Loops in C-language

 1#include <stdio.h>
 2#include <string.h>
 3
 4void main()
 5{
 6    // loop means - to execute the statement while the condition satisfied
 7    // for and while are two method mainly used for loops(do while is also there)
 8
 9    // condition gives output in the form of 1 = True 0 = False
10
11    int i = 0; // assignment
12    while(i <= 10) // condition 
13    {
14        printf("Hi this is the example of loop %d \n", i);
15        i = i + 1; // increment
16    }
17
18    while(1) // condition 
19    {
20        printf("Hi this is the example of loop %d \n", i);
21        i = i + 1; // increment
22        
23        if (i <= 10){
24            continue;
25        }else{
26            break;
27        }
28
29    }
30
31    
32    // looping using for loop
33    for(int i = 0; i <= 10; i = i + 1)
34    {
35        printf("Hi all - %d \n", i);
36    }
37
38}

 1#include <stdio.h>
 2int main()
 3{
 4    int n,i,j;
 5    printf("enter the value for n\n");
 6    scanf("%d", &n);
 7    for (i = 1; i <= n; i++)
 8    {
 9        for (j = 1; j <= i; j++)
10        {
11            printf("%d", i);
12        }
13        printf("\n");
14    }
15    return 0;
16}

 1#include <stdio.h>
 2int main()
 3{
 4    int n,i,j;
 5    printf("enter the value for n");
 6    scanf("%d", &n);
 7    for (i = 1; i <= n; i++)
 8    {
 9        for (j = 1; j <= i; j++)
10        {
11            printf("%d", j);
12        }
13        printf("\n");
14    }
15    return 0;
16}

 1#include <stdio.h>
 2int main()
 3{
 4    int n,i;
 5    printf("enter the value of n:\n");
 6    scanf("%d", &n);
 7    int t1=0,t2=1,t3=t1+t2;
 8    printf("%d\n%d", t1,t2);
 9    for(i=3;i<=n;++i){
10        printf("\n%d", t3);
11        t1=t2;
12        t2=t3;
13        t3=t1+t2;
14    }
15    return 0;
16
17}

 1#include <stdio.h>
 2int main()
 3{
 4    int x, n, count, sum, i;
 5    printf("enter the value for x and n:\n");
 6    scanf("%d%d",&x,&n);
 7    i = 1;
 8    count = 1;
 9    sum = 1;
10    while (i <= n)
11    {
12        count = count * x;
13        sum = sum + count;
14        i++;
15    }
16    printf("sum is %d", sum);
17    return 0;
18}

 1#include<stdio.h>
 2void main()
 3{   int fact(int a);
 4    int n,z;
 5    printf("enter the number:");
 6    scanf("%d",&n);
 7    z=fact(n);
 8    printf("the factorial of the given number is:%d",z);
 9}
10int fact(int a)
11{   int i,c=1,res;
12    for(i=1;i<=a;i++)
13    {
14        res=i * c;
15        c=res;
16
17    }
18    return c;
19
20} 

 1#include <stdio.h>
 2int fact(int a);
 3void main()
 4{
 5    int num, res;
 6    printf("enter the number:");
 7    scanf("%d", &num);
 8    res = fact(num);
 9    printf("result is %d", res);
10}
11int fact(int n)
12{
13    if (n == 1)
14    {
15        return 1;
16    }
17    else
18    {
19        
20        return (n * fact(n - 1));
21    }
22}

 1#include<stdio.h>
 2int main()
 3{
 4    int a,b,c,temp;
 5    int gcd(int m,int n);
 6    printf("enter the values for a and b.\n");
 7    scanf("%d%d",&a,&b);
 8    if(a<b){
 9        temp=a;
10        a=b;
11        b=temp;
12
13    }
14    c=gcd(a,b);
15    printf("gcd of given two numbers is:%d",c);
16    return 0;
17}
18int gcd(int m,int n){
19    int rem;
20    rem=m%n;
21    while(rem!=0){
22        m=n;
23        n=rem;
24        rem=m%n;
25
26    }
27    return n;
28}

 1#include <stdio.h>
 2int gcd(int m, int n);
 3void main()
 4{
 5    int x, y, z;
 6    printf("enter two numbers \n");
 7    scanf("%d%d", &x, &y);
 8    z = gcd(x, y);
 9    printf("gcd of two number is %d", z);
10}
11int gcd(int m, int n)
12{
13    if (n != 0)
14    {
15        return gcd(n, m % n);
16    }
17    else
18    {
19        return m;
20    }
21}