Answered: The purpose of the following program…

The purpose of the following program is: * #include #include void main () { FILE *p; char c, a; p = fopen ("F:\\data.txt" " r+"); int N=0; do { c = fgetc (p); if ( c==' \n') {cout<>3);

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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There are some errors in the below code and I am unable to find them.Kindly resolve the errors and make program error free. #include<stdio.h> // including necessary header file #include<conio.h> //header file int merge(int L[],int lsize, int M[],int msize,int res[]); int fill(int[], int*, int[],int,int); // declare a function void print(int[],int,char[]); //define print method int main() //define main method // Declaring two L- and M-array and declaring array size and stored value //{int L[20]={8,9,12,34,56,66,76,89},lsize=8,M[]={2,4,56,66,68,70},msize=6,res[50],rsize=0; printf("Enter size of first array : "); scanf("%d",&lsize); printf("Enter size of second array : "); scanf("%d",&msize); printf("\n\n"); for(int i=0;i<lsize;i++){ printf("Enter value %d of first array : ",i); scanf("%d",&L[i]); } printf("\n\n"); for(int i=0;i<msize;i++){ printf("Enter value %d of second array : ",i);…
initial c++ file/starter code: #include <vector>#include <iostream>#include <algorithm> using namespace std; // The puzzle will always have exactly 20 columnsconst int numCols = 20; // Searches the entire puzzle, but may use helper functions to implement logicvoid searchPuzzle(const char puzzle[][numCols], const string wordBank[],vector <string> &discovered, int numRows, int numWords); // Printer function that outputs a vectorvoid printVector(const vector <string> &v);// Example of one potential helper function.// bool searchPuzzleToTheRight(const char puzzle[][numCols], const string &word,// int rowStart, int colStart) int main(){int numRows, numWords; // grab the array row dimension and amount of wordscin >> numRows >> numWords;// declare a 2D arraychar puzzle[numRows][numCols];// TODO: fill the 2D array via input// read the puzzle in from the input file using cin // create a 1D array for wodsstring wordBank[numWords];// TODO:…
Program: #include <stdio.h>#include <string.h>int main() { char s1[100],s2[100]; printf("Enter string1: "); gets(s1); printf("Enter string2: "); gets(s2); int i=strlen(s1); int j=strlen(s2); int count=0; while(count<=j){ s1[i]=s2[count]; count++; i++; } printf("After concatenation = %s",s1); return 0;} Q: Implement the above algorithms using functions in C++
C++
1. What is the output of the following code segment: char* s [] = { "NBY", "SDT"}; const char** z = s; const cout << z [1] [1]; cout << cout << a. DSDT b. DTY c. DTBY d. DTS e. *(z [1]+ 2); (*z + 1); None of the above
#include <iostream> using namespace std; int main(){ int a[100],n,i,item,loc=0; cout<<"Enter number of elements: "; cin>>n; cout<<"\nEnter numbers:\n"; for(i=1;i<=n;i++) { cin>>a[i]; } cout<<"\nEnter number to search:"; cin>>item; for(i=1;i<=n;i++) { if(item==a[i]) { loc=i; break; } } if(loc>0) { cout<<loc<<" is the location of item"; } else cout<<"\nno. not found";} Q: edit the code that shows after how many number of iteration searched value is found
It wont display the order total // JumpinJava.cpp - This program looks up and prints the names and prices of coffee orders. // Input: Interactive // Output: Name and price of coffee orders or error message if add-in is not found #include <iostream> #include <string> using namespace std; int main() { // Declare variables. string addIn; // Add-in ordered const int NUM_ITEMS = 5; // Named constant // Initialized array of add-ins string addIns[] = {"Cream", "Cinnamon", "Chocolate", "Amaretto", "Whiskey"}; // Initialized array of add-in prices double addInPrices[] = {.89, .25, .59, 1.50, 1.75}; bool foundIt = false; // Flag variable int x; // Loop control variable double orderTotal = 2.00; // All orders start with a 2.00 charge // Get user input cout << "Enter coffee add-in or XXX to quit: "; cin >> addIn; // Write the rest of the program here. while(addIn != "XXX") //loop until user…
#include <iostream> #include <cstdlib> #include <ctime> using namespace std; int main() { srand(time(0)); char choice; int random = rand() % 101 + 100; do { cout << "Would you like to (p)play or watch the (c)computer play?\n"; cin >> choice; int guess; if (choice == 'p') { do { cout << "Enter your guess between 100 and 200.\n"; cin >> guess; if (guess > random) { cout << "Sorry, your guess is too high, try again.\n"; } else if (guess < random) { cout << "Sorry, your guess is too low, try again.\n"; } else { cout << "Congrats, you guessed the correct number, " << random << ".\n"; } } while (guess != random); } else if (choice == 'c') { int num = rand() % 101 + 100; do { cout << "The computer's guess is " << num << endl; if (num < random) { cout << "Sorry, your guess is too low, try again!\n"; num += rand() % (random - num) + 1 ; } else if (num > random) { cout…
Need help! please fix my code #include <stdio.h>#include <stdlib.h>#include <string.h> int main(){char name[50];printf("Enter File Name:\n");scanf("%s",name);FILE *fp = fopen(name, "r");if (fp == NULL){perror("The file can't be open.");exit(1);} char chunk[128];FILE *fptr1;fptr1 = fopen("passed.txt", "w");FILE *fptr2;fptr2 = fopen("failed.txt", "w");FILE *fptr3;fptr3 = fopen("invalid.txt", "w"); while (fgets(chunk, sizeof(chunk), fp) != NULL){int x = atoi(chunk);if(x>=70 && x<=100){fprintf(fptr1, "%d, ", x);}else if (x <= 69 && x >= 0){fprintf(fptr2, "%d, ", x);}else{fprintf(fptr3, "%d, ", x);}}printf("All grades are evaluated and stored in their respective files.");fclose(fp);fclose(fptr1);fclose(fptr2);fclose(fptr3);printf("\nDISPLAY FILE MENU\n");printf("[1] Passing\n");printf("[2] Failing\n");printf("[3] Invalid\n");printf("Option: "); int choice;scanf("%d", &choice);switch(choice){case 1:fptr1 = fopen("passed.txt", "r");while…
// LargeSmall.cpp - This program calculates the largest and smallest of three integer values. #include <iostream> using namespace std; int main() { // This is the work done in the housekeeping() function // Declare and initialize variables here int largest; // Largest of the three values int smallest; // Smallest of the three values // Prompt the user to enter 3 integer values // Write assignment, add conditional statements here as appropriate // This is the work done in the endOfJob() function // Output largest and smallest number. cout << "The largest value is " << largest << endl; cout << "The smallest value is " << smallest << endl; return 0; }
C++ 2D ARRAY, Continue this codes and change the array to seat[6][6]. Include a loop that asks the user if he wants to try again or no. If the user enters the reserved seat again then display "this seat is taken already". Upon trying again, the reserved seat displayed as (X) must be displayed. My Code: #include <iostream> using namespace std; int main() { cout << "Bus Seats:\n"; cout << "* A B C D\n" << "1 * * * *\n" << "2 * * * *\n" << "3 * * * *\n" << "4 * * * *\n"; char seat[5][5]; int row, column; char col; cout << "Enter the row of your selected seat: "; cin >> row; cout << "Enter the column of your selected seat: "; cin >> col; for(int i=0; i<5; i++){ for(int j=0; j<5; j++){ if(i==0){ switch (j) { case 0: seat[i][j]='*'; break; case 1: seat[i][j]='A'; break; case 2: seat[i][j]='B'; break; case 3: seat[i][j]='C'; break; case 4: seat[i][j]='D'; break; } } else if (j==0) { switch(i) { case 1: seat[i][j]='1';…
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