Question

Please help me for this homework problem, thanks!!

Instruction：(use visual studio or gcc)

Code and Problem: (please copy to visual studio, thanks)

#include <stdio.h>
#include <string.h>

#pragma warning(disable : 4996) // compiler directive for Visual Studio only

// Read before you start:
// You are given a partially complete program. Your job is to complete the functions in order for this program to work successfully.
// All instructions are given above the required functions, please read them and follow them carefully.
// You shoud not modify the function return types or parameters.
// You can assume that all inputs are valid. Ex: If prompted for an integer, the user will input an integer.

// Global Macro Values. They are used to define the size of 2D array of characters
#define NUM_STRINGS 4
#define STRING_LENGTH 50

// Forward Declarations
void initializeStrings(char[NUM_STRINGS][STRING_LENGTH]);
void printStrings(char[NUM_STRINGS][STRING_LENGTH]);
void reverseStrings(char strings[NUM_STRINGS][STRING_LENGTH]);
void encryptStrings(char[NUM_STRINGS][STRING_LENGTH], int);
void decryptStrings(char[NUM_STRINGS][STRING_LENGTH], int);
int splitAndPrintSentences(char s[NUM_STRINGS*STRING_LENGTH]);
void inputMatrix(int matrixA[3][3]);
void determinant(int matrixA[3][3]);

// Problem 1: initializeStrings (5 points)
// Traverse the 2D array of characters variable 'strings' (input from user in main() ) and set all characters in each
// array to a null terminator so that there is a 4 row and 35 column 2D array full of null terminators.
// The null terminator is represented by the character value '\0' and is used to denote the end of a string.
// This may come in use later in the program to know the end of string.
void initializeStrings(char strings[NUM_STRINGS][STRING_LENGTH])
{

}

// Problem 2: printStrings (5 points)
// Traverse the 2D character array "strings" and print each of the contained strings.
// See the example outputs provided in the word document. Your output should match the example outputs.
void printStrings(char strings[NUM_STRINGS][STRING_LENGTH])
{

}

// Problem 3: reverseString (5 points)
// Reverse each string of strings[][].
// Consider one string at a time and reverse the characters. For instance, "hi hello" should reverse to "olleh ih".
void reverseStrings(char strings[NUM_STRINGS][STRING_LENGTH])
{

}

Answer 1

#include <stdio.h>
#include <string.h>

#pragma warning(disable : 4996) // compiler directive for Visual Studio only

// Read before you start:
// You are given a partially complete program. Your job is to complete the functions in order for this program to work successfully.
// All instructions are given above the required functions, please read them and follow them carefully.
// You shoud not modify the function return types or parameters.
// You can assume that all inputs are valid. Ex: If prompted for an integer, the user will input an integer.

// Global Macro Values. They are used to define the size of 2D array of characters
#define NUM_STRINGS 4
#define STRING_LENGTH 50

// Forward Declarations
void initializeStrings(char[NUM_STRINGS][STRING_LENGTH]);
void printStrings(char[NUM_STRINGS][STRING_LENGTH]);
void reverseStrings(char strings[NUM_STRINGS][STRING_LENGTH]);
void encryptStrings(char[NUM_STRINGS][STRING_LENGTH], int);
void decryptStrings(char[NUM_STRINGS][STRING_LENGTH], int);
int splitAndPrintSentences(char s[NUM_STRINGS*STRING_LENGTH]);
void inputMatrix(int matrixA[3][3]);
void determinant(int matrixA[3][3]);

// Problem 1: initializeStrings (5 points)
// Traverse the 2D array of characters variable 'strings' (input from user in main() ) and set all characters in each
// array to a null terminator so that there is a 4 row and 35 column 2D array full of null terminators.
// The null terminator is represented by the character value '\0' and is used to denote the end of a string.
// This may come in use later in the program to know the end of string.
void initializeStrings(char strings[NUM_STRINGS][STRING_LENGTH])
{
   for(int i=0;i<NUM_STRINGS;i++){
       strings[i][0]='\0';
   }
}

// Problem 2: printStrings (5 points)
// Traverse the 2D character array "strings" and print each of the contained strings.
// See the example outputs provided in the word document. Your output should match the example outputs.
void printStrings(char strings[NUM_STRINGS][STRING_LENGTH])
{
   for(int i=0;i<NUM_STRINGS;i++){
       for(int j=0;strings[i][j]!='\0' && j<STRING_LENGTH;j++){
           printf("%c",strings[i][j]);
       }
       printf("\n");
   }
}

// Problem 3: reverseString (5 points)
// Reverse each string of strings[][].
// Consider one string at a time and reverse the characters. For instance, "hi hello" should reverse to "olleh ih".
void reverseStrings(char strings[NUM_STRINGS][STRING_LENGTH])
{
   char str[STRING_LENGTH];
  
   for(int i=0;i<NUM_STRINGS;i++){
       int c=0;
      
      
       for(int j=0;strings[i][j]!='\0' && j<STRING_LENGTH;j++){
           str[j]=strings[i][j];
           c++;
       }
      
       for(int j=c-1;j>=0;j--){
           strings[i][c-j-1]=str[j];
       }
       strings[i][c]='\0';
  
   }  
}

int main(){
  
   char strngLst[NUM_STRINGS][STRING_LENGTH];
   initializeStrings(strngLst);
  
   strcpy(strngLst[0],"Hello , It is Me");
   strcpy(strngLst[1],"This is good");
   strcpy(strngLst[2],"I have a knowldge in programming");
   strcpy(strngLst[3],"Nice Day!");
  
  
   printf("Print Strings:-\n\n");
   printStrings(strngLst);
  
   printf("\n\nPrint Reverse Strings:-\n\n");
   reverseStrings(strngLst);
   printStrings(strngLst);
  
   return(0);
}