Answer Posted / aisha

#include<Stdio.h>
void main()
{
int sum=0,a[10],i,n;
printf("enter value of n");
scanf("%d",&n);
printf("enter array elements");
for(i=o;i<=n;;i++)
scanf("%d",&a[i]);
for(i=0;i<=n;i++)
{
sum= sum+a[i];
}
printf("sum of all array elements = %d",sum);
}

What is const volatile variable in c?

565

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In cryptography, you could often break the algorithm if you know what was the original (plain) text that was encoded into the current ciphertext. This is called the plain text attack. In this simple problem, we illustrate the plain text attack on a simple substitution cipher encryption, where you know each letter has been substituted with a different letter from the alphabet but you don’t know what that letter is. You are given the cipherText as the input string to the function getwordSets(). You know that a plain text "AMMUNITION" occurs somewhere in this cipher text. Now, you have to find out which sets of characters corresponds to the encrypted form of the "AMMUNITION". You can assume that the encryption follows simple substitution only. [Hint: You could use the pattern in the "AMMUNITION" like MM occurring twice together to identify this]

1948

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A banker has a seif with a cipher. Not to forget the cipher, he wants to write it coded as following: each digit to be replaced with the difference of 9 with the current digit. The banker chose a cipher. Decipher it knowing the cipher starts with a digit different than 9. I need to write a program that takes the cipher from the keyboard and prints the new cipher. I thought of the following: Take the input from the keyboard and put it into a string or an array. Go through the object with a for and for each digit other than the first, substract it from 9 and add it to another variable. Print the new variable. Theoretically I thought of it but I don't know much C. Could you give me any kind of hint, whether I am on the right track or not?

1502

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writ a program to compare using strcmp VIVA and viva with its output.

1510

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Explain what is the purpose of "extern" keyword in a function declaration?

611

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How do you use a pointer to a function?

621

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What is a structure and why it is used?

609

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Explain #pragma statements.

595

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What is pointer to pointer in c language?

583

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Given a valid 24 hour format time find the combination of the value and write a program ,do not hard the value and if any other inputs provided should work with the logic implemented Input: 11:30 Output: 13:10 Input: 18:25 Output: 21:58

1107

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What is the difference between typedef and #define?

529

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What is #include stdio h?

673

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What is getch() function?

637

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What is difference between far and near pointers?

594

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a) Identify the following declarations. Ex. int i (integer variable) float a[l0](array of 10 real nos) int (*f())() void *f int (*f()) [] void *f int f[] [] [] char *(*f) () int (*f[]) [] float(*f) [] [] float **f int ******f

1577

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