This is my code and under it will be autograder can someone please show me what

Question

This is my code and under it will be autograder can someone please show me what is wrong with the code.

#include<stdio.h>

#include<stdlib.h>

int main()

{

printf("Enter the length of the string:");

int n,i=0;

scanf("%d",&n);//reading input

//you can modify this line

//int *a = (int *)malloc(sizeof(int)*n+2);

char *a = (char *)malloc(sizeof(char)*n);//declaration

//dynamic allcoation

printf("Enter the string:");

while(i<n)//reading string...

{

scanf("%c",(a+i));

i++;

}

char c;

printf("Enter search character:");

scanf("%c",&c);

i=0;

int count=0;

//finding character cound

while(i<n)

{

if(*(a+i)==c)count++;

i++;

}

printf("Characters found: %d ",count);

return 0;

}

autograder

Explanation / Answer

#include <iomanip>
#include <iostream>
#include <string>
#include <fstream>
#include <vector>
using namespace std;

// structured data type containing information on students
struct Student_data
{
// member variables
string first_name;
string last_name;
double assignment;
double exam;
double project;
};

int main()
{

// get the input file name from the user
string filename;
cout << "Enter the input filename: ";
getline(cin, filename);

string lname;
string fname;

// try to open the input file
ifstream infile{filename};

if (!infile)
{
cout << "Error: could not open input file ";
}
else
{
// get the output file name from the user
cout << "Enter the output filename: ";
getline(cin, filename);

// try to open the output file
ofstream outfile{filename};

if (!outfile)
{
cout << "Error: could not open output file ";
}
else
{
// read in the data from the input file and output it
// to the output file

// read in first line of document

infile >> lname;
infile >> fname;
}
}

cout << fname << " "<< lname <<" ";
}

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