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I need to convert this code from C to C++

I need to convert this code from C to C++

Database System Concepts
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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I need to convert this code from C to C++

int main() { char number[2000]; FILE *fptr; if ((fptr = fopen("datafile1.txt","r")) == NULL) { printf("Error! opening file"); // Program exits if the file pointer returns NULL. return(1); } if (fgets(number,2000,fptr) != NULL) fclose(fptr); printf("\n File before sorting is \n\n %s \n\n", number); printf("Frequencies are as follows:\n\n"); char temp; int i, j; int n= strlen(number); freqCount(number, n); return 0; }
Transcribed Image Text:int main() { char number[2000]; FILE *fptr; if ((fptr = fopen("datafile1.txt","r")) == NULL) { printf("Error! opening file"); // Program exits if the file pointer returns NULL. return(1); } if (fgets(number,2000,fptr) != NULL) fclose(fptr); printf("\n File before sorting is \n\n %s \n\n", number); printf("Frequencies are as follows:\n\n"); char temp; int i, j; int n= strlen(number); freqCount(number, n); return 0; }
//sort datafile1 frequency #include <stdio.h> #include <stdlib.h> #include <string.h> /*function prints frequency of list*/ void freqCount(char list[], int size){ int freq[size]; int count, j, i = 0; for(i=0; i<size; i++){ freq[i]= -1; //count frequencies for(j=0; j<size; j++){ //count each number at least once count = 1; for(i=j+1; i<size; i++){ //compare values if(list[j] == list[i]){ count++; //if repeated set repeated numbers' freq to 0 freq[i]=0; } } //store each frequency once //if freqlj]!=0 then that number hasn't been recorded yet if(freqlj) != 0}{ freq[j]=count; } } //print freqs for(j=0; j<size; j++){ if(freqlj]!=0){ printf(""%c' is repeated %d times. \n\n", list[j],freq[j]); return;
Transcribed Image Text://sort datafile1 frequency #include <stdio.h> #include <stdlib.h> #include <string.h> /*function prints frequency of list*/ void freqCount(char list[], int size){ int freq[size]; int count, j, i = 0; for(i=0; i<size; i++){ freq[i]= -1; //count frequencies for(j=0; j<size; j++){ //count each number at least once count = 1; for(i=j+1; i<size; i++){ //compare values if(list[j] == list[i]){ count++; //if repeated set repeated numbers' freq to 0 freq[i]=0; } } //store each frequency once //if freqlj]!=0 then that number hasn't been recorded yet if(freqlj) != 0}{ freq[j]=count; } } //print freqs for(j=0; j<size; j++){ if(freqlj]!=0){ printf(""%c' is repeated %d times. \n\n", list[j],freq[j]); return;
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