48 Questions Answers (1) - C lang

8/10/2019 48 Questions Answers (1) - C lang

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1. find the immediate next prime number

for eg: input:9

output:11

hint was given: input will not exceed 100

#include

#include

void main(){

int n,i,j,flag=0,out;

clrscr();

printf("enter the num\n");

scanf("%d",&n);for(i=n+1;i


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void main()

{

int n,i,a[100],j,k,op=0,count=0;

clrscr();

printf("enter the range ");scanf("%d",&n);

for(i=0;i


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#include

void main()

{

int n,a[20],i,j,t;

printf("enter the size of array\n");scanf("%d",&n);

printf("enter the elements\n");

for(i=0;i


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}

sum=prode+prodo;

printf("sum is:%d",sum);

}

6. reverse the number

#include

void main(){

int n,rem,rev=0;

printf("enter the number\n");

scanf("%d",&n);

while(n){

rem=n%10;

rev=rev*10+rem;

n=n/10;

}printf("reversed no. is:%d",rev);

}

7. .decimal to bimary

#include

#include

int main()

{

int a[20];

int dec,i=0;

printf("Enter the decimal number to find its binary number\n");

scanf("%d",&dec);

while(dec>0){

a[i]=dec%2;i++;

dec=dec/2;

}

printf("Binary number of %d is = ",dec);

for(int j=i-1;j>=0;j--)

{printf("%d",a[j]);


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}

getch();

}

8. input1:{1,2,2,4,3,4}-{key,value,key....}input2:6(array size)

input3:4(value)

output:2,3( print all the keys for which the value is given in input3)

BR1: if the input3 is not in input1 store op=-1BR2: if input2


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{

printf("%d",out[0]=-1);

}

else

{

for(i=1;i


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for(i=0;i


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}

}

getch();

}

12. wap to find factorial of individual digits in a given input number and store it

in an array

eg:123

output={1,4,9}

#include

void main()

{int n,k=0,rem,fact,out[20];

printf("enter the no.\n");

scanf("%d",&n);

while(n!=0)

{rem=n%10;

fact=1;

while(rem!=0)

{

fact=fact*rem;rem--;

}

out[k]=fact;

k++;

n=n/10;

}

k--;

for(;k>=0;k--)

printf("%d\t",out[k]);}

13. wap to print only non intersecting elements from the two given arrays. size of

both input arrays is equal.

eg:input1={1,2,3,4,5}

input2={2,3,6,7,8}output={1,4,5,6,7,8}


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#include

#include

void main()

{

int n,a[100],b[100],c[100],i,j,k=0,flag,fg;clrscr();

printf("enter the range\n");

scanf("%d",&n);

printf("enter the first array\n");for(i=0;i


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{

fg=1;

break;

}

}

if(fg==0)

{c[k]=b[i];

k++;

}

}

for(i=0;i


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while(rem!=0)

{

fact=fact*rem;

rem--;

}sum+=fact;

n=n/10;

}

if(t==sum)printf("strong");

else

printf("nt strong");

}

}

16.

17. armstrong between two ranges and find largest one in that.br: if any range -ve store -1

#include

void main(){

int l,u,i,t,sum,rem,out;

printf("enter the lower limit\n");

scanf("%d",&l);

printf("enter the upper limit\n");

scanf("%d",&u);

if(l


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sum=sum+rem*rem*rem;

t=t/10;

}

if(sum==i)

out=i;

}

printf("highest armstrong no. in given range is :%d",out);

}}

18.reverse the array elements in array,if range is odd using mid=n/2 formula

br: store -2 if elemnt is even or range -ve,store -1 if any one element is negative

#include

void main()

{

int n,mid,out[20],a[20],temp,flag=0,i;printf("enter array size\n");

scanf("%d",&n);

mid=n/2;

if(n


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}

}

}

for(i=0;i


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{

a[k]=a[k+1];

}

n--;}

else

{

sum=sum+a[i];i++;

}

}

out=sum;

}}

printf("op is :%d",out);

}

20.

21.

22. smallest of four numbers.Br: If input132767 op=-2

#include

//#include

void main(){

int a,b,c,d,op;

//clrscr();printf("enter four nums");

scanf("%d %d %d %d",&a,&b,&c,&d);if(a


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printf("%d",op);

}

24. Add multiples of "input1" till input2 and store in output1

input1=3input2=15

output1=45

#include

#include

void main()

{

int a,b,c=0,i ;clrscr();

printf("enter two nums");

scanf("%d %d",&a,&b);

for(i=a;i


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{

sum=sum+a[i];

count++;

}

avg=sum/3;printf("%d",avg);

getch();

}

26. input1={12365,12396,12125,12256}

input2=4(arraysize)

input3=123(find this pattern in array and print next numbers in output array)

output1={65,96}br:input1[i]


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getch();

}

28. extract the even digit

for eg: input:4512

output:42

input:1315ouput:0

#include

#include

void main()

{

int n,r,flag=0,sum=0,su=0;

printf("enter number");

scanf("%d",&n);

while(n!=0){

r=n%10;

if(r%2==0)

{

sum=sum*10+r;

flag=1;

}

n=n/10;

}if(flag==0)

{

printf("%d",0);

}else

{


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while(sum!=0)

{

r=sum%10;

su=su*10+r;

sum=sum/10;}

printf("%d",su);

}

getch();

}

29. find the diff between consecutive elements in array . assign the largest

difference to the output

eg: ip={4,10,6,5,3}

op=6;(store the difference between consecutive elements in a seperate array)

#include

#include

void main()

{int i,n,a[100],op,max=0,dif;

clrscr();

printf("enter the range");

scanf("%d",&n);

for(i=0;i


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30.

(REFER 22)

31. & 33. &35.(look intersecting element in array soln.)

37. remove the negative elements in a array and sort the remaining elements

#includevoid main()

{

int a[20],n,j,i,k,t;

clrscr();

printf("enter the size of array\n");scanf("%d",&n);


for(i=0;i


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{

for(j=i+1;ja[j])

{t=a[i];

a[i]=a[j];

a[j]=t;

}}

}

printf("resultant array is\n");

for(i=0;i


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39. input3 must be the size of two arrays input1 and input2 compare the two

arrays and store the dissimilar elements in the output array.

example:

input3=4[array size]

input1={2,4,7,8}input2={3,4,8,9}

output1={2,7,3,9}

(SAME AS NON-INTERSECTING)

40.

(SSAME AS 8)

41. find the largest armstrong number among the given input range.

example: range is, input1 =300 between input2=500

output1=407

#include

#include

void main()

{int l,u,i,t,rem,sum=0,max=0;

printf("enter lowe followed by upper range\n");

scanf("%d %d",&l,&u);

for(i=l;i0)

{

rem=t%10;sum=sum+(rem*rem*rem);

t=t/10;}

if(sum==i)

max=i;

}

printf("largest armstr. is:%d",max);getch();

}


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42. second smallest number in a array

#include

#include

void main(){

int n,i,j,a[20],temp;

clrscr();

printf("enter the size\n");scanf("%d",&n);

printf("enter the elemenets\n");

for(i=0;i


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44.

(SAMe AS 22)

45. number of numbers repeating in an array

#include#include

void main()

{

int a[20],n,i,j,k,count,c=0;

clrscr();printf("enter the size of array\n");

scanf("%d",&n);


for(i=0;i


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c++;

}

printf("no. of numbers repea is:%d",c);

/*printf("array after deleting duplicate is:\n");

for(i=0;i


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else

j++;

}

// printf("%d repeats %d times \n",a[i],count);if(count>0)

{

out[i]=a[i];

l++;}

}

for(i=0;i


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{

while(n>0)

{

fact=fact*n;

n--;}

op=fact;

}

printf("fact is %d",op);}

48. print the digits count in the following format.

example:

input1={1,23,2,34,456,67}output1={1,no of single digits,2, no of 2 digits and so on}

output1={1,2,2,3,3,1}

#include#include

void main()

{

int n,i,a[100],b[100],one=0,two=0,three=0,j;

clrscr();printf("enter the range");

scanf("%d",&n);

for(i=0;i


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}

b[1]=one;

b[3]=two;

b[5]=three;

for(i=0;i

48 Questions Answers (1) - C lang

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