n",res);
return 0;
}
//comment the output👇

//practice program 9
#include<stdio.h>
int main()
{ int a=20,b=5,result;
float c=20.0,d=5.0;
printf("%d\n",10+a/4*b);
printf("%f\n",c/d*b+a-b);
return 0;
}
//comment the output👇

//practice program 10
#include<stdio.h>
int main()
{ int a=3;
a=!a;
printf("%d",a);
return 0;
}
//comment the output👇

#include<stdio.h>
int main()
{ int a=-2;
printf("%d",-a);
return 0;
}

#include<stdio.h>
int main()
{ int a=2,b=3;
printf("%d",++a-b);
return 0;
}

#include<stdio.h>
int main()
{ printf("%d",10!=10||5<4&&8);
return 0;
}
// comment the output👇

#include<stdio.h>
int main()
{ int a=3,b=6,c=2;
printf("%d",a*5&&5||(b/c));
return 0;
}
//comment the output👇

#include<stdio.h>
int main()
{ int x=3,y=5,a=7,b=6,c=2;
printf("%d",x*y<(a+b)||c);
return 0;
}
//comment the output👇

//Program to print following pattrn.
/* 12345
12345
12345
12345
12345
*/
#include<stdio.h>
int main()
{ int i,j;
for(i=1;i<=5;i++)
{
for(j=1;j<=5;j++)
{
printf("%d",j);
}
printf("\n");
}
return 0;
}
//#patterns

//Program to print following pattrn.
/* *****
*****
*****
*****
*****
*/
#include<stdio.h>
int main()
{ int i,j;
for(i=1;i<=5;i++)
{
for(j=1;j<=5;j++)
{
printf("*");
}
printf("\n");
}
return 0;
}

//Program to print following pattrn.
/* *
**
***
****
*****
*/
#include<stdio.h>
int main()
{ int i,j;
for(i=1;i<=5;i++)
{
for(j=1;j<=i;j++)
{
printf("*");
}
printf("\n");
}
return 0;
}

//Program to print following pattrn.
/* 1
12
123
1234
12345
*/
#include<stdio.h>
int main()
{ int i,j;
for(i=1;i<=5;i++)
{
for(j=1;j<=i;j++)
{
printf("%d",j);
}
printf("\n");
}
return 0;
}

//Program to print following pattrn.
/* 1
22
333
4444
55555
*/
#include<stdio.h>
int main()
{ int i,j;
for(i=1;i<=5;i++)
{
for(j=1;j<=i;j++)
{
printf("%d",i);
}
printf("\n");
}
return 0;
}

//Program to print following pattrn.
/* 0
12
345
6789
*/
#include<stdio.h>
int main()
{ int i,j,count=0;
for(i=0;i<4;i++)
{
for(j=0;j<=i;j++)
{
printf("%d",count);
count++;
}
printf("\n");
}
return 0;
}

//Program to print following pattrn.
/* a
ab
abc
abcd
abcde
*/
#include<stdio.h>
int main()
{ int i,j;
for(i=97;i<=101;i++)
{
for(j=97;j<=i;j++)
{
printf("%c",j);
}
printf("\n");
}
return 0;
}

//Program to print following pattern.
/* 1
12
123
1234
12345
*/
#include<stdio.h>
int main()
{ int i,j,k;
for(i=1;i<=5;i++)
{
for(k=5;k>i;k--)
{
printf(" ");
}
for(j=1;j<=i;j++)
{
printf("%d",j);
}
printf("\n");
}
return 0;
}

//Program to print following pattern.
/* 1
121
12321
1234321
123454321
*/
#include<stdio.h>
int main()
{ int i,j,k,l;
for(i=1;i<=5;i++)
{
for(k=5;k>i;k--)
{
printf(" ");
}
for(j=1;j<=i;j++)
{
printf("%d",j);
}
for(l=j-2;l>0;l--)
{
printf("%d",l);
}
printf("\n");
}
return 0;
}

//calculate power of a number without using pow() function
#include<stdio.h>
int main()
{
int base,exp,res=1,i;
printf("Enter the base:");
scanf("%d",&base);
printf("Enter the exponent:");
scanf("%d",&exp);
for(i=1;i<=exp;i++)
{
res=res*base;
}
printf("%d to the power of %d is :%d",base,exp,res);
return 0;
}

//program to print leap years from m to n'th year
#include<stdio.h>
int main()
{
int m,n;
printf("Enter the year m:");
scanf("%d",&m);
printf("Enter the year n:");
scanf("%d",&n);
do
{
if((m%4==0 && m%100!=0) || (m%400==0))
{
printf("%d is a leap year\n",m);
}
else{
printf("%d is not a leap year\n",m);
}
m+=1;
}while(m<=n);
return 0;
}

#include <stdio.h>
int main() {
int x = 5;
int y = x++;
printf("%d %d", x, y);
return 0;
}